Remove "line" tests and ensure error under "line"

test/intl402/Segmenter/constructor/constructor/options-granularity-valid.js

@@ -7,7 +7,7 @@ description: Checks handling of valid values for the granularity option to the S
 info: |
     Intl.Segmenter ([ locales [ , options ]])
 
-    13. Let granularity be ? GetOption(options, "granularity", "string", « "grapheme", "word", "sentence", "line" », "grapheme").
+    13. Let granularity be ? GetOption(options, "granularity", "string", « "grapheme", "word", "sentence" », "grapheme").
     14. Set segmenter.[[SegmenterGranularity]] to granularity.
 features: [Intl.Segmenter]
 ---*/
@@ -17,8 +17,7 @@ const validOptions = [
   ["grapheme", "grapheme"],
   ["word", "word"],
   ["sentence", "sentence"],
-  ["line", "line"],
-  [{ toString() { return "line"; } }, "line"],
+  [{ toString() { return "word"; } }, "word"],
 ];
 
 for (const [granularity, expected] of validOptions) {

test/intl402/Segmenter/constructor/constructor/options-lineBreakStyle-invalid.js

-// Copyright 2018 Igalia, S.L. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-esid: sec-Intl.Segmenter
-description: Checks handling of invalid value for the style option to the Segmenter constructor.
-info: |
-    Intl.Segmenter ([ locales [ , options ]])
-
-    9. Let lineBreakStyle be ? GetOption(options, "lineBreakStyle", "string", « "strict", "normal", "loose" », "normal").
-    15. If granularity is "line",
-        a. Set segmenter.[[SegmenterLineBreakStyle]] to r.[[lb]].
-features: [Intl.Segmenter]
----*/
-
-const invalidOptions = [
-  null,
-  1,
-  "",
-  "giant",
-  "Strict",
-  "STRICT",
-  "strict\0",
-  "Normal",
-  "NORMAL",
-  "normal\0",
-  "Loose",
-  "LOOSE",
-  "loose\0",
-];
-
-for (const lineBreakStyle of invalidOptions) {
-  assert.throws(RangeError, function() {
-    new Intl.Segmenter([], { lineBreakStyle });
-  }, `${lineBreakStyle} is an invalid style option value`);
-}

test/intl402/Segmenter/constructor/constructor/options-lineBreakStyle-valid.js

-// Copyright 2018 Igalia, S.L. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-esid: sec-Intl.Segmenter
-description: Checks handling of valid values for the lineBreakStyle option to the Segmenter constructor.
-info: |
-    Intl.Segmenter ([ locales [ , options ]])
-
-    9. Let lineBreakStyle be ? GetOption(options, "lineBreakStyle", "string", « "strict", "normal", "loose" », "normal").
-    15. If granularity is "line",
-        a. Set segmenter.[[SegmenterLineBreakStyle]] to r.[[lb]].
-features: [Intl.Segmenter]
----*/
-
-const validOptions = [
-  [undefined, "normal"],
-  ["strict", "strict"],
-  ["normal", "normal"],
-  ["loose", "loose"],
-  [{ toString() { return "loose"; } }, "loose"],
-];
-
-for (const [lineBreakStyle, expected] of validOptions) {
-  const segmenter = new Intl.Segmenter([], { granularity: "line", lineBreakStyle });
-  const resolvedOptions = segmenter.resolvedOptions();
-  assert.sameValue(resolvedOptions.lineBreakStyle, expected);
-}

test/intl402/Segmenter/constructor/constructor/options-order.js

@@ -8,8 +8,7 @@ info: |
     Intl.Segmenter ([ locales [ , options ]])
 
