chore: add tests for getProjectConfig on iOS

packages/platform-ios/src/config/__tests__/getProjectConfig.test.ts

@@ -5,12 +5,48 @@
  * LICENSE file in the root directory of this source tree.
  *
  */
+import {projectConfig} from '../index';
 
 jest.mock('path');
 jest.mock('fs');
 
+const fs = require('fs');
+
 describe('ios::getProjectConfig', () => {
-  it.skip('returns `null` if Podfile was not found', () => {});
-  it.skip('returns an object with ios project configuration', () => {});
-  it.skip('returns correct configuration when multiple Podfile are present', () => {});
+  it('returns `null` if Podfile was not found', () => {
+    fs.__setMockFilesystem({});
+    expect(projectConfig('/', {})).toBe(null);
+  });
+  it('returns an object with ios project configuration', () => {
+    fs.__setMockFilesystem({
+      ios: {
+        Podfile: '',
+      },
+    });
+    expect(projectConfig('/', {})).toMatchInlineSnapshot(`
+      Object {
+        "sourceDir": "/ios",
+        "xcodeProject": null,
+      }
+    `);
+  });
+  it('returns correct configuration when multiple Podfile are present', () => {
+    fs.__setMockFilesystem({
+      sample: {
+        Podfile: '',
+      },
+      ios: {
+        Podfile: '',
+      },
+      example: {
+        Podfile: '',
+      },
+    });
+    expect(projectConfig('/', {})).toMatchInlineSnapshot(`
+      Object {
+        "sourceDir": "/ios",
+        "xcodeProject": null,
+      }
+    `);
+  });
 });