diff --git a/src/class-fields/grammar-field-classelementname-initializer-alt.case b/src/class-fields/grammar-field-classelementname-initializer-alt.case
new file mode 100644
index 0000000000000000000000000000000000000000..b132aa0dff7d0f288bdb232593af26380a182c78
--- /dev/null
+++ b/src/class-fields/grammar-field-classelementname-initializer-alt.case
@@ -0,0 +1,68 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: FieldDefinition, ClassElementName, PropertyName = Initializer Syntax
+info: |
+
+ ClassElement :
+ ...
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PropertyName :
+ LiteralPropertyName
+ ComputedPropertyName
+
+ LiteralPropertyName :
+ IdentifierName
+
+ Initializer :
+ = AssignmentExpression
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart ::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart ::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue ::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: syntax/valid
+features: [class-fields-public]
+---*/
+
+//- fields
+$ = 1;
+_ = 2;
+\u{6F} = 3;
+℘ = 4; // DO NOT CHANGE THE NAME OF THIS FIELD
+ZW_‌_NJ = 5; // DO NOT CHANGE THE NAME OF THIS FIELD
+ZW_â€_J = 6; // DO NOT CHANGE THE NAME OF THIS FIELD
diff --git a/src/class-fields/grammar-field-classelementname-initializer.case b/src/class-fields/grammar-field-classelementname-initializer.case
new file mode 100644
index 0000000000000000000000000000000000000000..bdfe127a64f0e6e38a841e80a53947978746cfb4
--- /dev/null
+++ b/src/class-fields/grammar-field-classelementname-initializer.case
@@ -0,0 +1,68 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: FieldDefinition, ClassElementName, PropertyName = Initializer Syntax
+info: |
+
+ ClassElement :
+ ...
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PropertyName :
+ LiteralPropertyName
+ ComputedPropertyName
+
+ LiteralPropertyName :
+ IdentifierName
+
+ Initializer :
+ = AssignmentExpression
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart ::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart ::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue ::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: syntax/valid
+features: [class-fields-public]
+---*/
+
+//- fields
+$ = 1;
+_ = 2;
+\u{6F} = 3;
+\u2118 = 4;
+ZW_\u200C_NJ = 5;
+ZW_\u200D_J = 6;
diff --git a/src/class-fields/grammar-field-def-has-initializer-no-sc-error.case b/src/class-fields/grammar-field-def-has-initializer-no-sc-error.case
new file mode 100644
index 0000000000000000000000000000000000000000..7c117a00afc829e69671250e19e52e9ee5a8f3d4
--- /dev/null
+++ b/src/class-fields/grammar-field-def-has-initializer-no-sc-error.case
@@ -0,0 +1,27 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: SyntaxError
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+template: syntax/invalid
+features: [class-fields-private]
+---*/
+
+//- fields
+x = []
+y;
diff --git a/src/class-fields/grammar-field-identifier-alt.case b/src/class-fields/grammar-field-identifier-alt.case
new file mode 100644
index 0000000000000000000000000000000000000000..4721b105b5fb6d13b94b56e4c0218f604de38eed
--- /dev/null
+++ b/src/class-fields/grammar-field-identifier-alt.case
@@ -0,0 +1,68 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Valid FieldDefinition, ClassElementName, PropertyName Syntax
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PropertyName :
+ LiteralPropertyName
+ ComputedPropertyName
+
+ LiteralPropertyName :
+ IdentifierName
+ StringLiteral
+ NumericLiteral
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart ::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart ::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue ::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: syntax/valid
+features: [class-fields-public]
+---*/
+
+//- fields
+$;
+_;
+\u{6F};
+℘; // DO NOT CHANGE THE NAME OF THIS FIELD
+ZW_‌_NJ; // DO NOT CHANGE THE NAME OF THIS FIELD
+ZW_â€_J; // DO NOT CHANGE THE NAME OF THIS FIELD
diff --git a/src/class-fields/grammar-field-identifier-invalid-ues-error.case b/src/class-fields/grammar-field-identifier-invalid-ues-error.case
new file mode 100644
index 0000000000000000000000000000000000000000..e151beefe1cea70bb9e57fd6a8180a9c17a37a80
--- /dev/null
+++ b/src/class-fields/grammar-field-identifier-invalid-ues-error.case
@@ -0,0 +1,63 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Invalid FieldDefinition, ClassElementName, PropertyName Syntax
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PropertyName :
+ LiteralPropertyName
+ ComputedPropertyName
+
+ LiteralPropertyName :
+ IdentifierName
+ StringLiteral
+ NumericLiteral
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart ::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart ::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue ::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: syntax/invalid
