Add end to end tests

e2e/__tests__/__snapshots__/test-todo.test.js.snap

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+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`shows error messages when called with invalid argument 1`] = `
+"FAIL __tests__/todo_non_string.test.js
+  ● Test suite failed to run
+
+    Invalid first argument: () => {}. Todo must be called with a string.
+
+      6 |  */
+      7 |
+    > 8 | it.todo(() => {});
+        |    ^
+      9 |
+
+      at packages/jest-jasmine2/build/jasmine/Env.js:480:15
+      at __tests__/todo_non_string.test.js:8:4
+
+"
+`;
+
+exports[`shows error messages when called with multiple arguments 1`] = `
+"FAIL __tests__/todo_multiple_args.test.js
+  ● Test suite failed to run
+
+    Todo must be called with only a description.
+
+      6 |  */
+      7 |
+    > 8 | it.todo('todo later', () => {});
+        |    ^
+      9 |
+
+      at packages/jest-jasmine2/build/jasmine/Env.js:476:15
+      at __tests__/todo_multiple_args.test.js:8:4
+
+"
+`;
+
+exports[`shows error messages when called with no arguments 1`] = `
+"FAIL __tests__/todo_no_args.test.js
+  ● Test suite failed to run
+
+    Todo must be called with only a description.
+
+      6 |  */
+      7 |
+    > 8 | it.todo();
+        |    ^
+      9 |
+
+      at packages/jest-jasmine2/build/jasmine/Env.js:476:15
+      at __tests__/todo_no_args.test.js:8:4
+
+"
+`;
+
+exports[`works with all statuses 1`] = `
+"FAIL __tests__/statuses.test.js
+  ✓ passes
+  ✕ fails
+  ✎ todo
+  ○ skipped 1 test
+
+  ● fails
+
+    expect(received).toBe(expected) // Object.is equality
+
+    Expected: 101
+    Received: 10
+
+      11 |
+      12 | it('fails', () => {
+    > 13 |   expect(10).toBe(101);
+         |              ^
+      14 | });
+      15 |
+      16 | it.skip('skips', () => {
+
+      at __tests__/statuses.test.js:13:14
+
+"
+`;

e2e/__tests__/test-todo.test.js

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+/**
+ * Copyright (c) 2018-present, Facebook, Inc. All rights reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow
+ */
+
+'use strict';
+
+const path = require('path');
+const runJest = require('../runJest');
+const {extractSummary} = require('../Utils');
+const dir = path.resolve(__dirname, '../test-todo');
+
+test('works with all statuses', () => {
+  const result = runJest(dir, ['statuses.test.js']);
+  expect(result.status).toBe(1);
+  const output = extractSummary(result.stderr)
+    .rest.split('\n')
+    .map(line => line.trimRight())
+    .join('\n');
+  expect(output).toMatchSnapshot();
+});
+
+test('shows error messages when called with no arguments', () => {
+  const result = runJest(dir, ['todo_no_args.test.js']);
+  expect(result.status).toBe(1);
+  const output = extractSummary(result.stderr)
+    .rest.split('\n')
+    .map(line => line.trimRight())
+    .join('\n');
+  expect(output).toMatchSnapshot();
+});
+
+test('shows error messages when called with multiple arguments', () => {
+  const result = runJest(dir, ['todo_multiple_args.test.js']);
+  expect(result.status).toBe(1);
+  const output = extractSummary(result.stderr)
+    .rest.split('\n')
+    .map(line => line.trimRight())
+    .join('\n');
+  expect(output).toMatchSnapshot();
+});
+
+test('shows error messages when called with invalid argument', () => {
+  const result = runJest(dir, ['todo_non_string.test.js']);
+  expect(result.status).toBe(1);
+  const output = extractSummary(result.stderr)
+    .rest.split('\n')
+    .map(line => line.trimRight())
+    .join('\n');
+  expect(output).toMatchSnapshot();
+});

e2e/test-todo/__tests__/statuses.test.js

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+/**
+ * Copyright (c) 2018-present, Facebook, Inc. All rights reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+it('passes', () => {
+  expect(10).toBe(10);
+});
+
+it('fails', () => {
+  expect(10).toBe(101);
+});
+
+it.skip('skips', () => {
+  expect(10).toBe(101);
+});
+
+it.todo('todo');

e2e/test-todo/__tests__/todo_multiple_args.test.js

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+/**
+ * Copyright (c) 2018-present, Facebook, Inc. All rights reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+it.todo('todo later', () => {});

e2e/test-todo/__tests__/todo_no_args.test.js

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+/**
+ * Copyright (c) 2018-present, Facebook, Inc. All rights reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+it.todo();

e2e/test-todo/__tests__/todo_non_string.test.js

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+/**
+ * Copyright (c) 2018-present, Facebook, Inc. All rights reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+it.todo(() => {});

e2e/test-todo/package.json

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+{
+  "jest": {
+    "testEnvironment": "node"
+  }
+}