     7. Let matcher be ? GetOption(options, "localeMatcher", "string", « "lookup", "best fit" », "best fit").
-    9. Let lineBreakStyle be ? GetOption(options, "lineBreakStyle", "string", « "strict", "normal", "loose" », "normal").
-    13. Let granularity be ? GetOption(options, "granularity", "string", « "grapheme", "word", "sentence", "line" », "grapheme").
+    13. Let granularity be ? GetOption(options, "granularity", "string", « "grapheme", "word", "sentence" », "grapheme").
 includes: [compareArray.js]
 features: [Intl.Segmenter]
 ---*/
@@ -49,8 +48,6 @@ new Intl.Segmenter([], {
 assert.compareArray(callOrder, [
   "localeMatcher",
   "localeMatcher toString",
-  "lineBreakStyle",
-  "lineBreakStyle toString",
   "granularity",
   "granularity toString",
 ]);

test/intl402/Segmenter/constructor/constructor/options-throwing-getters.js

@@ -11,7 +11,6 @@ function CustomError() {}
 
 const options = [
   "localeMatcher",
-  "lineBreakStyle",
   "granularity",
 ];
 

test/intl402/Segmenter/constructor/constructor/options-toobject-prototype.js

@@ -13,11 +13,8 @@ features: [Intl.Segmenter]
 ---*/
 
 Object.defineProperties(Object.prototype, {
-  "lineBreakStyle": {
-    value: "loose",
-  },
   "granularity": {
-    value: "line",
+    value: "word",
   },
 })
 
@@ -32,8 +29,6 @@ const optionsArguments = [
 for (const options of optionsArguments) {
   const segmenter = new Intl.Segmenter([], options);
   const resolvedOptions = segmenter.resolvedOptions();
-  assert.sameValue(resolvedOptions.lineBreakStyle, "loose",
-    `options argument ${String(options)} should yield the correct value for "lineBreakStyle"`);
-  assert.sameValue(resolvedOptions.granularity, "line",
+  assert.sameValue(resolvedOptions.granularity, "word",
     `options argument ${String(options)} should yield the correct value for "granularity"`);
 }

test/intl402/Segmenter/constructor/constructor/options-valid-combinations.js

@@ -7,16 +7,12 @@ description: Checks handling of valid values for the granularity option to the S
 info: |
     Intl.Segmenter ([ locales [ , options ]])
 
-    9. Let lineBreakStyle be ? GetOption(options, "lineBreakStyle", "string", « "strict", "normal", "loose" », "normal").
-    13. Let granularity be ? GetOption(options, "granularity", "string", « "grapheme", "word", "sentence", "line" », "grapheme").
+    13. Let granularity be ? GetOption(options, "granularity", "string", « "grapheme", "word", "sentence" », "grapheme").
     14. Set segmenter.[[SegmenterGranularity]] to granularity.
-    15. If granularity is "line",
-        a. Set segmenter.[[SegmenterLineBreakStyle]] to r.[[lb]].
 features: [Intl.Segmenter]
 ---*/
 
-const lineBreakStyleOptions = ["strict", "normal", "loose"];
-const granularityOptions = ["grapheme", "word", "sentence", "line"];
+const granularityOptions = ["grapheme", "word", "sentence"];
 const combinations = [];
 
 combinations.push([
@@ -25,35 +21,16 @@ combinations.push([
   undefined,
 ]);
 
-for (const lineBreakStyle of lineBreakStyleOptions) {
-  combinations.push([
-    { lineBreakStyle },
-    "grapheme",
-    undefined,
-  ]);
-}
-
 for (const granularity of granularityOptions) {
   combinations.push([
     { granularity },
     granularity,
-    granularity === "line" ? "normal" : undefined,
+    undefined,
   ]);
 }
 