+features: [class-fields-public]
+---*/
+
+//- fields
+\u0000;
diff --git a/src/class-fields/grammar-field-identifier-invalid-zwj-error.case b/src/class-fields/grammar-field-identifier-invalid-zwj-error.case
new file mode 100644
index 0000000000000000000000000000000000000000..4c7798b6d307ce320fe3b68fd687a07b8d413ca0
--- /dev/null
+++ b/src/class-fields/grammar-field-identifier-invalid-zwj-error.case
@@ -0,0 +1,63 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Invalid FieldDefinition, ClassElementName, PropertyName Syntax
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PropertyName :
+ LiteralPropertyName
+ ComputedPropertyName
+
+ LiteralPropertyName :
+ IdentifierName
+ StringLiteral
+ NumericLiteral
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart ::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart ::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue ::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: syntax/invalid
+features: [class-fields-public]
+---*/
+
+//- fields
+\u200D_ZWJ;
diff --git a/src/class-fields/grammar-field-identifier-invalid-zwnj-error.case b/src/class-fields/grammar-field-identifier-invalid-zwnj-error.case
new file mode 100644
index 0000000000000000000000000000000000000000..3aea99515c9b38e5188ecf0161d7bfa1ddfff219
--- /dev/null
+++ b/src/class-fields/grammar-field-identifier-invalid-zwnj-error.case
@@ -0,0 +1,63 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Invalid FieldDefinition, ClassElementName, PropertyName Syntax
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PropertyName :
+ LiteralPropertyName
+ ComputedPropertyName
+
+ LiteralPropertyName :
+ IdentifierName
+ StringLiteral
+ NumericLiteral
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart ::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart ::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue ::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: syntax/invalid
+features: [class-fields-public]
+---*/
+
+//- fields
+\u200C_ZWNJ;
diff --git a/src/class-fields/grammar-field-identifier.case b/src/class-fields/grammar-field-identifier.case
new file mode 100644
index 0000000000000000000000000000000000000000..f064256c674a2f71aa5f5285e4757d8fa6a0736f
--- /dev/null
+++ b/src/class-fields/grammar-field-identifier.case
@@ -0,0 +1,68 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Valid FieldDefinition, ClassElementName, PropertyName Syntax
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PropertyName :
+ LiteralPropertyName
+ ComputedPropertyName
+
+ LiteralPropertyName :
+ IdentifierName
+ StringLiteral
+ NumericLiteral
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart ::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart ::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue ::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: syntax/valid
+features: [class-fields-public]
+---*/
+
+//- fields
+$;
+_;
+\u{6F};
+\u2118;
+ZW_\u200C_NJ;
+ZW_\u200D_J;
diff --git a/src/class-fields/grammar-fields-multi-line.case b/src/class-fields/grammar-fields-multi-line.case
new file mode 100644
index 0000000000000000000000000000000000000000..c8754e499c3c39a849626ed5b0c471bafaa3e78f
--- /dev/null
+++ b/src/class-fields/grammar-fields-multi-line.case
@@ -0,0 +1,27 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Valid multi-line, multi-field
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+template: syntax/valid
+features: [class-fields-public]
+---*/
+
+//- fields
+x
+y
diff --git a/src/class-fields/grammar-fields-same-line-error.case b/src/class-fields/grammar-fields-same-line-error.case
new file mode 100644
index 0000000000000000000000000000000000000000..5646019930bc962b54d97c5765ed3446363acb68
--- /dev/null
+++ b/src/class-fields/grammar-fields-same-line-error.case
@@ -0,0 +1,26 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: SyntaxError
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+template: syntax/invalid
+features: [class-fields-public]
+---*/
+
+//- fields
+x y
diff --git a/src/class-fields/grammar-privatename-classelementname-initializer-alt.case b/src/class-fields/grammar-privatename-classelementname-initializer-alt.case
new file mode 100644
index 0000000000000000000000000000000000000000..12a9fd8b3964441cf2a327041af76853d61f726d
--- /dev/null
+++ b/src/class-fields/grammar-privatename-classelementname-initializer-alt.case
@@ -0,0 +1,65 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Valid PrivateName = Initializer Syntax
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PrivateName ::
+ # IdentifierName
+
+ Initializer :
+ = AssignmentExpression
