Skip the UI tests on Travis by directly editing BGMApp's Xcode scheme.

Skipping them by overriding runTest didn't work and this is the only other way
I can think of. xcodebuild's -skip-testing option would work, but only with
recent versions of Xcode.

.travis.yml

@@ -48,6 +48,8 @@ script:
   - ls -la "/Library/LaunchDaemons/com.bearisdriving.BGM.XPCHelper.plist"
 # Close BGMApp (which the install script opened).
   - osascript -e 'tell application "Background Music" to quit'
+# Skip the UI tests until Travis has support for them.
+  - BGMApp/BGMAppTests/UITests/travis-skip.py
 # Run the tests.
   - xcodebuild -workspace BGM.xcworkspace -scheme 'Background Music Device' test
   - xcodebuild -workspace BGM.xcworkspace -scheme 'Background Music' test

BGMApp/BGMAppTests/UITests/BGMAppUITests.m

@@ -46,19 +46,6 @@
     XCUIElement* prefs;
 }
 
-- (void) runTest {
-    // We can't run the tests on Travis because Xcode needs permission to use the Accessibility API
-    // to control BGMApp. There's no way to set that up programmatically without disabling SIP and
-    // Travis doesn't support that.
-    //
-    // See https://github.com/travis-ci/travis-ci/issues/5819
-    if (NSProcessInfo.processInfo.environment[@"TRAVIS"]) {
-        NSLog(@"Skipping the UI tests because Travis CI doesn't support UI testing.");
-    } else {
-        [super runTest];
-    }
-}
-
 - (void) setUp {
     [super setUp];
     

BGMApp/BGMAppTests/UITests/travis-skip.py

@@ -0,0 +1,49 @@
+#!/usr/bin/python2.7
+
+# This file is part of Background Music.
+#
+# Background Music is free software: you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation, either version 2 of the
+# License, or (at your option) any later version.
+#
+# Background Music is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Background Music. If not, see <http://www.gnu.org/licenses/>.
+
+#
+# travis-skip.py
+# BGMAppUITests
+#
+# Copyright © 2017 Kyle Neideck
+#
+# Skip the UI tests in Travis builds because they aren't supported.
+#
+# We can't run the tests on Travis because Xcode needs permission to use the Accessibility API
+# to control BGMApp. There's no way to set that up programmatically without disabling SIP and
+# Travis doesn't support that.
+#
+# See https://github.com/travis-ci/travis-ci/issues/5819
+#
+# TODO: Figure out a better way to do this.
+#
+
+import xml.etree.ElementTree as ET
+
+SCHEME_FILE = "BGMApp/BGMApp.xcodeproj/xcshareddata/xcschemes/Background Music.xcscheme"
+UI_REF_XPATH = ".//BuildableReference[@BlueprintName='BGMAppUITests']/.."
+
+# Parse the Xcode scheme.
+tree = ET.parse(SCHEME_FILE)
+
+# Set the TestableReference for the UI tests to skipped.
+tree.getroot().findall(UI_REF_XPATH)[0].set("skipped", "YES")
+
+# Save the scheme.
+tree.write(SCHEME_FILE)
+
+