-for (const lineBreakStyle of lineBreakStyleOptions) {
-  for (const granularity of granularityOptions) {
-    combinations.push([
-      { granularity, lineBreakStyle },
-      granularity,
-      granularity === "line" ? lineBreakStyle : undefined,
-    ]);
-  }
-}
-
 for (const [input, granularity, lineBreakStyle] of combinations) {
   const segmenter = new Intl.Segmenter([], input);
   const resolvedOptions = segmenter.resolvedOptions();
   assert.sameValue(resolvedOptions.granularity, granularity);
-  assert.sameValue(resolvedOptions.lineBreakStyle, lineBreakStyle);
 }

test/intl402/Segmenter/iterator/granularity.js

@@ -8,7 +8,7 @@ features: [Intl.Segmenter]
 ---*/
 
 const text = "Hello World, Test 123! Foo Bar. How are you?";
-for (const granularity of ["grapheme", "word", "sentence", "line"]) {
+for (const granularity of ["grapheme", "word", "sentence"]) {
   const segmenter = new Intl.Segmenter("en", { granularity });
   const iter = segmenter.segment(text);
 

test/intl402/Segmenter/prototype/resolvedOptions/order.js

@@ -9,13 +9,12 @@ features: [Intl.Segmenter]
 ---*/
 
 const options = new Intl.Segmenter([], {
-  "granularity": "line",
+  "granularity": "word",
 }).resolvedOptions();
 
 const expected = [
   "locale",
   "granularity",
-  "lineBreakStyle",
 ];
 
 assert.compareArray(Object.getOwnPropertyNames(options), expected);

test/intl402/Segmenter/prototype/resolvedOptions/type-with-lbs.js

-// Copyright 2018 Igalia, S.L. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-esid: sec-Intl.Segmenter.prototype.resolvedOptions
-description: Checks the properties of the result of Intl.Segmenter.prototype.resolvedOptions().
-info: |
-    Intl.Segmenter.prototype.resolvedOptions ()
-
-    3. Let options be ! ObjectCreate(%ObjectPrototype%).
-    4. For each row of Table 1, except the header row, do
-        c. If v is not undefined, then
-            i. Perform ! CreateDataPropertyOrThrow(options, p, v).
-includes: [propertyHelper.js]
-features: [Intl.Segmenter]
----*/
-
-const rtf = new Intl.Segmenter("en-us", { "lineBreakStyle": "loose", "granularity": "line" });
-const options = rtf.resolvedOptions();
-assert.sameValue(Object.getPrototypeOf(options), Object.prototype, "Prototype");
-
-verifyProperty(options, "locale", {
-  value: "en-US",
-  writable: true,
-  enumerable: true,
-  configurable: true,
-});
-
-verifyProperty(options, "granularity", {
-  value: "line",
-  writable: true,
-  enumerable: true,
-  configurable: true,
-});
-
-verifyProperty(options, "lineBreakStyle", {
-  value: "loose",
-  writable: true,
-  enumerable: true,
-  configurable: true,
-});

