Apple TV support 2: Xcode projects and CI (scripts/objc-test.sh)

Summary:
* Motivation *

Second PR for Apple TV support.

* Test plan *

Apple TV tests have been added to scripts/objc-test.sh
Closes https://github.com/facebook/react-native/pull/10227

Differential Revision: D3974064

Pulled By: javache

fbshipit-source-id: 36dffb4517efa489e40fa713a30655d1d76ef646

scripts/objc-test.sh

@@ -33,6 +33,35 @@ set +e
 OUTPUT_TOOL=$(which xcpretty)
 set -e
 
+# TODO: We use xcodebuild because xctool would stall when collecting info about
+# the tests before running them. Switch back when this issue with xctool has
+# been resolved.
+if [ -z "$OUTPUT_TOOL" ]; then
+  xcodebuild \
+    -project $XCODE_PROJECT \
+    -scheme $XCODE_SCHEME \
+    -sdk $XCODE_SDK \
+    -destination "$XCODE_DESTINATION" \
+    test
+else
+  xcodebuild \
+    -project $XCODE_PROJECT \
+    -scheme $XCODE_SCHEME \
+    -sdk $XCODE_SDK \
+    -destination "$XCODE_DESTINATION" \
+    test | $OUTPUT_TOOL 
+fi
+
+XCODE_PROJECT="Examples/UIExplorer/UIExplorer.xcodeproj"
+XCODE_SCHEME="UIExplorer-tvOS"
+XCODE_SDK="appletvsimulator"
+XCODE_DESTINATION="platform=tvOS Simulator,name=Apple TV 1080p,OS=9.2"
+
+# Support for environments without xcpretty installed
+set +e
+OUTPUT_TOOL=$(which xcpretty)
+set -e
+
 # TODO: We use xcodebuild because xctool would stall when collecting info about
 # the tests before running them. Switch back when this issue with xctool has
 # been resolved.
@@ -51,3 +80,4 @@ else
     -destination "$XCODE_DESTINATION" \
     test | $OUTPUT_TOOL && exit ${PIPESTATUS[0]}
 fi
+