fix(testing): add support for jest.config.js (#229)

* fix(testing): add support for jest.config.js * Move jest config to paths * specify .js extension
jaredpalmer · Oct 14, 2019 · 22c2416 · 22c2416
1 parent b86f715
commit 22c2416
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Showing 2 changed files with 14 additions and 5 deletions.
diff --git a/src/constants.ts b/src/constants.ts
@@ -9,4 +9,5 @@ export const paths = {
   appErrors: resolveApp('errors'),
   appDist: resolveApp('dist'),
   appConfig: resolveApp('tsdx.config.js'),
+  jestConfig: resolveApp('jest.config.js'),
 };
diff --git a/src/index.ts b/src/index.ts
@@ -481,15 +481,23 @@ prog
     });
 
     const argv = process.argv.slice(2);
+    let jestConfig = {
+      ...createJestConfig(
+        relativePath => path.resolve(__dirname, '..', relativePath),
+        paths.appRoot
+      ),
+      ...appPackageJson.jest,
+    };
+    try {
+      // Allow overriding with jest.config
+      const jestConfigContents = require(paths.jestConfig);
+      jestConfig = { ...jestConfig, ...jestConfigContents };
+    } catch {}
 
     argv.push(
       '--config',
       JSON.stringify({
-        ...createJestConfig(
-          relativePath => path.resolve(__dirname, '..', relativePath),
-          paths.appRoot
-        ),
-        ...appPackageJson.jest,
+        ...jestConfig,
       })
     );