Add @flow to bunch of (mostly test-) files that trivially pass

Reviewed By: rafeca

Differential Revision: D6712326

fbshipit-source-id: 44ef8506664f92a34f8e3ca124bd6167a20fbade

packages/metro-core/src/Logger/__mocks__/chalk.js

@@ -7,6 +7,7 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @format
+ * @flow
  */
 'use strict';
 
@@ -27,7 +28,7 @@ mockColor.bgRed = function() {
 };
 
 module.exports = {
-  dim: s => s,
+  dim: <T>(s: T) => s, // (elaborate way of saying "any", fine for this case)
   magenta: mockColor,
   white: mockColor,
   blue: mockColor,

packages/metro-core/src/Logger/__tests__/Logger-test.js

@@ -11,6 +11,7 @@
  *
  * @format
  * @emails oncall+js_foundation
+ * @flow
  */
 'use strict';
 
@@ -24,10 +25,12 @@ describe('Logger', () => {
   const originalConsoleLog = console.log;
 
   beforeEach(() => {
+    // $FlowFixMe don't worry, state restored below
     console.log = jest.fn();
   });
 
   afterEach(() => {
+    // $FlowFixMe
     console.log = originalConsoleLog;
   });
 

packages/metro-source-map/src/Generator.js

@@ -173,7 +173,7 @@ class Generator {
    *
    * This is ~2.5x faster than calling `JSON.stringify(generator.toMap())`
    */
-  toString(file?: string, options: {excludeSource?: boolean}): string {
+  toString(file?: string, options?: {excludeSource?: boolean}): string {
     let content;
 
     if (options && options.excludeSource) {

packages/metro-source-map/src/__tests__/B64Builder-test.js

@@ -8,6 +8,7 @@
  *
  * @format
  * @emails oncall+js_foundation
+ * @flow
  */
 
 'use strict';
@@ -22,7 +23,7 @@ beforeEach(() => {
 it('exposes a fluent interface', () => {
   expect(builder.markLines(0)).toBe(builder);
   expect(builder.markLines(3)).toBe(builder);
-  expect(builder.startSegment()).toBe(builder);
+  expect(builder.startSegment(0)).toBe(builder);
   expect(builder.append(4)).toBe(builder);
 });
 

packages/metro-source-map/src/__tests__/Generator-test.js

@@ -8,6 +8,7 @@
  *
  * @format
  * @emails oncall+js_foundation
+ * @flow
  */
 
 'use strict';

packages/metro-source-map/src/__tests__/source-map-test.js

@@ -6,7 +6,7 @@
  * LICENSE file in the root directory of this source tree. An additional grant
  * of patent rights can be found in the PATENTS file in the same directory.
  *
- * @emails oncal+javascript_foundation
+ * @emails oncall+javascript_foundation
  * @flow
  * @format
  */

packages/metro/src/JSTransformer/worker/__tests__/constant-folding-test.js

@@ -8,6 +8,7 @@
  *
  * @emails oncall+javascript_foundation
  * @format
+ * @flow
  */
 'use strict';
 
@@ -25,6 +26,9 @@ const babelOptions = {
 };
 
 function normalize({code}) {
+  if (code === undefined || code === null) {
+    return 'FAIL';
+  }
   return babel.transform(code, babelOptions).code;
 }
 

packages/metro/src/ModuleGraph/__tests__/ModuleGraph-test.js

@@ -20,6 +20,7 @@ const FILE_TYPE = 'module';
 
 describe('build setup', () => {
   const buildSetup = ModuleGraph.createBuildSetup(graph, mds => {
+    // TODO: the .sort() function returns -1 1 or 0 for sorting, not boolean
     return [...mds].sort((l, r) => l.file.path > r.file.path);
   });
   const polyfillOptions = {getPolyfills: () => ['polyfill-a', 'polyfill-b']};

packages/metro/src/ModuleGraph/silent-console.js

@@ -7,6 +7,7 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @format
+ * @flow
  */
 'use strict';
 

packages/metro/src/Server/__tests__/MultipartResponse-test.js

@@ -8,6 +8,7 @@
  *
  * @format
  * @emails oncall+js_foundation
+ * @flow
  */
 'use strict';
 

