tools/clang/plugins/tests/test.sh

   1 #!/bin/bash
   2 #
   3 # Copyright (c) 2011 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 clang>" \
  19     "<path to plugin>"
  20   echo ""
  21   echo "  Runs all the libFindBadConstructs unit tests"
  22   echo ""
  23 }
  24
  25 # Runs a single test case.
  26 do_testcase() {
  27   local flags=""
  28   if [ -e "${3}" ]; then
  29     flags="$(cat "${3}")"
  30   fi
  31
  32   if [ "$(uname -s)" = "Darwin" ]; then
  33     flags="${flags} -isysroot $(xcrun --show-sdk-path) -stdlib=libstdc++"
  34   fi
  35
  36   flags="${flags} -Xclang -plugin-arg-find-bad-constructs \
  37       -Xclang with-ast-visitor"
  38
  39   local output="$("${CLANG_PATH}" -fsyntax-only -Wno-c++11-extensions \
  40       -Wno-inconsistent-missing-override \
  41       -Xclang -load -Xclang "${PLUGIN_PATH}" \
  42       -Xclang -add-plugin -Xclang find-bad-constructs ${flags} ${1} 2>&1)"
  43   local diffout="$(echo "${output}" | diff - "${2}")"
  44   if [ "${diffout}" = "" ]; then
  45     echo "PASS: ${1}"
  46   else
  47     failed_any_test=yes
  48     echo "FAIL: ${1}"
  49     echo "Output of compiler:"
  50     echo "${output}"
  51     cat > ${2}-actual << EOF
  52 ${output}
  53 EOF
  54
  55     echo "Expected output:"
  56     cat "${2}"
  57     echo
  58   fi
  59 }
  60
  61 # Validate input to the script.
  62 if [[ -z "${1}" ]]; then
  63   usage
  64   exit ${E_BADARGS}
  65 elif [[ -z "${2}" ]]; then
  66   usage
  67   exit ${E_BADARGS}
  68 elif [[ ! -x "${1}" ]]; then
  69   echo "${1} is not an executable"
  70   usage
  71   exit ${E_BADARGS}
  72 elif [[ ! -f "${2}" ]]; then
  73   echo "${2} could not be found"
  74   usage
  75   exit ${E_BADARGS}
  76 else
  77   export CLANG_PATH="${1}"
  78   export PLUGIN_PATH="${2}"
  79   echo "Using clang ${CLANG_PATH}..."
  80   echo "Using plugin ${PLUGIN_PATH}..."
  81
  82   # The golden files assume that the cwd is this directory. To make the script
  83   # work no matter what the cwd is, explicitly cd to there.
  84   cd "$(dirname "${0}")"
  85 fi
  86
  87 for input in *.cpp; do
  88   do_testcase "${input}" "${input%cpp}txt" "${input%cpp}flags"
  89 done
  90
  91 for input in *.c; do
  92   do_testcase "${input}" "${input%c}txt" "${input%c}flags"
  93 done
  94
  95 if [[ "${failed_any_test}" ]]; then
  96   exit ${E_FAILEDTEST}
  97 fi