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: syntax/valid
+features: [class-fields-private]
+---*/
+
+//- fields
+#$ = 1;
+#_ = 2;
+#\u{6F} = 3;
+#℘ = 4; // DO NOT CHANGE THE NAME OF THIS FIELD
+#ZW_‌_NJ = 5; // DO NOT CHANGE THE NAME OF THIS FIELD
+#ZW_â€_J = 6; // DO NOT CHANGE THE NAME OF THIS FIELD
diff --git a/src/class-fields/grammar-privatename-classelementname-initializer.case b/src/class-fields/grammar-privatename-classelementname-initializer.case
new file mode 100644
index 0000000000000000000000000000000000000000..9f2c48eb4afbd9c929e6fa60477260ec7c9e4e26
--- /dev/null
+++ b/src/class-fields/grammar-privatename-classelementname-initializer.case
@@ -0,0 +1,65 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Valid PrivateName = Initializer Syntax
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PrivateName ::
+ # IdentifierName
+
+ Initializer :
+ = AssignmentExpression
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: syntax/valid
+features: [class-fields-private]
+---*/
+
+//- fields
+#$ = 1;
+#_ = 2;
+#\u{6F} = 3;
+#\u2118 = 4;
+#ZW_\u200C_NJ = 5;
+#ZW_\u200D_J = 6;
diff --git a/src/class-fields/grammar-privatename-error.case b/src/class-fields/grammar-privatename-error.case
new file mode 100644
index 0000000000000000000000000000000000000000..7561ed5d8acc2023a8f35eb9497a4cd4aeb23518
--- /dev/null
+++ b/src/class-fields/grammar-privatename-error.case
@@ -0,0 +1,29 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: No space allowed between sigial and IdentifierName
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PrivateName ::
+ # IdentifierName
+
+template: syntax/invalid
+features: [class-fields-private]
+---*/
+
+//- fields
+# x
diff --git a/src/class-fields/grammar-privatename-identifier-invalid-ues.case b/src/class-fields/grammar-privatename-identifier-invalid-ues.case
new file mode 100644
index 0000000000000000000000000000000000000000..568eafc1387d427c27432f877b4ab4ca5bfbeef0
--- /dev/null
+++ b/src/class-fields/grammar-privatename-identifier-invalid-ues.case
@@ -0,0 +1,57 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Valid PrivateName Syntax
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PrivateName ::
+ # IdentifierName
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: syntax/invalid
+features: [class-fields-private]
+---*/
+
+//- fields
+#\u0000;
diff --git a/src/class-fields/grammar-privatename-identifier-invalid-zwj-error.case b/src/class-fields/grammar-privatename-identifier-invalid-zwj-error.case
new file mode 100644
index 0000000000000000000000000000000000000000..8be2fac24f5be07277f2e7233c89c4a72d0fc4d2
--- /dev/null
+++ b/src/class-fields/grammar-privatename-identifier-invalid-zwj-error.case
@@ -0,0 +1,58 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Valid PrivateName Syntax
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PrivateName ::
+ # IdentifierName
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: syntax/invalid
+features: [class-fields-private]
+---*/
+
+//- fields
+#\u200D_ZWJ;
+
diff --git a/src/class-fields/grammar-privatename-identifier-invalid-zwnj-error.case b/src/class-fields/grammar-privatename-identifier-invalid-zwnj-error.case
new file mode 100644
index 0000000000000000000000000000000000000000..3764c945e995fa0003ecd84e7052c7aaceea9af9
--- /dev/null
+++ b/src/class-fields/grammar-privatename-identifier-invalid-zwnj-error.case
@@ -0,0 +1,58 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Valid PrivateName Syntax
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PrivateName ::
+ # IdentifierName
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: syntax/invalid
+features: [class-fields-private]
+---*/
+
+//- fields
+#\u200C_ZWNJ;
+
diff --git a/src/class-fields/grammar-privatename-identifier-semantics-stringvalue.case b/src/class-fields/grammar-privatename-identifier-semantics-stringvalue.case
new file mode 100644
index 0000000000000000000000000000000000000000..849c52be3cb7a6880526e51032203a146ffec02a
--- /dev/null
+++ b/src/class-fields/grammar-privatename-identifier-semantics-stringvalue.case
@@ -0,0 +1,91 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: PrivateName Static Semantics, StringValue
+esid: sec-private-names-static-semantics-stringvalue
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PrivateName ::
+ # IdentifierName
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+
+ 1. Return the String value consisting of the sequence of code
+ units corresponding to PrivateName. In determining the sequence
+ any occurrences of \ UnicodeEscapeSequence are first replaced
+ with the code point represented by the UnicodeEscapeSequence
+ and then the code points of the entire PrivateName are converted
+ to code units by UTF16Encoding (10.1.1) each code point.
