Reverted commit D3436833

Summary:
Some changes are required to this scripts in order to successfully run it on Sandcastle:

- the packager needs to be started before the test
- no xcpretty available, piping to anything else (e.g. `cat`) fails
Closes https://github.com/facebook/react-native/pull/8123

Differential Revision: D3436833

Pulled By: avaly

fbshipit-source-id: e284d6eaf370720b9a0f2468b114a596028f7107

scripts/objc-test.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-set -ex
+set -e
 
 SCRIPTS=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
 ROOT=$(dirname $SCRIPTS)
@@ -16,17 +16,9 @@ function cleanup {
     WATCHMAN_LOGS=/usr/local/Cellar/watchman/3.1/var/run/watchman/$USER.log
     [ -f $WATCHMAN_LOGS ] && cat $WATCHMAN_LOGS
   fi
-  [ $SERVER_PID ] && kill -9 $SERVER_PID
 }
 trap cleanup EXIT
 
-# Run the packager process directly
-node ./local-cli/cli.js start &
-SERVER_PID=$!
-
-XCODE_PROJECT="Examples/UIExplorer/UIExplorer.xcodeproj"
-XCODE_SCHEME="UIExplorer"
-XCODE_SDK="iphonesimulator"
 if [ -z "$XCODE_DESTINATION" ]; then
   XCODE_DESTINATION="platform=iOS Simulator,name=iPhone 5,OS=9.3"
 fi
@@ -35,22 +27,17 @@ fi
 set +e
 OUTPUT_TOOL=$(which xcpretty)
 set -e
+if [ -z "$OUTPUT_TOOL" ]; then
+  OUTPUT_TOOL="sed"
+fi
 
 # 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 && exit ${PIPESTATUS[0]}
-fi
+xcodebuild \
+  -project Examples/UIExplorer/UIExplorer.xcodeproj \
+  -scheme UIExplorer \
+  -sdk iphonesimulator \
+  -destination "$XCODE_DESTINATION" \
+  test \
+  | $OUTPUT_TOOL && exit ${PIPESTATUS[0]}