1 files changed, 26 insertions, 0 deletions

diff --git a/config/jestEsbuildTransform.js b/config/jestEsbuildTransform.js
new file mode 100644
index 0000000..7c6a57c
--- /dev/null
+++ b/config/jestEsbuildTransform.js
@@ -0,0 +1,26 @@
+import { transform } from 'esbuild';
+
+import { node } from './buildConstants.js';
+
+export default {
+  /**
+   * @param {string} source
+   * @param {string} filePath
+   * @param {import('@jest/types').Config.GlobalConfig} jestConfig
+   * @return {Promise<import('@jest/types').TransformTypes.TransformResult>}
+   */
+  async processAsync(source, filePath) {
+    const { code } = await transform(source, {
+      loader: filePath.endsWith('tsx') ? 'tsx' : 'ts',
+      sourcefile: filePath,
+      format: 'esm',
+      target: node,
+      sourcemap: 'inline',
+    });
+    return {
+      code,
+      originalCode: source,
+      sourceMapPath: null,
+    };
+  },
+};