test/intl402/Segmenter/prototype/segment/segment-line-following-modes.js

-// Copyright 2018 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-esid: sec-Intl.Segmenter.prototype.segment
-description: Verifies the behavior for the "segment" function of the Segmenter prototype object.
-info: |
-    Intl.Segmenter.prototype.segment( string )
-features: [Intl.Segmenter]
----*/
-
-let breakCounts = {};
-for (const locale of ["en", "fr", "ja", "zh", "ko"]) {
-  for (const lineBreakStyle of ["strict", "normal", "loose"]) {
-    const seg = new Intl.Segmenter(
-        [locale], {granularity: "line", lineBreakStyle: lineBreakStyle});
-    let opportunity = 0;
-    for (const text of [
-      // We know the following data caused different line break results between
-      // different modes.
-      // https://www.w3.org/TR/css-text-3/#propdef-line-break
-      // Japanese small kana or the Katakana-Hiragana prolonged sound mark
-      "あぁーぃーあーいーぁーぃー",
-      // hyphens:
-      // ‐ U+2010, – U+2013, 〜 U+301C, ゠ U+30A0
-      "ABC‐DEF–GHI〜JKL゠MNO",
-      // iteration marks:
-      // 々 U+3005, 〻 U+303B, ゝ U+309D, ゞ U+309E, ヽ U+30FD, ヾ U+30FE
-      "あ々あ〻あゝあゞあヽあヾあ",
-      // centered punctuation marks:
-      // ・ U+30FB, ： U+FF1A, ； U+FF1B, ･ U+FF65, ‼ U+203C
-      "ABC・DEF：GHI；JKL･MNO‼PQR",
-      // centered punctuation marks:
-      // ⁇ U+2047, ⁈ U+2048, ⁉ U+2049, ！ U+FF01, ？ U+FF1F
-      "ABC⁇DEF⁈GHI⁉JKL！MNO？PQR",
-      ]) {
-      const iter = seg.segment(text);
-      while (!iter.following()) {
-        opportunity++;
-      }
-    }
-    breakCounts[locale + "-" + lineBreakStyle] = opportunity;
-  }
-}
-// In Japanese
-// Just test the break count in loose mode is greater than normal mode.
-assert(breakCounts["ja-loose"] > breakCounts["ja-normal"]);
-// and test the break count in normal mode is greater than strict mode.
-assert(breakCounts["ja-normal"] > breakCounts["ja-strict"]);
-// In Chinese
-// Just test the break count in loose mode is greater than normal mode.
-assert(breakCounts["zh-loose"] > breakCounts["zh-normal"]);
-// and test the break count in normal mode is greater than strict mode.
-assert(breakCounts["zh-normal"] > breakCounts["zh-strict"]);
-// In English, French and Korean
-assert(breakCounts["en-loose"] >= breakCounts["en-normal"]);
-assert(breakCounts["fr-loose"] >= breakCounts["fr-normal"]);
-assert(breakCounts["ko-loose"] >= breakCounts["ko-normal"]);
-// and test the break count in normal mode is greater than strict mode.
-assert(breakCounts["en-normal"] > breakCounts["en-strict"]);
-assert(breakCounts["fr-normal"] > breakCounts["fr-strict"]);
-assert(breakCounts["ko-normal"] > breakCounts["ko-strict"]);

test/intl402/Segmenter/prototype/segment/segment-line-following.js

-// Copyright 2018 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-esid: sec-Intl.Segmenter.prototype.segment
-description: Verifies the behavior for the "segment" function of the Segmenter prototype object.
-info: |
-    Intl.Segmenter.prototype.segment( string )
-features: [Intl.Segmenter]
----*/
-
-const seg = new Intl.Segmenter([], {granularity: "line"})
-for (const text of [
-    "Hello world!", // English
-    " Hello world! ",  // English with space before/after
-    " Hello world? Foo bar!", // English
-    "Jedovatou mambu objevila žena v zahrádkářské kolonii.", // Czech
-    "Việt Nam: Nhất thể hóa sẽ khác Trung Quốc?",  // Vietnamese
-    "Σοβαρές ενστάσεις Κομισιόν για τον προϋπολογισμό της Ιταλίας", // Greek
-    "Решение Индии о покупке российских С-400 расценили как вызов США",  // Russian
-    "הרופא שהציל נשים והנערה ששועבדה ע",  // Hebrew,
-    "ترامب للملك سلمان: أنا جاد للغاية.. عليك دفع المزيد", // Arabic
-    "भारत की एस 400 मिसाइल के मुकाबले पाक की थाड, जानें कौन कितना ताकतवर",  //  Hindi
-    "ரெட் அலர்ட் எச்சரிக்கை; புதுச்சேரியில் நாளை அரசு விடுமுறை!", // Tamil
-    "'ఉత్తర్వులు అందే వరకు ఓటర్ల తుది జాబితాను వెబ్‌సైట్లో పెట్టవద్దు'", // Telugu
-    "台北》抹黑柯P失敗？朱學恒酸：姚文智氣pupu嗆大老闆", // Chinese
-    "วัดไทรตีระฆังเบาลงช่วงเข้าพรรษา เจ้าอาวาสเผยคนร้องเรียนรับผลกรรมแล้ว",  // Thai
-    "九州北部の一部が暴風域に入りました(日直予報士 2018年10月06日) - 日本気象協会 tenki.jp",  // Japanese
-    "법원 “다스 지분 처분권·수익권 모두 MB가 보유”", // Korean
-    ]) {
-  const iter = seg.segment(text);
-  let prev = 0;
-  let segments = [];
-  while (!iter.following()) {
-    assert(["soft", "hard"].includes(iter.breakType), iter.breakType);
-    assert(iter.index >= 0);
-    assert(iter.index <= text.length);
-    assert(iter.index > prev);
-    segments.push(text.substring(prev, iter.index));
-    prev = iter.index;
-  }
-  assert.sameValue(text, segments.join(""));
-}

