#!/bin/bash
#
# Copyright 2016-present the Material Components for iOS authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

readonly SCRIPTS_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
readonly ROOT_DIR="$(dirname $SCRIPTS_DIR)"
readonly COVERAGE_OPTIONS="GCC_INSTRUMENT_PROGRAM_FLOW_ARCS=YES GCC_GENERATE_TEST_COVERAGE_FILES=YES -enableCodeCoverage YES"

# When run on Travis CI, this variable should be passed in
if [[ ! $DESTINATION ]]; then
  DESTINATION="platform=iOS Simulator,name=iPhone 7,OS=latest"
fi

# Given a path to an Xcode log file in $1, print a guess at what caused the
# failure.
function guess_failure() {
  if [[ $TRAVIS == "true" ]]; then
    tail -n 200 "$1"
  else
    grep --context=20 "The following build commands failed:" "$1"
  fi
}

if [[ $# -lt 1 ]]; then
  WORKSPACE_SCHEMES=$("$SCRIPTS_DIR"/xcode/list_all_xcode_schemes)
else
  WORKSPACE_SCHEMES=$*
fi

all_tests_ok=1
for workspace_scheme in $WORKSPACE_SCHEMES; do
  workspace=$(echo $workspace_scheme | cut -d: -f1)
  scheme=$(echo $workspace_scheme | cut -d: -f2)

  # Assume any scheme with the name "*Tests*" is a testing scheme.
  if [[ $scheme != *Tests* ]]; then
    continue
  fi
  echo $workspace $scheme
  log_file=$(dirname "$workspace")/"test_log_for_scheme_${scheme}.txt"
  options="-workspace $workspace -scheme $scheme"
  if xcodebuild test $options $COVERAGE_OPTIONS -destination "$DESTINATION" >"$log_file" 2>&1; then
    rm "$log_file"
  else
    all_tests_ok=0
    echo
    echo "Failed to test $scheme in $workspace."
    guess_failure "$log_file"
    echo "Log left in $log_file."
    echo "Continuing with next test..."
    echo
  fi
done

# If any test failed, exit with a failure exit status so continuous integration
# tools can react appropriately.
if [ "$all_tests_ok" -eq 1 ]; then
  exit 0
else
  exit 1
fi