packages/metro/src/__mocks__/debug.js

@@ -7,6 +7,7 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @format
+ * @flow
  */
 'use strict';
 

packages/metro/src/__tests__/index-test.js

@@ -8,6 +8,7 @@
  *
  * @format
  * @emails oncall+js_foundation
+ * @flow
  */
 'use strict';
 

packages/metro/src/integration_tests/basic_bundle/AssetRegistry.js

@@ -3,6 +3,7 @@
  * All rights reserved.
  *
  * @format
+ * @flow
  */
 
 'use strict';

packages/metro/src/integration_tests/basic_bundle/Bar.js

@@ -7,6 +7,7 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @format
+ * @flow
  */
 
 'use strict';

packages/metro/src/integration_tests/basic_bundle/Foo.js

@@ -7,6 +7,7 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @format
+ * @flow
  */
 
 'use strict';

packages/metro/src/integration_tests/basic_bundle/TestBundle.js

@@ -7,6 +7,7 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @format
+ * @flow
  */
 
 'use strict';

packages/metro/src/lib/__mocks__/declareOpts.js

@@ -7,12 +7,13 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @format
+ * @flow
  */
 
 'use strict';
 
-module.exports = function(declared) {
+module.exports = function(declared: Object) {
-  return function(opts) {
+  return function(opts: Object) {
     for (var p in declared) {
       if (opts[p] == null && declared[p].default != null) {
         opts[p] = declared[p].default;

packages/metro/src/lib/__tests__/BatchProcessor-test.js

@@ -8,6 +8,7 @@
  *
  * @format
  * @emails oncall+js_foundation
+ * @flow
  */
 
 'use strict';

packages/metro/src/lib/__tests__/addParamsToDefineCall-test.js

@@ -8,6 +8,7 @@
  *
  * @format
  * @emails oncall+js_foundation
+ * @flow
  */
 'use strict';
 

packages/metro/src/lib/__tests__/getMaxWorkers-test.js

@@ -8,6 +8,7 @@
  *
  * @format
  * @emails oncall+js_foundation
+ * @flow
  */
 
 'use strict';

packages/metro/src/lib/__tests__/getTransformCacheKeyFn-test.js

@@ -8,6 +8,7 @@
  *
  * @emails oncall+javascript_foundation
  * @format
+ * @flow
  */
 
 'use strict';

packages/metro/src/node-haste/DependencyGraph/assets/empty-module.js

@@ -7,4 +7,5 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @format
+ * @flow
  */

packages/metro/src/node-haste/__mocks__/graceful-fs.js

@@ -7,6 +7,7 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @format
+ * @flow
  */
 
 'use strict';

packages/metro/src/node-haste/__tests__/AssetResolutionCache-test.js

@@ -8,6 +8,7 @@
  *
  * @format
  * @emails oncall+js_foundation
+ * @flow
  */
 
 'use strict';

packages/metro/src/node-haste/lib/__tests__/AssetPaths-test.js

@@ -8,6 +8,7 @@
  *
  * @format
  * @emails oncall+js_foundation
+ * @flow
  */
 
 'use strict';

packages/metro/src/node-haste/lib/__tests__/MapWithDefaults-test.js

@@ -8,6 +8,7 @@
  *
  * @format
  * @emails oncall+js_foundation
+ * @flow
  */
 
 'use strict';

packages/metro/src/node-haste/lib/__tests__/parsePlatformFilePath-test.js

@@ -8,6 +8,7 @@
  *
  * @format
  * @emails oncall+js_foundation
+ * @flow
  */
 
 'use strict';

packages/metro/src/rn-cli.config.js

@@ -9,6 +9,7 @@
  * React Native CLI configuration file
  *
  * @format
+ * @flow
  */
 'use strict';
 

packages/metro/src/setupNodePolyfills.js

@@ -7,6 +7,7 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @format
+ * @flow
  */
 
 'use strict';

packages/metro/src/shared/output/__tests__/meta-test.js

@@ -8,6 +8,7 @@
  *
  * @format
  * @emails oncall+js_foundation
+ * @flow
  */
 'use strict';