+
+template: productions
+features: [class-fields-private]
+---*/
+
+//- fields
+#\u{6F};
+#\u2118;
+#ZW_\u200C_NJ;
+#ZW_\u200D_J;
+//- privateinspectionfunctions
+o(value) {
+ this.#o = value;
+ return this.#o;
+}
+℘(value) {
+ this.#℘ = value;
+ return this.#℘;
+}
+ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+ this.#ZW_‌_NJ = value;
+ return this.#ZW_‌_NJ;
+}
+ZW_â€_J(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+ this.#ZW_â€_J = value;
+ return this.#ZW_â€_J;
+}
+//- assertions
+assert.sameValue(c.o(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_â€_J(1), 1);
diff --git a/src/class-fields/grammar-privatename-identifier.case b/src/class-fields/grammar-privatename-identifier.case
new file mode 100644
index 0000000000000000000000000000000000000000..43e817d4cb704947bff4007ba669d177247d4128
--- /dev/null
+++ b/src/class-fields/grammar-privatename-identifier.case
@@ -0,0 +1,62 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Valid PrivateName Syntax
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PrivateName ::
+ # IdentifierName
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: syntax/valid
+features: [class-fields-private]
+---*/
+
+//- fields
+#$;
+#_;
+#\u{6F};
+#\u2118;
+#ZW_\u200C_NJ;
+#ZW_\u200D_J;
diff --git a/src/class-fields/grammar-privatename-no-initializer-with-method.case b/src/class-fields/grammar-privatename-no-initializer-with-method.case
new file mode 100644
index 0000000000000000000000000000000000000000..8acac18273202151f3db8bfb12e2947158b4e584
--- /dev/null
+++ b/src/class-fields/grammar-privatename-no-initializer-with-method.case
@@ -0,0 +1,30 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: SyntaxError
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PrivateName ::
+ # IdentifierName
+
+template: syntax/valid
+features: [class-fields-private]
+---*/
+
+//- fields
+#x
+m() {}
diff --git a/src/class-fields/grammar-privatenames-multi-line.case b/src/class-fields/grammar-privatenames-multi-line.case
new file mode 100644
index 0000000000000000000000000000000000000000..727746c59acfb2902d605a0ce37098445d686820
--- /dev/null
+++ b/src/class-fields/grammar-privatenames-multi-line.case
@@ -0,0 +1,30 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: SyntaxError
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PrivateName ::
+ # IdentifierName
+
+template: syntax/valid
+features: [class-fields-private]
+---*/
+
+//- fields
+#x
+#y
diff --git a/src/class-fields/grammar-privatenames-same-line-error.case b/src/class-fields/grammar-privatenames-same-line-error.case
new file mode 100644
index 0000000000000000000000000000000000000000..2a1fbb90360794c92ed56c0b5ce1a422e0312d6c
--- /dev/null
+++ b/src/class-fields/grammar-privatenames-same-line-error.case
@@ -0,0 +1,31 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: SyntaxError
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PrivateName ::
+ # IdentifierName
+
+template: syntax/invalid
+negative:
+
+features: [class-fields-private]
+---*/
+
+//- fields
+#x #y
diff --git a/src/class-fields/rs-field-identifier-initializer.case b/src/class-fields/rs-field-identifier-initializer.case
new file mode 100644
index 0000000000000000000000000000000000000000..c88435d355ff87455b5147372c371214c1610a94
--- /dev/null
+++ b/src/class-fields/rs-field-identifier-initializer.case
@@ -0,0 +1,66 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Valid FieldDefinition
+info: |
+
+ ClassElement :
+ ...
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+
+ PropertyName :
+ LiteralPropertyName
+ ComputedPropertyName
+
+ LiteralPropertyName :
+ IdentifierName
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: productions
+features: [class-fields-private]
+---*/
+
+//- fields
+$ = 1; _ = 1; \u{6F} = 1; \u2118 = 1; ZW_\u200C_NJ = 1; ZW_\u200D_J = 1
+//- assertions
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
diff --git a/src/class-fields/rs-field-identifier.case b/src/class-fields/rs-field-identifier.case
new file mode 100644
index 0000000000000000000000000000000000000000..fea8fa0b3c4de38cc2f1b3c4aa7a0bfffb043b25
--- /dev/null
+++ b/src/class-fields/rs-field-identifier.case
@@ -0,0 +1,73 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Valid FieldDefinition
+info: |
+
+ ClassElement :
+ ...
