handle target being .

Author: SimenB

packages/jest-resolve/src/__tests__/resolve.test.ts

@@ -162,11 +162,13 @@ describe('resolveModule', () => {
       extensions: ['.js'],
     } as ResolverConfig);
     const mocksDirectory = path.resolve(__dirname, '../__mocks__');
-    const resolved = resolver.resolveModule(
-      path.join(mocksDirectory, 'foo/foo.js'),
-      './',
-    );
-    expect(resolved).toBe(path.join(mocksDirectory, 'foo/index.js'));
+    const fooSlashFoo = path.join(mocksDirectory, 'foo/foo.js');
+    const fooSlashIndex = path.join(mocksDirectory, 'foo/index.js');
+
+    const resolvedWithSlash = resolver.resolveModule(fooSlashFoo, './');
+    const resolvedWithDot = resolver.resolveModule(fooSlashFoo, '.');
+    expect(resolvedWithSlash).toBe(fooSlashIndex);
+    expect(resolvedWithSlash).toBe(resolvedWithDot);
   });
 });
 

packages/jest-resolve/src/defaultResolver.ts

@@ -69,7 +69,7 @@ function resolveSync(
   if (REGEX_RELATIVE_IMPORT.test(target)) {
     // resolve relative import
     let resolveTarget = path.resolve(basedir, target);
-    if (target === '..' || target.endsWith('/')) {
+    if (target === '.' || target === '..' || target.endsWith('/')) {
       resolveTarget += '/';
     }
     const result = tryResolve(resolveTarget);