[babeltrace.git] / tests / utils / utils.sh

#!/bin/bash

# Copyright (c) 2019 Michael Jeanson <mjeanson@efficios.com>
# Copyright (C) 2019 Philippe Proulx <pproulx@efficios.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; under version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

# This file is meant to be sourced at the start of shell script-based tests.


# Error out when encountering an undefined variable
set -u

# If "readlink -f" is available, get a resolved absolute path to the
# tests source dir, otherwise make do with a relative path.
scriptdir="$(dirname "${BASH_SOURCE[0]}")"
if readlink -f "." >/dev/null 2>&1; then
	testsdir=$(readlink -f "$scriptdir/..")
else
	testsdir="$scriptdir/.."
fi

# The OS on which we are running. See [1] for possible values of 'uname -s'.
# We do a bit of translation to ease our life down the road for comparison.
# Export it so that called executables can use it.
# [1] https://en.wikipedia.org/wiki/Uname#Examples
if [ "x${BT_OS_TYPE:-}" = "x" ]; then
	BT_OS_TYPE="$(uname -s)"
	case "$BT_OS_TYPE" in
	MINGW*)
		BT_OS_TYPE="mingw"
		;;
	Darwin)
		BT_OS_TYPE="darwin"
		;;
	Linux)
		BT_OS_TYPE="linux"
		;;
	CYGWIN*)
		BT_OS_TYPE="cygwin"
		;;
	*)
		BT_OS_TYPE="unsupported"
		;;
	esac
fi
export BT_OS_TYPE

# Allow overriding the source and build directories
if [ "x${BT_TESTS_SRCDIR:-}" = "x" ]; then
	BT_TESTS_SRCDIR="$testsdir"
fi
export BT_TESTS_SRCDIR

if [ "x${BT_TESTS_BUILDDIR:-}" = "x" ]; then
	BT_TESTS_BUILDDIR="$testsdir"
fi
export BT_TESTS_BUILDDIR

# By default, it will not source tap.sh.  If you to tap output directly from
# the test script, define the 'SH_TAP' variable to '1' before sourcing this
# script.
if [ "x${SH_TAP:-}" = x1 ]; then
	# shellcheck source=./tap/tap.sh
	. "${BT_TESTS_SRCDIR}/utils/tap/tap.sh"
fi

# Allow overriding the babeltrace2 executables
if [ "x${BT_TESTS_BT2_BIN:-}" = "x" ]; then
	BT_TESTS_BT2_BIN="$BT_TESTS_BUILDDIR/../src/cli/babeltrace2"
	if [ "$BT_OS_TYPE" = "mingw" ]; then
		BT_TESTS_BT2_BIN="${BT_TESTS_BT2_BIN}.exe"
	fi
fi
export BT_TESTS_BT2_BIN

# TODO: Remove when bindings/python/bt2/test_plugin.py is fixed
BT_PLUGINS_PATH="${BT_TESTS_BUILDDIR}/../src/plugins"

# Allow overriding the babeltrace2 plugin path
if [ "x${BT_TESTS_BABELTRACE_PLUGIN_PATH:-}" = "x" ]; then
	BT_TESTS_BABELTRACE_PLUGIN_PATH="${BT_PLUGINS_PATH}/ctf:${BT_PLUGINS_PATH}/utils:${BT_PLUGINS_PATH}/text:${BT_PLUGINS_PATH}/lttng-utils"
fi

if [ "x${BT_TESTS_PROVIDER_DIR:-}" = "x" ]; then
	BT_TESTS_PROVIDER_DIR="${BT_TESTS_BUILDDIR}/../src/python-plugin-provider/.libs"
fi

# Allow overriding the babeltrace2 executables
if [ "x${BT_TESTS_PYTHONPATH:-}" = "x" ]; then
	BT_TESTS_PYTHONPATH="${BT_TESTS_BUILDDIR}/../src/bindings/python/bt2/build/build_lib"
fi