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+
+ PropertyName :
+ LiteralPropertyName
+ ComputedPropertyName
+
+ LiteralPropertyName :
+ IdentifierName
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: productions
+features: [class-fields-private]
+---*/
+
+//- fields
+$; _; \u{6F}; \u2118; ZW_\u200C_NJ; ZW_\u200D_J
+//- assertions
+c.$ = 1;
+c._ = 1;
+c.\u{6F} = 1;
+c.\u2118 = 1;
+c.ZW_\u200C_NJ = 1;
+c.ZW_\u200D_J = 1;
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
diff --git a/src/class-fields/rs-privatename-identifier-alt.case b/src/class-fields/rs-privatename-identifier-alt.case
new file mode 100644
index 0000000000000000000000000000000000000000..94ec8e31dfa81b4af88357a5713e932f717147ca
--- /dev/null
+++ b/src/class-fields/rs-privatename-identifier-alt.case
@@ -0,0 +1,90 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Valid PrivateName
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PrivateName ::
+ # IdentifierName
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: productions
+features: [class-fields-private]
+---*/
+
+//- fields
+#$; #_; #\u{6F}; #℘; #ZW_‌_NJ; #ZW_â€_J
+//- privateinspectionfunctions
+$(value) {
+ this.#$ = value;
+ return this.#$;
+}
+_(value) {
+ this.#_ = value;
+ return this.#_;
+}
+\u{6F}(value) {
+ this.#\u{6F} = value;
+ return this.#\u{6F};
+}
+℘(value) {
+ this.#℘ = value;
+ return this.#℘;
+}
+ZW_‌_NJ(value) {
+ this.#ZW_‌_NJ = value;
+ return this.#ZW_‌_NJ;
+}
+ZW_â€_J(value) {
+ this.#ZW_â€_J = value;
+ return this.#ZW_â€_J;
+}
+//- assertions
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_â€_J(1), 1);
+
diff --git a/src/class-fields/rs-privatename-identifier-initializer-alt.case b/src/class-fields/rs-privatename-identifier-initializer-alt.case
new file mode 100644
index 0000000000000000000000000000000000000000..81e6a0daf61c6efc85be9fd43abcac02b1ea8f97
--- /dev/null
+++ b/src/class-fields/rs-privatename-identifier-initializer-alt.case
@@ -0,0 +1,84 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Valid PrivateName
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PrivateName ::
+ # IdentifierName
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: productions
+features: [class-fields-private]
+---*/
+
+//- fields
+#$ = 1; #_ = 1; #\u{6F} = 1; #℘ = 1; #ZW_‌_NJ = 1; #ZW_â€_J = 1
+//- privateinspectionfunctions
+$() {
+ return this.#$;
+}
+_() {
+ return this.#_;
+}
+\u{6F}() {
+ return this.#\u{6F};
+}
+℘() {
+ return this.#℘;
+}
+ZW_‌_NJ() {
+ return this.#ZW_‌_NJ;
+}
+ZW_â€_J() {
+ return this.#ZW_â€_J;
+}
+//- assertions
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.℘(), 1);
+assert.sameValue(c.ZW_‌_NJ(), 1);
+assert.sameValue(c.ZW_â€_J(), 1);
+
diff --git a/src/class-fields/rs-privatename-identifier-initializer.case b/src/class-fields/rs-privatename-identifier-initializer.case
new file mode 100644
index 0000000000000000000000000000000000000000..0c01d8a4f927089e7d704cc455ada6777a4370f1
--- /dev/null
+++ b/src/class-fields/rs-privatename-identifier-initializer.case
@@ -0,0 +1,84 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Valid PrivateName
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PrivateName ::
+ # IdentifierName
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: productions
+features: [class-fields-private]
+---*/
+
+//- fields
+#$ = 1; #_ = 1; #\u{6F} = 1; #\u2118 = 1; #ZW_\u200C_NJ = 1; #ZW_\u200D_J = 1
+//- privateinspectionfunctions
+$() {
+ return this.#$;
+}
+_() {
+ return this.#_;
+}
+\u{6F}() {
+ return this.#\u{6F};
+}
+\u2118() {
+ return this.#\u2118;
+}
+ZW_\u200C_NJ() {
+ return this.#ZW_\u200C_NJ;
+}
+ZW_\u200D_J() {
+ return this.#ZW_\u200D_J;
+}
+//- assertions
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.\u2118(), 1);
+assert.sameValue(c.ZW_\u200C_NJ(), 1);
+assert.sameValue(c.ZW_\u200D_J(), 1);
+
diff --git a/src/class-fields/rs-privatename-identifier.case b/src/class-fields/rs-privatename-identifier.case
new file mode 100644
index 0000000000000000000000000000000000000000..587e01aebb04e6deb97e0feed6bdcc45cc5ef9eb
--- /dev/null
+++ b/src/class-fields/rs-privatename-identifier.case
@@ -0,0 +1,90 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Valid PrivateName
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PrivateName ::
+ # IdentifierName
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: productions
+features: [class-fields-private]
+---*/
+
+//- fields