test/intl402/Segmenter/prototype/segment/segment-line-iterable.js

-// Copyright 2018 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-esid: sec-Intl.Segmenter.prototype.segment
-description: Verifies the behavior for the "segment" function of the Segmenter prototype object.
-info: |
-    Intl.Segmenter.prototype.segment( string )
-features: [Intl.Segmenter]
----*/
-
-const seg = new Intl.Segmenter([], {granularity: "line"})
-for (const text of [
-    "Hello world!", // English
-    " Hello world! ",  // English with space before/after
-    " Hello world? Foo bar!", // English
-    "Jedovatou mambu objevila žena v zahrádkářské kolonii.", // Czech
-    "Việt Nam: Nhất thể hóa sẽ khác Trung Quốc?",  // Vietnamese
-    "Σοβαρές ενστάσεις Κομισιόν για τον προϋπολογισμό της Ιταλίας", // Greek
-    "Решение Индии о покупке российских С-400 расценили как вызов США",  // Russian
-    "הרופא שהציל נשים והנערה ששועבדה ע",  // Hebrew,
-    "ترامب للملك سلمان: أنا جاد للغاية.. عليك دفع المزيد", // Arabic
-    "भारत की एस 400 मिसाइल के मुकाबले पाक की थाड, जानें कौन कितना ताकतवर",  //  Hindi
-    "ரெட் அலர்ட் எச்சரிக்கை; புதுச்சேரியில் நாளை அரசு விடுமுறை!", // Tamil
-    "'ఉత్తర్వులు అందే వరకు ఓటర్ల తుది జాబితాను వెబ్‌సైట్లో పెట్టవద్దు'", // Telugu
-    "台北》抹黑柯P失敗？朱學恒酸：姚文智氣pupu嗆大老闆", // Chinese
-    "วัดไทรตีระฆังเบาลงช่วงเข้าพรรษา เจ้าอาวาสเผยคนร้องเรียนรับผลกรรมแล้ว",  // Thai
-    "九州北部の一部が暴風域に入りました(日直予報士 2018年10月06日) - 日本気象協会 tenki.jp",  // Japanese
-    "법원 “다스 지분 처분권·수익권 모두 MB가 보유”", // Korean
-    ]) {
-  let segments = [];
-  // Create another %SegmentIterator% to compare with result from the one that
-  // created in the for of loop.
-  let iter = seg.segment(text);
-  let prev = 0;
-  for (const v of seg.segment(text)) {
-    assert(["soft", "hard"].includes(v.breakType), v.breakType);
-    assert.sameValue("string", typeof v.segment);
-    assert(v.segment.length > 0);
-    segments.push(v.segment);
-
-    // manually advance the iter.
-    assert.sameValue(iter.following(), false);
-    assert.sameValue(iter.breakType, v.breakType);
-    assert.sameValue(text.substring(prev, iter.index), v.segment);
-    prev = iter.index;
-  }
-  assert(iter.following());
-  assert.sameValue(text, segments.join(''));
-}