### External Tools ###
if [ "x${BT_TESTS_AWK_BIN:-}" = "x" ]; then
	BT_TESTS_AWK_BIN="awk"
fi
export BT_TESTS_AWK_BIN

if [ "x${BT_TESTS_GREP_BIN:-}" = "x" ]; then
	BT_TESTS_GREP_BIN="grep"
fi
export BT_TESTS_GREP_BIN

if [ "x${BT_TESTS_PYTHON_BIN:-}" = "x" ]; then
	BT_TESTS_PYTHON_BIN="python3"
fi
export BT_TESTS_PYTHON_BIN

if [ "x${BT_TESTS_PYTHON_CONFIG_BIN:-}" = "x" ]; then
	BT_TESTS_PYTHON_CONFIG_BIN="python3-config"
fi
export BT_TESTS_PYTHON_CONFIG_BIN

if [ "x${BT_TESTS_SED_BIN:-}" = "x" ]; then
	BT_TESTS_SED_BIN="sed"
fi
export BT_TESTS_SED_BIN


# Data files path
BT_TESTS_DATADIR="${BT_TESTS_SRCDIR}/data"
BT_CTF_TRACES_PATH="${BT_TESTS_DATADIR}/ctf-traces"

# Remove CR characters in file "$1".

bt_remove_cr() {
	"$BT_TESTS_SED_BIN" -i 's/\r//g' "$1"
}

# Run the Babeltrace CLI, redirecting stdout and stderr to specified files.
#
#   $1: file to redirect stdout to
#   $2: file to redirect stderr to
#   remaining args: arguments to pass to the CLI
#
# Return the exit code of the CLI.

bt_cli() {
	local stdout_file="$1"
	local stderr_file="$2"
	shift 2
	local args=("$@")

	echo "Running: $BT_TESTS_BT2_BIN ${args[*]}" >&2
	run_python_bt2 "$BT_TESTS_BT2_BIN" "${args[@]}" 1>"$stdout_file" 2>"$stderr_file"
}

### Diff Functions ###

# Check the differences between two files (typically some expected output vs
# some actual output).  If there are differences, print the diff to stderr.
#
#   $1: file 1 (expected)
#   $2: file 2 (actual)
#
# Return 0 if there's no difference, and non-zero if there are.
#
# Note that this function modifies the actual output file ($2) _in-place_ to
# remove any \r character.

bt_diff() {
	local expected_file="$1"
	local actual_file="$2"
	local ret=0

	# Strip any \r present due to Windows (\n -> \r\n).
	# "diff --string-trailing-cr" is not used since it is not present on
	# Solaris.
	bt_remove_cr "$actual_file"

	diff -u "$expected_file" "$actual_file" 1>&2

	return $?
}

# Checks the difference between:
#
#   1. What the CLI outputs on its standard output when given the arguments
#   "$@" (excluding the first two arguments).
#   2. The file with path "$1".
#
# And the difference between:
#
#   1. What the CLI outputs on its standard error when given the arguments
#   "$@" (excluding the first two arguments).
#   2. The file with path "$2".
#
# Returns 0 if there's no difference, and 1 if there is, also printing
# said difference to the standard error.
bt_diff_cli() {
	local expected_stdout_file="$1"
	local expected_stderr_file="$2"
	shift 2
	local args=("$@")

	local temp_stdout_output_file
	local temp_stderr_output_file
	local ret=0
	local ret_stdout
	local ret_stderr

	temp_stdout_output_file="$(mktemp -t actual_stdout.XXXXXX)"
	temp_stderr_output_file="$(mktemp -t actual_stderr.XXXXXX)"

	# Run the CLI to get a detailed file.
	bt_cli "$temp_stdout_output_file" "$temp_stderr_output_file" "${args[@]}"

	bt_diff "$expected_stdout_file" "$temp_stdout_output_file" "${args[@]}"
	ret_stdout=$?
	bt_diff "$expected_stderr_file" "$temp_stderr_output_file" "${args[@]}"
	ret_stderr=$?

	if ((ret_stdout != 0 || ret_stderr != 0)); then
		ret=1
	fi

	rm -f "$temp_stdout_output_file" "$temp_stderr_output_file"

	return $ret
}

# Checks the difference between the content of the file with path "$1"
# and the output of the CLI when called on the directory path "$2" with
# the arguments '-c sink.text.details' and the rest of the arguments to
# this function.
#
# Returns 0 if there's no difference, and 1 if there is, also printing
# said difference to the standard error.
bt_diff_details_ctf_single() {
	local expected_stdout_file="$1"
	local trace_dir="$2"
	shift 2
	local extra_details_args=("$@")
	expected_stderr_file="/dev/null"

	# Compare using the CLI with `sink.text.details`
	bt_diff_cli "$expected_stdout_file" "$expected_stderr_file" "$trace_dir" \
		"-c" "sink.text.details" "${extra_details_args[@]+${extra_details_args[@]}}"
}

