tests/utils/utils.sh

   1 #!/bin/bash
   2
   3 # Copyright (c) 2019 Michael Jeanson <mjeanson@efficios.com>
   4 # Copyright (C) 2019 Philippe Proulx <pproulx@efficios.com>
   5 #
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; under version 2 of the License.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License along
  16 # with this program; if not, write to the Free Software Foundation, Inc.,
  17 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18
  19 # This file is meant to be sourced at the start of shell script-based tests.
  20
  21
  22 # Error out when encountering an undefined variable
  23 set -u
  24
  25 scriptdir="$(dirname "${BASH_SOURCE[0]}")"
  26
  27 # The OS on which we are running. See [1] for possible values of 'uname -s'.
  28 # We do a bit of translation to ease our life down the road for comparison.
  29 # Export it so that called executables can use it.
  30 # [1] https://en.wikipedia.org/wiki/Uname#Examples
  31 if [ "x${BT_OS_TYPE:-}" = "x" ]; then
  32         BT_OS_TYPE="$(uname -s)"
  33         case "$BT_OS_TYPE" in
  34         MINGW*)
  35                 BT_OS_TYPE="mingw"
  36                 ;;
  37         Darwin)
  38                 BT_OS_TYPE="darwin"
  39                 ;;
  40         Linux)
  41                 BT_OS_TYPE="linux"
  42                 ;;
  43         *)
  44                 BT_OS_TYPE="unsupported"
  45                 ;;
  46         esac
  47 fi
  48 export BT_OS_TYPE
  49
  50 # Allow overriding the source and build directories
  51 if [ "x${BT_TESTS_SRCDIR:-}" = "x" ]; then
  52         BT_TESTS_SRCDIR="$scriptdir/.."
  53 fi
  54 export BT_TESTS_SRCDIR
  55
  56 if [ "x${BT_TESTS_BUILDDIR:-}" = "x" ]; then
  57         BT_TESTS_BUILDDIR="$scriptdir/.."
  58 fi
  59 export BT_TESTS_BUILDDIR
  60
  61 # By default, it will not source tap.sh.  If you to tap output directly from
  62 # the test script, define the 'SH_TAP' variable to '1' before sourcing this
  63 # script.
  64 if [ "x${SH_TAP:-}" = x1 ]; then
  65         . "${BT_TESTS_SRCDIR}/utils/tap/tap.sh"
  66 fi
  67
  68 # Allow overriding the babeltrace2 executables
  69 if [ "x${BT_TESTS_BT2_BIN:-}" = "x" ]; then
  70         BT_TESTS_BT2_BIN="$BT_TESTS_BUILDDIR/../src/cli/babeltrace2"
  71         if [ "$BT_OS_TYPE" = "mingw" ]; then
  72                 BT_TESTS_BT2_BIN="${BT_TESTS_BT2_BIN}.exe"
  73         fi
  74 fi
  75 export BT_TESTS_BT2_BIN
  76
  77 if [ "x${BT_TESTS_BT2LOG_BIN:-}" = "x" ]; then
  78         BT_TESTS_BT2LOG_BIN="$BT_TESTS_BUILDDIR/../src/cli/babeltrace2-log"
  79         if [ "$BT_OS_TYPE" = "mingw" ]; then
  80                 BT_TESTS_BT2LOG_BIN="${BT_TESTS_BT2LOG_BIN}.exe"
  81         fi
  82 fi
  83 export BT_TESTS_BT2LOG_BIN
  84
  85 # TODO: Remove when bindings/python/bt2/test_plugin.py is fixed
  86 BT_PLUGINS_PATH="${BT_TESTS_BUILDDIR}/../src/plugins"
  87
  88 # Allow overriding the babeltrace2 plugin path
  89 if [ "x${BT_TESTS_BABELTRACE_PLUGIN_PATH:-}" = "x" ]; then
  90         BT_TESTS_BABELTRACE_PLUGIN_PATH="${BT_PLUGINS_PATH}/ctf:${BT_PLUGINS_PATH}/utils:${BT_PLUGINS_PATH}/text"
  91 fi
  92
  93 # Allow overriding the babeltrace2 executables
  94 if [ "x${BT_TESTS_PYTHONPATH:-}" = "x" ]; then
