fixup: ...but only sometimes

testing-library · May 15, 2024 · 5a1424f · 5a1424f
1 parent 8beb4db
commit 5a1424f
Showing 1 changed file with 10 additions and 1 deletion.
diff --git a/jest.config.js b/jest.config.js
@@ -1,7 +1,16 @@
+import { VERSION as SVELTE_VERSION } from 'svelte/compiler'
+
+const SVELTE_LEGACY_TRANSFORM_PATTERN = '^.+\\.svelte$'
+const SVELTE_MODERN_TRANSFORM_PATTERN = '^.+\\.svelte(?:\\.js)?$'
+const SVELTE_TRANSFORM_PATTERN =
+  SVELTE_VERSION >= '5'
+    ? SVELTE_MODERN_TRANSFORM_PATTERN
+    : SVELTE_LEGACY_TRANSFORM_PATTERN
+
 export default {
   testMatch: ['<rootDir>/src/__tests__/**/*.test.js'],
   transform: {
-    '^.+\\.svelte(?:\\.js)?$': ['svelte-jester'],
+    [SVELTE_TRANSFORM_PATTERN]: ['svelte-jester'],
   },
   moduleFileExtensions: ['js', 'svelte'],
   extensionsToTreatAsEsm: ['.svelte'],