+#$; #_; #\u{6F}; #\u2118; #ZW_\u200C_NJ; #ZW_\u200D_J
+//- privateinspectionfunctions
+$(value) {
+ this.#$ = value;
+ return this.#$;
+}
+_(value) {
+ this.#_ = value;
+ return this.#_;
+}
+\u{6F}(value) {
+ this.#\u{6F} = value;
+ return this.#\u{6F};
+}
+\u2118(value) {
+ this.#\u2118 = value;
+ return this.#\u2118;
+}
+ZW_\u200C_NJ(value) {
+ this.#ZW_\u200C_NJ = value;
+ return this.#ZW_\u200C_NJ;
+}
+ZW_\u200D_J(value) {
+ this.#ZW_\u200D_J = value;
+ return this.#ZW_\u200D_J;
+}
+//- assertions
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
diff --git a/src/class-fields/rs-static-method-privatename-identifier-alt.case b/src/class-fields/rs-static-method-privatename-identifier-alt.case
new file mode 100644
index 0000000000000000000000000000000000000000..fbcaeaad86cc19c4b39f0b0e39ebe2eb86643b2e
--- /dev/null
+++ b/src/class-fields/rs-static-method-privatename-identifier-alt.case
@@ -0,0 +1,109 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Valid Static Method PrivateName
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ static FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PrivateName ::
+ # IdentifierName
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: productions
+features: [class-static-fields-private]
+---*/
+
+//- fields
+static #$(value) {
+ this.$ = value;
+ return value;
+}
+static #_(value) {
+ this.#stored = value;
+ return value;
+}
+static #o(value) {
+ this.#stored = value;
+ return value;
+}
+static #℘(value) {
+ this.#stored = value;
+ return value;
+}
+static #ZW_‌_NJ(value) {
+ this.#stored = value;
+ return value;
+}
+static #ZW_â€_J(value) {
+ this.#stored = value;
+ return value;
+}
+//- privateinspectionfunctions
+static $(value) {
+ return this.#$(value);
+}
+static _(value) {
+ return this.#_(value);
+}
+static o(value) {
+ return this.#o(value);
+}
+static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+ return this.#℘(value);
+}
+static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+ return this.#ZW_‌_NJ(value);
+}
+static ZW_â€_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+ return this.#ZW_â€_J(value);
+}
+
+//- assertions
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_â€_J(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+
diff --git a/src/class-fields/rs-static-method-privatename-identifier.case b/src/class-fields/rs-static-method-privatename-identifier.case
new file mode 100644
index 0000000000000000000000000000000000000000..b8ed91e5654bbf98978179c0d00c36fb4f294530
--- /dev/null
+++ b/src/class-fields/rs-static-method-privatename-identifier.case
@@ -0,0 +1,103 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Valid Static Method PrivateName
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ static FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PrivateName ::
+ # IdentifierName
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: productions
+features: [class-static-fields-private]
+---*/
+
+//- fields
+static #$(value) {
+ return value;
+}
+static #_(value) {
+ return value;
+}
+static #\u{6F}(value) {
+ return value;
+}
+static #\u2118(value) {
+ return value;
+}
+static #ZW_\u200C_NJ(value) {
+ return value;
+}
+static #ZW_\u200D_J(value) {
+ return value;
+}
+//- privateinspectionfunctions
+static $(value) {
+ return this.#$(value);
+}
+static _(value) {
+ return this.#_(value);
+}
+static \u{6F}(value) {
+ return this.#\u{6F}(value);
+}
+static \u2118(value) {
+ return this.#\u2118(value);
+}
+static ZW_\u200C_NJ(value) {
+ return this.#ZW_\u200C_NJ(value);
+}
+static ZW_\u200D_J(value) {
+ return this.#ZW_\u200D_J(value);
+}
+
+//- assertions
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
diff --git a/src/class-fields/rs-static-privatename-identifier-alt.case b/src/class-fields/rs-static-privatename-identifier-alt.case
new file mode 100644
index 0000000000000000000000000000000000000000..8e9afc857ba8c650dcc4ab20aab946f51e1820f2
--- /dev/null
+++ b/src/class-fields/rs-static-privatename-identifier-alt.case
@@ -0,0 +1,91 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Valid Static PrivateName
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ static FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PrivateName ::
+ # IdentifierName
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: productions
+features: [class-static-fields-private]
+---*/
+
+//- fields
+static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_â€_J
