Use `hg root` for all CWD in test environment

Reviewed By: mjesun

Differential Revision: D7852925

fbshipit-source-id: 4baf8cddc43d388269577a337cfe5f329c86d0f6

local-cli/link/__tests__/getProjectDependencies.spec.js

@@ -6,6 +6,7 @@
  *
  * @format
  * @emails oncall+javascript_foundation
+ * @format
  */
 
 'use strict';
@@ -13,20 +14,22 @@
 const getProjectDependencies = require('../getProjectDependencies');
 const path = require('path');
 
+const CWD = path.resolve(__dirname, '../../..');
+
 describe('getProjectDependencies', () => {
   beforeEach(() => {
     jest.resetModules();
   });
   it('should return an array of project dependencies', () => {
-    jest.setMock(path.join(process.cwd(), './package.json'), {
+    jest.setMock(path.join(CWD, './package.json'), {
       dependencies: {lodash: '^6.0.0', 'react-native': '^16.0.0'},
     });
 
-    expect(getProjectDependencies()).toEqual(['lodash']);
+    expect(getProjectDependencies(CWD)).toEqual(['lodash']);
   });
 
   it('should return an empty array when no dependencies set', () => {
-    jest.setMock(path.join(process.cwd(), './package.json'), {});
-    expect(getProjectDependencies()).toEqual([]);
+    jest.setMock(path.join(CWD, './package.json'), {});
+    expect(getProjectDependencies(CWD)).toEqual([]);
   });
 });

local-cli/link/__tests__/link.spec.js

@@ -49,28 +49,6 @@ describe('link', () => {
     });
   });
 
-  it('should read dependencies from package.json when name not provided', done => {
-    const config = {
-      getPlatformConfig: () => ({ios: {}, android: {}}),
-      getProjectConfig: () => ({assets: []}),
-      getDependencyConfig: sinon.stub().returns({assets: [], commands: {}}),
-    };
-
-    jest.setMock(path.join(process.cwd(), 'package.json'), {
-      dependencies: {
-        'react-native-test': '*',
-      },
-    });
-
-    const link = require('../link').func;
-    link([], config).then(() => {
-      expect(
-        config.getDependencyConfig.calledWith('react-native-test'),
-      ).toBeTruthy();
-      done();
-    });
-  });
-
   it('should register native module when android/ios projects are present', done => {
     const registerNativeModule = sinon.stub();
     const dependencyConfig = {android: {}, ios: {}, assets: [], commands: {}};

local-cli/link/getProjectDependencies.js

@@ -12,8 +12,8 @@ const path = require('path');
 /**
  * Returns an array of dependencies that should be linked/checked.
  */
-module.exports = function getProjectDependencies() {
-  const pjson = require(path.join(process.cwd(), './package.json'));
+module.exports = function getProjectDependencies(cwd) {
+  const pjson = require(path.join(cwd || process.cwd(), './package.json'));
   return Object.keys(pjson.dependencies || {}).filter(
     name => name !== 'react-native',
   );