Allow xctests to embed themselves in their TEST_HOST for Xcode 7.3 support.

ios/web/ios_web_shell_tests.gyp

Index: ios/web/ios_web_shell_tests.gyp
diff --git a/ios/web/ios_web_shell_tests.gyp b/ios/web/ios_web_shell_tests.gyp
index 79c93e8bbefc0705df753455a88025b185efeb56..806c056c451bea44af2dc1437558d6af11e4c96d 100644
--- a/ios/web/ios_web_shell_tests.gyp
+++ b/ios/web/ios_web_shell_tests.gyp
@@ -14,6 +14,7 @@
         {
           'variables': {
             'test_host': 'ios_web_shell.app/ios_web_shell',
+            'test_host_name': 'ios_web_shell',
           },
           'target_name': 'ios_web_shell_test',
           'type': 'loadable_module',
@@ -27,7 +28,7 @@
           ],
           'xcode_settings': {
             'WRAPPER_EXTENSION': 'xctest',
-            'TEST_HOST': '<(test_host)',
+            'TEST_HOST': '$(CONFIGURATION_BUILD_DIR)/<(test_host)',
             'BUNDLE_LOADER': '$(TEST_HOST)',
             'conditions':[
               ['"<(GENERATOR)"!="xcode" or "<(GENERATOR_FLAVOR)"=="ninja"', {
@@ -46,6 +47,16 @@
               'XCTest.framework',
             ],
           },
+          'postbuilds': [
+            {
+              'postbuild_name': 'Copy xctest to TEST_HOST',
+              'action': [
+                'ditto',
+                '${BUILT_PRODUCTS_DIR}/ios_web_shell_test.xctest',

[baxley, 2016/04/14 21:48:49]

are there two copies of xctest to make sure it works on 7.3 and pre-7.3? Or is
it for some other reason?

If it's the former, would it make sense to have a bug to track removing this
one?

+                '${BUILT_PRODUCTS_DIR}/<(test_host_name).app/PlugIns/ios_web_shell_test.xctest',
+              ],
+            },
+          ],
         },
       ],
     }, { # GENERATOR == ninja or GENERATOR_FLAVOR == ninja