+//- privateinspectionfunctions
+static $(value) {
+ this.#$ = value;
+ return this.#$;
+}
+static _(value) {
+ this.#_ = value;
+ return this.#_;
+}
+static o(value) {
+ this.#\u{6F} = value;
+ return this.#\u{6F};
+}
+static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+ this.#℘ = value;
+ return this.#℘;
+}
+static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+ this.#ZW_‌_NJ = value;
+ return this.#ZW_‌_NJ;
+}
+static ZW_â€_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+ this.#ZW_â€_J = value;
+ return this.#ZW_â€_J;
+}
+//- assertions
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_â€_J(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+
diff --git a/src/class-fields/rs-static-privatename-identifier-initializer-alt.case b/src/class-fields/rs-static-privatename-identifier-initializer-alt.case
new file mode 100644
index 0000000000000000000000000000000000000000..b7d7edf3e4a55352804d882b883ec5b12cb0dc09
--- /dev/null
+++ b/src/class-fields/rs-static-privatename-identifier-initializer-alt.case
@@ -0,0 +1,85 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Valid Static PrivateName
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ static FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PrivateName ::
+ # IdentifierName
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: productions
+features: [class-static-fields-private]
+---*/
+
+//- fields
+static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_â€_J = 1
+//- privateinspectionfunctions
+static $() {
+ return this.#$;
+}
+static _() {
+ return this.#_;
+}
+static \u{6F}() {
+ return this.#\u{6F};
+}
+static ℘() {
+ return this.#℘;
+}
+static ZW_‌_NJ() {
+ return this.#ZW_‌_NJ;
+}
+static ZW_â€_J() {
+ return this.#ZW_â€_J;
+}
+//- assertions
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_â€_J(), 1);
+
diff --git a/src/class-fields/rs-static-privatename-identifier-initializer.case b/src/class-fields/rs-static-privatename-identifier-initializer.case
new file mode 100644
index 0000000000000000000000000000000000000000..ccc3a2559069c97679dfc6ccacb9d8625ea490b5
--- /dev/null
+++ b/src/class-fields/rs-static-privatename-identifier-initializer.case
@@ -0,0 +1,85 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Valid Static PrivateName
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ static FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PrivateName ::
+ # IdentifierName
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: productions
+features: [class-static-fields-private]
+---*/
+
+//- fields
+static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #\u2118 = 1; static #ZW_\u200C_NJ = 1; static #ZW_\u200D_J = 1
+//- privateinspectionfunctions
+static $() {
+ return this.#$;
+}
+static _() {
+ return this.#_;
+}
+static \u{6F}() {
+ return this.#\u{6F};
+}
+static \u2118() {
+ return this.#\u2118;
+}
+static ZW_\u200C_NJ() {
+ return this.#ZW_\u200C_NJ;
+}
+static ZW_\u200D_J() {
+ return this.#ZW_\u200D_J;
+}
+//- assertions
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.\u2118(), 1);
+assert.sameValue(C.ZW_\u200C_NJ(), 1);
+assert.sameValue(C.ZW_\u200D_J(), 1);
+
diff --git a/src/class-fields/rs-static-privatename-identifier.case b/src/class-fields/rs-static-privatename-identifier.case
new file mode 100644
index 0000000000000000000000000000000000000000..f3dd362b72ca1bb7ebcabab7fda48003ce2db16f
--- /dev/null
+++ b/src/class-fields/rs-static-privatename-identifier.case
@@ -0,0 +1,91 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: Valid Static PrivateName
+info: |
+
+ ClassElement :
+ MethodDefinition
+ static MethodDefinition
+ FieldDefinition ;
+ static FieldDefinition ;
+ ;
+
+ FieldDefinition :
+ ClassElementName Initializer _opt
+
+ ClassElementName :
+ PropertyName
+ PrivateName
+
+ PrivateName ::
+ # IdentifierName
+
+ IdentifierName ::
+ IdentifierStart
+ IdentifierName IdentifierPart
+
+ IdentifierStart ::
+ UnicodeIDStart
+ $
+ _
+ \ UnicodeEscapeSequence
+
+ IdentifierPart::
+ UnicodeIDContinue
+ $
+ \ UnicodeEscapeSequence
+ <ZWNJ> <ZWJ>
+
+ UnicodeIDStart::
+ any Unicode code point with the Unicode property "ID_Start"
+
+ UnicodeIDContinue::
+ any Unicode code point with the Unicode property "ID_Continue"
+
+
+ NOTE 3
+ The sets of code points with Unicode properties "ID_Start" and
+ "ID_Continue" include, respectively, the code points with Unicode
+ properties "Other_ID_Start" and "Other_ID_Continue".