  95         BT_TESTS_PYTHONPATH="${BT_TESTS_BUILDDIR}/../src/bindings/python/bt2/build/build_lib"
  96 fi
  97
  98
  99 ### External Tools ###
 100 if [ "x${BT_TESTS_AWK_BIN:-}" = "x" ]; then
 101         BT_TESTS_AWK_BIN="awk"
 102 fi
 103 export BT_TESTS_AWK_BIN
 104
 105 if [ "x${BT_TESTS_GREP_BIN:-}" = "x" ]; then
 106         BT_TESTS_GREP_BIN="grep"
 107 fi
 108 export BT_TESTS_GREP_BIN
 109
 110 if [ "x${BT_TESTS_PYTHON_BIN:-}" = "x" ]; then
 111         BT_TESTS_PYTHON_BIN="python3"
 112 fi
 113 export BT_TESTS_PYTHON_BIN
 114
 115 if [ "x${BT_TESTS_SED_BIN:-}" = "x" ]; then
 116         BT_TESTS_SED_BIN="sed"
 117 fi
 118 export BT_TESTS_SED_BIN
 119
 120
 121 # Data files path
 122 BT_TESTS_DATADIR="${BT_TESTS_SRCDIR}/data"
 123 BT_CTF_TRACES_PATH="${BT_TESTS_DATADIR}/ctf-traces"
 124 BT_DEBUG_INFO_PATH="${BT_TESTS_DATADIR}/debug-info"
 125
 126
 127 ### Diff Functions ###
 128
 129 # Checks the difference between the content of the file with path "$1"
 130 # and the output of the CLI when called with the rest of arguments
 131 # to this function.
 132 #
 133 # Returns 0 if there's no difference, and 1 if there is, also printing
 134 # said difference to the standard error.
 135 bt_diff_cli() {
 136         local expected_file="$1"
 137         shift 1
 138         local args=("$@")
 139
 140         local temp_output_file
 141         local temp_diff
 142         local ret=0
 143
 144         temp_output_file="$(mktemp)"
 145         temp_diff="$(mktemp)"
 146
 147         # Run the CLI to get a detailed file. Strip any \r present due to
 148         # Windows (\n -> \r\n). "diff --string-trailing-cr" is not used since it
 149         # is not present on Solaris.
 150         "$BT_TESTS_BT2_BIN" "${args[@]}" | tr -d "\r" > "$temp_output_file"
 151
 152         # Compare output with expected output
 153         if ! diff -u "$temp_output_file" "$expected_file" 2>/dev/null >"$temp_diff"; then
 154                 echo "ERROR: for '${args[*]}': actual and expected outputs differ:" >&2
 155                 cat "$temp_diff" >&2
 156                 ret=1
 157         fi
 158
 159         rm -f "$temp_output_file" "$temp_diff"
 160
 161         return $ret
 162 }
 163
 164 # Checks the difference between the content of the file with path "$1"
 165 # and the output of the CLI when called on the directory path "$2" with
 166 # the arguments '-c sink.text.details' and the rest of the arguments to
 167 # this function.
 168 #
 169 # Returns 0 if there's no difference, and 1 if there is, also printing
 170 # said difference to the standard error.
 171 bt_diff_details_ctf_single() {
 172         local expected_file="$1"
 173         local trace_dir="$2"
 174         shift 2
 175         local extra_details_args=("$@")
 176
 177         # Compare using the CLI with `sink.text.details`
 178         bt_diff_cli "$expected_file" "$trace_dir" "-c" "sink.text.details" "${extra_details_args[@]}"
 179 }
 180
 181 # Calls bt_diff_details_ctf_single(), except that "$1" is the path to a
 182 # program which generates the CTF trace to compare to. The program "$1"
 183 # receives the path to a temporary, empty directory where to write the
 184 # CTF trace as its first argument.
