chore: created tests for broken feature

Author: nmu-bouharri

tests/FakeClasses/StringBackedEnumWithSingleQuotes.php

@@ -0,0 +1,9 @@
+<?php
+
+namespace Spatie\TypeScriptTransformer\Tests\FakeClasses;
+
+enum StringBackedEnumWithSingleQuotes: string
+{
+    case NO_QUOTE = 'no quote';
+    case HAS_QUOTE = 'has quote \'';
+}

tests/Transformers/EnumTransformerTest.php

@@ -11,6 +11,7 @@
 use ReflectionClass;
 use Spatie\TypeScriptTransformer\Tests\FakeClasses\IntBackedEnum;
 use Spatie\TypeScriptTransformer\Tests\FakeClasses\StringBackedEnum;
+use Spatie\TypeScriptTransformer\Tests\FakeClasses\StringBackedEnumWithSingleQuotes;
 use Spatie\TypeScriptTransformer\Transformers\EnumTransformer;
 use Spatie\TypeScriptTransformer\TypeScriptTransformerConfig;
 use UnitEnum;
@@ -82,7 +83,7 @@
     assertEquals('type', $type->keyword);
 });
 
-it('can transform a backed enum with integers into an enm', function () {
+it('can transform a backed enum with integers into an enum', function () {
     $transformer = new EnumTransformer(
         TypeScriptTransformerConfig::create()->transformToNativeEnums(true)
     );
@@ -113,3 +114,35 @@
     assertFalse($type->isInline);
     assertEquals('type', $type->keyword);
 });
+
+it('can transform a backed enum with strings with single-quotes into a enum', function () {
+    $transformer = new EnumTransformer(
+        TypeScriptTransformerConfig::create()->transformToNativeEnums(true)
+    );
+
+    $type = $transformer->transform(
+        new ReflectionClass(StringBackedEnumWithSingleQuotes::class),
+        'Enum'
+    );
+
+    assertEquals("'NO_QUOTE' = 'no quote', 'HAS_QUOTE' = 'has quote \''", $type->transformed);
+    assertTrue($type->missingSymbols->isEmpty());
+    assertFalse($type->isInline);
+    assertEquals('enum', $type->keyword);
+});
+
+it('can transform a backed enum with strings with single-quotes into a union', function () {
+    $transformer = new EnumTransformer(
+        TypeScriptTransformerConfig::create()->transformToNativeEnums(false)
+    );
+
+    $type = $transformer->transform(
+        new ReflectionClass(StringBackedEnumWithSingleQuotes::class),
+        'Enum'
+    );
+
+    assertEquals("'no quote' | 'has quote \''", $type->transformed);
+    assertTrue($type->missingSymbols->isEmpty());
+    assertFalse($type->isInline);
+    assertEquals('type', $type->keyword);
+});