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      1 #!/bin/bash
      2 #
      3 # Copyright 2014 The Chromium Authors. All rights reserved.
      4 # Use of this source code is governed by a BSD-style license that can be
      5 # found in the LICENSE file.
      6 #
      7 # Hacky, primitive testing: This runs the style plugin for a set of input files
      8 # and compares the output with golden result files.
      9 
     10 E_BADARGS=65
     11 E_FAILEDTEST=1
     12 
     13 failed_any_test=
     14 
     15 # Prints usage information.
     16 usage() {
     17   echo "Usage: $(basename "${0}")" \
     18     "<Path to the llvm build dir, usually Release+Asserts>"
     19   echo ""
     20   echo "  Runs all the libBlinkGCPlugin unit tests"
     21   echo ""
     22 }
     23 
     24 # Runs a single test case.
     25 do_testcase() {
     26   local flags=""
     27   if [ -e "${3}" ]; then
     28     flags="$(cat "${3}")"
     29   fi
     30   local output="$("${CLANG_DIR}"/bin/clang -c -Wno-c++11-extensions \
     31       -Xclang -load -Xclang "${CLANG_DIR}"/lib/lib${LIBNAME}.${LIB} \
     32       -Xclang -add-plugin -Xclang blink-gc-plugin ${flags} ${1} 2>&1)"
     33   local json="${input%cpp}graph.json"
     34   if [ -f "$json" ]; then
     35     output="$(python ../process-graph.py -c ${json} 2>&1)"
     36   fi
     37   local diffout="$(echo "${output}" | diff - "${2}")"
     38   if [ "${diffout}" = "" ]; then
     39     echo "PASS: ${1}"
     40   else
     41     failed_any_test=yes
     42     echo "FAIL: ${1}"
     43     echo "Output of compiler:"
     44     echo "${output}"
     45     echo "Expected output:"
     46     cat "${2}"
     47     echo
     48   fi
     49 }
     50 
     51 # Validate input to the script.
     52 if [[ -z "${1}" ]]; then
     53   usage
     54   exit ${E_BADARGS}
     55 elif [[ ! -d "${1}" ]]; then
     56   echo "${1} is not a directory."
     57   usage
     58   exit ${E_BADARGS}
     59 else
     60   export CLANG_DIR="${PWD}/${1}"
     61   echo "Using clang directory ${CLANG_DIR}..."
     62 
     63   # The golden files assume that the cwd is this directory. To make the script
     64   # work no matter what the cwd is, explicitly cd to there.
     65   cd "$(dirname "${0}")"
     66 
     67   export LIBNAME=$(grep LIBRARYNAME ../Makefile | cut -d ' ' -f 3)
     68   if [ "$(uname -s)" = "Linux" ]; then
     69     export LIB=so
     70   elif [ "$(uname -s)" = "Darwin" ]; then
     71     export LIB=dylib
     72   fi
     73 fi
     74 
     75 for input in *.cpp; do
     76   do_testcase "${input}" "${input%cpp}txt" "${input%cpp}flags"
     77 done
     78 
     79 if [[ "${failed_any_test}" ]]; then
     80   exit ${E_FAILEDTEST}
     81 fi
     82