 185 bt_diff_details_ctf_gen_single() {
 186         local ctf_gen_prog_path="$1"
 187         local expected_file="$2"
 188         shift 2
 189         local extra_details_args=("$@")
 190
 191         local temp_trace_dir
 192         local ret
 193
 194         temp_trace_dir="$(mktemp -d)"
 195
 196         # Run the CTF trace generator program to get a CTF trace
 197         if ! "$ctf_gen_prog_path" "$temp_trace_dir" 2>/dev/null; then
 198                 echo "ERROR: \"$ctf_gen_prog_path\" \"$temp_trace_dir\" failed" >&2
 199                 rm -rf "$temp_trace_dir"
 200                 return 1
 201         fi
 202
 203         # Compare using the CLI with `sink.text.details`
 204         bt_diff_details_ctf_single "$expected_file" "$temp_trace_dir" "${extra_details_args[@]}"
 205         ret=$?
 206         rm -rf "$temp_trace_dir"
 207         return $ret
 208 }
 209
 210
 211 ### Functions ###
 212
 213 check_coverage() {
 214         coverage run "$@"
 215 }
 216
 217 # Execute a shell command in the appropriate environment to have access to the
 218 # bt2 Python bindings.
 219 run_python_bt2() {
 220         local lib_search_var
 221         local lib_search_path
 222
 223         local python_provider_path="${BT_TESTS_BUILDDIR}/../src/python-plugin-provider/.libs"
 224         local main_lib_path="${BT_TESTS_BUILDDIR}/../src/lib/.libs"
 225
 226         # Set the library search path so the python interpreter can load libbabeltrace2
 227         if [ "$BT_OS_TYPE" = "mingw" ]; then
 228                 lib_search_var="PATH"
 229                 lib_search_path="${python_provider_path}:${main_lib_path}:${PATH:-}"
 230         elif [ "$BT_OS_TYPE" = "darwin" ]; then
 231                 lib_search_var="DYLD_LIBRARY_PATH"
 232                 lib_search_path="${python_provider_path}:${main_lib_path}:${DYLD_LIBRARY_PATH:-}"
 233         else
 234                 lib_search_var="LD_LIBRARY_PATH"
 235                 lib_search_path="${python_provider_path}:${main_lib_path}:${LD_LIBRARY_PATH:-}"
 236         fi
 237
 238         env \
 239                 BABELTRACE_PYTHON_BT2_NO_TRACEBACK=1 \
 240                 BABELTRACE_PLUGIN_PATH="${BT_TESTS_BABELTRACE_PLUGIN_PATH}" \
 241                 BT_CTF_TRACES_PATH="${BT_CTF_TRACES_PATH}" \
 242                 BT_PLUGINS_PATH="${BT_PLUGINS_PATH}" \
 243                 PYTHONPATH="${BT_TESTS_PYTHONPATH}:${BT_TESTS_SRCDIR}/utils/python" \
 244                 "${lib_search_var}"="${lib_search_path}" \
 245                 "$@"
 246 }
 247
 248 # Set the environment and run python tests in the directory.
 249 #
 250 # $1 : The directory containing the python test scripts
 251 # $2 : The pattern to match python test script names (optional)
 252 run_python_bt2_test() {
 253         local test_dir="$1"
 254         local test_pattern="${2:-'*'}" # optional, if none default to "*"
 255
 256         local ret
 257         local test_runner_args=()
 258
 259         test_runner_args+=("$test_dir")
 260         if [ "x${test_pattern}" != "x" ]; then
 261                 test_runner_args+=("${test_pattern}")
 262         fi
 263
 264         if test "x${BT_TESTS_COVERAGE:-}" = "x1"; then
 265                 python_exec="check_coverage"
 266         else
 267                 python_exec="${BT_TESTS_PYTHON_BIN}"
 268         fi
 269
 270         run_python_bt2 \
 271                 "${python_exec}" \
 272                 "${BT_TESTS_SRCDIR}/utils/python/testrunner.py" \
 273                 --pattern "$test_pattern" \
 274                 "$test_dir" \
 275
 276         ret=$?
 277
 278         if test "x${BT_TESTS_COVERAGE_REPORT:-}" = "x1"; then
 279                 coverage report -m
 280         fi
 281
 282         if test "x${BT_TESTS_COVERAGE_HTML:-}" = "x1"; then
 283                 coverage html
 284         fi
 285
 286         return $ret
 287 }