test/intl402/Segmenter/prototype/segment/segment-line-next.js

-// Copyright 2018 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-esid: sec-Intl.Segmenter.prototype.segment
-description: Verifies the behavior for the "segment" function of the Segmenter prototype object.
-info: |
-    Intl.Segmenter.prototype.segment( string )
-features: [Intl.Segmenter]
----*/
-
-const seg = new Intl.Segmenter([], {granularity: "line"})
-for (const text of [
-    "Hello world!", // English
-    " Hello world! ",  // English with space before/after
-    " Hello world? Foo bar!", // English
-    "Jedovatou mambu objevila žena v zahrádkářské kolonii.", // Czech
-    "Việt Nam: Nhất thể hóa sẽ khác Trung Quốc?",  // Vietnamese
-    "Σοβαρές ενστάσεις Κομισιόν για τον προϋπολογισμό της Ιταλίας", // Greek
-    "Решение Индии о покупке российских С-400 расценили как вызов США",  // Russian
-    "הרופא שהציל נשים והנערה ששועבדה ע",  // Hebrew,
-    "ترامب للملك سلمان: أنا جاد للغاية.. عليك دفع المزيد", // Arabic
-    "भारत की एस 400 मिसाइल के मुकाबले पाक की थाड, जानें कौन कितना ताकतवर",  //  Hindi
-    "ரெட் அலர்ட் எச்சரிக்கை; புதுச்சேரியில் நாளை அரசு விடுமுறை!", // Tamil
-    "'ఉత్తర్వులు అందే వరకు ఓటర్ల తుది జాబితాను వెబ్‌సైట్లో పెట్టవద్దు'", // Telugu
-    "台北》抹黑柯P失敗？朱學恒酸：姚文智氣pupu嗆大老闆", // Chinese
-    "วัดไทรตีระฆังเบาลงช่วงเข้าพรรษา เจ้าอาวาสเผยคนร้องเรียนรับผลกรรมแล้ว",  // Thai
-    "九州北部の一部が暴風域に入りました(日直予報士 2018年10月06日) - 日本気象協会 tenki.jp",  // Japanese
-    "법원 “다스 지분 처분권·수익권 모두 MB가 보유”", // Korean
-    ]) {
-  const iter = seg.segment(text);
-  let segments = [];
-  let oldPos = -1;
-  for (let result = iter.next(); !result.done; result = iter.next()) {
-    const v = result.value;
-    assert(["soft", "hard"].includes(iter.breakType), iter.breakType);
-    assert.sameValue("string", typeof v.segment);
-    assert(v.segment.length > 0);
-    segments.push(v.segment);
-    assert.sameValue(typeof v.index, "number");
-    assert(oldPos < v.index);
-    oldPos = v.index;
-  }
-  assert.sameValue(text, segments.join(''));
-}