+
+template: productions
+features: [class-static-fields-private]
+---*/
+
+//- fields
+static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J
+//- privateinspectionfunctions
+static $(value) {
+ this.#$ = value;
+ return this.#$;
+}
+static _(value) {
+ this.#_ = value;
+ return this.#_;
+}
+static \u{6F}(value) {
+ this.#\u{6F} = value;
+ return this.#\u{6F};
+}
+static \u2118(value) {
+ this.#\u2118 = value;
+ return this.#\u2118;
+}
+static ZW_\u200C_NJ(value) {
+ this.#ZW_\u200C_NJ = value;
+ return this.#ZW_\u200C_NJ;
+}
+static ZW_\u200D_J(value) {
+ this.#ZW_\u200D_J = value;
+ return this.#ZW_\u200D_J;
+}
+//- assertions
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
diff --git a/src/class-fields/syntax/invalid/cls-decl-fields-invalid-syntax.template b/src/class-fields/syntax/invalid/cls-decl-fields-invalid-syntax.template
new file mode 100644
index 0000000000000000000000000000000000000000..3a3edf7981965e73a3fb2086c10fbea396c17860
--- /dev/null
+++ b/src/class-fields/syntax/invalid/cls-decl-fields-invalid-syntax.template
@@ -0,0 +1,18 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: prod-ClassElement
+name: class declaration
+path: language/statements/class/syntax-invalid-
+features: [class]
+negative:
+ phase: parse
+ type: SyntaxError
+---*/
+
+throw "Test262: This statement should not be evaluated.";
+
+class C {
+ /*{ fields }*/
+}
diff --git a/src/class-fields/syntax/invalid/cls-expr-fields-invalid-syntax.template b/src/class-fields/syntax/invalid/cls-expr-fields-invalid-syntax.template
new file mode 100644
index 0000000000000000000000000000000000000000..06e279519d546dffc9f1232619088b278b17c5d4
--- /dev/null
+++ b/src/class-fields/syntax/invalid/cls-expr-fields-invalid-syntax.template
@@ -0,0 +1,18 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: prod-ClassElement
+name: class expression
+path: language/expressions/class/syntax-invalid-
+features: [class]
+negative:
+ phase: parse
+ type: SyntaxError
+---*/
+
+throw "Test262: This statement should not be evaluated.";
+
+var C = class {
+ /*{ fields }*/
+};
diff --git a/src/class-fields/syntax/valid/cls-decl-fields-valid-syntax.template b/src/class-fields/syntax/valid/cls-decl-fields-valid-syntax.template
new file mode 100644
index 0000000000000000000000000000000000000000..c59480a8c54e1f9943c37bfc8461612d75110507
--- /dev/null
+++ b/src/class-fields/syntax/valid/cls-decl-fields-valid-syntax.template
@@ -0,0 +1,13 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: prod-ClassElement
+name: class declaration
+path: language/statements/class/syntax-valid-
+features: [class]
+---*/
+
+class C {
+ /*{ fields }*/
+}
diff --git a/src/class-fields/syntax/valid/cls-expr-fields-valid-syntax.template b/src/class-fields/syntax/valid/cls-expr-fields-valid-syntax.template
new file mode 100644
index 0000000000000000000000000000000000000000..c74bde6f942f451861c6e293d8845c15a998ac88
--- /dev/null
+++ b/src/class-fields/syntax/valid/cls-expr-fields-valid-syntax.template
@@ -0,0 +1,13 @@
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: prod-ClassElement
+name: class expression
+path: language/expressions/class/syntax-valid-
+features: [class]
+---*/
+
+var C = class {
+ /*{ fields }*/
+};