diff --git a/src/arguments/trailing-comma-multiple-args.case b/src/arguments/args-trailing-comma-multiple.case
similarity index 100%
rename from src/arguments/trailing-comma-multiple-args.case
rename to src/arguments/args-trailing-comma-multiple.case
diff --git a/src/arguments/trailing-comma-null.case b/src/arguments/args-trailing-comma-null.case
similarity index 100%
rename from src/arguments/trailing-comma-null.case
rename to src/arguments/args-trailing-comma-null.case
diff --git a/src/arguments/trailing-comma-single-args.case b/src/arguments/args-trailing-comma-single-args.case
similarity index 100%
rename from src/arguments/trailing-comma-single-args.case
rename to src/arguments/args-trailing-comma-single-args.case
diff --git a/src/arguments/trailing-comma-undefined.case b/src/arguments/args-trailing-comma-undefined.case
similarity index 100%
rename from src/arguments/trailing-comma-undefined.case
rename to src/arguments/args-trailing-comma-undefined.case
diff --git a/src/function-forms/trailing-comma-dflt-param.case b/src/function-forms/dflt-params-trailing-comma.case
similarity index 100%
rename from src/function-forms/trailing-comma-dflt-param.case
rename to src/function-forms/dflt-params-trailing-comma.case
diff --git a/src/function-forms/trailing-comma-multiple-param.case b/src/function-forms/params-trailing-comma-multiple.case
similarity index 100%
rename from src/function-forms/trailing-comma-multiple-param.case
rename to src/function-forms/params-trailing-comma-multiple.case
diff --git a/src/function-forms/trailing-comma-single-param.case b/src/function-forms/params-trailing-comma-single.case
similarity index 100%
rename from src/function-forms/trailing-comma-single-param.case
rename to src/function-forms/params-trailing-comma-single.case
diff --git a/src/function-forms/trailing-comma-rest-early-error.case b/src/function-forms/rest-params-trailing-comma-early-error.case
similarity index 100%
rename from src/function-forms/trailing-comma-rest-early-error.case
rename to src/function-forms/rest-params-trailing-comma-early-error.case