test/intl402/Segmenter/prototype/segment/segment-line-preceding.js

-// Copyright 2018 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-esid: sec-Intl.Segmenter.prototype.segment
-description: Verifies the behavior for the "segment" function of the Segmenter prototype object.
-info: |
-    Intl.Segmenter.prototype.segment( string )
-features: [Intl.Segmenter]
----*/
-
-const seg = new Intl.Segmenter([], {granularity: "line"})
-for (const text of [
-    "Hello world!", // English
-    " Hello world! ",  // English with space before/after
-    " Hello world? Foo bar!", // English
-    "Jedovatou mambu objevila žena v zahrádkářské kolonii.", // Czech
-    "Việt Nam: Nhất thể hóa sẽ khác Trung Quốc?",  // Vietnamese
-    "Σοβαρές ενστάσεις Κομισιόν για τον προϋπολογισμό της Ιταλίας", // Greek
-    "Решение Индии о покупке российских С-400 расценили как вызов США",  // Russian
-    "הרופא שהציל נשים והנערה ששועבדה ע",  // Hebrew,
-    "ترامب للملك سلمان: أنا جاد للغاية.. عليك دفع المزيد", // Arabic
-    "भारत की एस 400 मिसाइल के मुकाबले पाक की थाड, जानें कौन कितना ताकतवर",  //  Hindi
-    "ரெட் அலர்ட் எச்சரிக்கை; புதுச்சேரியில் நாளை அரசு விடுமுறை!", // Tamil
-    "'ఉత్తర్వులు అందే వరకు ఓటర్ల తుది జాబితాను వెబ్‌సైట్లో పెట్టవద్దు'", // Telugu
-    "台北》抹黑柯P失敗？朱學恒酸：姚文智氣pupu嗆大老闆", // Chinese
-    "วัดไทรตีระฆังเบาลงช่วงเข้าพรรษา เจ้าอาวาสเผยคนร้องเรียนรับผลกรรมแล้ว",  // Thai
-    "九州北部の一部が暴風域に入りました(日直予報士 2018年10月06日) - 日本気象協会 tenki.jp",  // Japanese
-    "법원 “다스 지분 처분권·수익권 모두 MB가 보유”", // Korean
-    ]) {
-  const iter = seg.segment(text);
-  let prev = text.length;
-  let segments = [];
-  iter.preceding(prev)
-  assert(["soft", "hard"].includes(iter.breakType), iter.breakType);
-  assert(iter.index >= 0);
-  assert(iter.index < prev);
-  segments.push(text.substring(iter.index, prev));
-  prev = iter.index;
-  while (!iter.preceding()) {
-    assert(["soft", "hard"].includes(iter.breakType), iter.breakType);
-    assert(iter.index >= 0);
-    assert(iter.index <= text.length);
-    assert(iter.index < prev);
-    segments.push(text.substring(iter.index, prev));
-    prev = iter.index;
-  }
-  assert.sameValue(text, segments.reverse().join(""));
-}

test/intl402/Segmenter/prototype/segment/segment-line.js

-// Copyright 2018 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-esid: sec-Intl.Segmenter.prototype.segment
-description: Verifies the behavior for the "segment" function of the Segmenter prototype object.
-info: |
-    Intl.Segmenter.prototype.segment( string )
-features: [Intl.Segmenter]
----*/
-
-const seg = new Intl.Segmenter([], {granularity: "line"})
-for (const text of [
-    "Hello world!", // English
-    " Hello world! ",  // English with space before/after
-    " Hello world? Foo bar!", // English
-    "Jedovatou mambu objevila žena v zahrádkářské kolonii.", // Czech
-    "Việt Nam: Nhất thể hóa sẽ khác Trung Quốc?",  // Vietnamese
-    "Σοβαρές ενστάσεις Κομισιόν για τον προϋπολογισμό της Ιταλίας", // Greek
-    "Решение Индии о покупке российских С-400 расценили как вызов США",  // Russian
-    "הרופא שהציל נשים והנערה ששועבדה ע",  // Hebrew,
-    "ترامب للملك سلمان: أنا جاد للغاية.. عليك دفع المزيد", // Arabic
-    "भारत की एस 400 मिसाइल के मुकाबले पाक की थाड, जानें कौन कितना ताकतवर",  //  Hindi
-    "ரெட் அலர்ட் எச்சரிக்கை; புதுச்சேரியில் நாளை அரசு விடுமுறை!", // Tamil
-    "'ఉత్తర్వులు అందే వరకు ఓటర్ల తుది జాబితాను వెబ్‌సైట్లో పెట్టవద్దు'", // Telugu
-    "台北》抹黑柯P失敗？朱學恒酸：姚文智氣pupu嗆大老闆", // Chinese
-    "วัดไทรตีระฆังเบาลงช่วงเข้าพรรษา เจ้าอาวาสเผยคนร้องเรียนรับผลกรรมแล้ว",  // Thai
-    "九州北部の一部が暴風域に入りました(日直予報士 2018年10月06日) - 日本気象協会 tenki.jp",  // Japanese
-    "법원 “다스 지분 처분권·수익권 모두 MB가 보유”", // Korean
-    ]) {
-  const iter = seg.segment(text);
-  assert.sameValue(undefined, iter.breakType);
-  assert.sameValue(0, iter.index);
-}