# Calls bt_diff_details_ctf_single(), except that "$1" is the path to a
# program which generates the CTF trace to compare to. The program "$1"
# receives the path to a temporary, empty directory where to write the
# CTF trace as its first argument.
bt_diff_details_ctf_gen_single() {
	local ctf_gen_prog_path="$1"
	local expected_stdout_file="$2"
	shift 2
	local extra_details_args=("$@")

	local temp_trace_dir
	local ret

	temp_trace_dir="$(mktemp -d)"

	# Run the CTF trace generator program to get a CTF trace
	if ! "$ctf_gen_prog_path" "$temp_trace_dir" 2>/dev/null; then
		echo "ERROR: \"$ctf_gen_prog_path\" \"$temp_trace_dir\" failed" >&2
		rm -rf "$temp_trace_dir"
		return 1
	fi

	# Compare using the CLI with `sink.text.details`
	bt_diff_details_ctf_single "$expected_stdout_file" "$temp_trace_dir" \
		"${extra_details_args[@]+${extra_details_args[@]}}"
	ret=$?
	rm -rf "$temp_trace_dir"
	return $ret
}


### Functions ###

check_coverage() {
	coverage run "$@"
}

# Execute a shell command in the appropriate environment to have access to the
# bt2 Python bindings.
run_python_bt2() {
	local env_args

	env_args=(
		"BABELTRACE_PYTHON_BT2_NO_TRACEBACK=1" \
		"BABELTRACE_PLUGIN_PATH=${BT_TESTS_BABELTRACE_PLUGIN_PATH}" \
		"LIBBABELTRACE2_PLUGIN_PROVIDER_DIR=${BT_TESTS_PROVIDER_DIR}" \
		"BT_TESTS_DATADIR=${BT_TESTS_DATADIR}" \
		"BT_CTF_TRACES_PATH=${BT_CTF_TRACES_PATH}" \
		"BT_PLUGINS_PATH=${BT_PLUGINS_PATH}" \
		"PYTHONPATH=${BT_TESTS_PYTHONPATH}:${BT_TESTS_SRCDIR}/utils/python"
		)

	local main_lib_path="${BT_TESTS_BUILDDIR}/../src/lib/.libs"

	# Set the library search path so the python interpreter can load libbabeltrace2
	if [ "$BT_OS_TYPE" = "mingw" ] || [ "$BT_OS_TYPE" = "cygwin" ]; then
		env_args+=("PATH=${main_lib_path}:${PATH:-}")
	elif [ "$BT_OS_TYPE" = "darwin" ]; then
		env_args+=("DYLD_LIBRARY_PATH=${main_lib_path}:${DYLD_LIBRARY_PATH:-}")
	else
		env_args+=("LD_LIBRARY_PATH=${main_lib_path}:${LD_LIBRARY_PATH:-}")
	fi

	# On Windows, an embedded Python interpreter needs a way to locate the path
	# to it's internal modules, set the prefix from python-config to the
	# PYTHONHOME variable.
	if [ "$BT_OS_TYPE" = "mingw" ]; then
		env_args+=("PYTHONHOME=$($BT_TESTS_PYTHON_CONFIG_BIN --prefix)")
	fi

	env "${env_args[@]}" "$@"
}

# Set the environment and run python tests in the directory.
#
# $1 : The directory containing the python test scripts
# $2 : The pattern to match python test script names (optional)
run_python_bt2_test() {
	local test_dir="$1"
	local test_pattern="${2:-'*'}" # optional, if none default to "*"

	local ret
	local test_runner_args=()

	test_runner_args+=("$test_dir")
	if [ "x${test_pattern}" != "x" ]; then
		test_runner_args+=("${test_pattern}")
	fi

	if test "x${BT_TESTS_COVERAGE:-}" = "x1"; then
		python_exec="check_coverage"
	else
		python_exec="${BT_TESTS_PYTHON_BIN}"
	fi

	run_python_bt2 \
		"${python_exec}" \
		"${BT_TESTS_SRCDIR}/utils/python/testrunner.py" \
		--pattern "$test_pattern" \
		"$test_dir" \

	ret=$?

	if test "x${BT_TESTS_COVERAGE_REPORT:-}" = "x1"; then
		coverage report -m
	fi

	if test "x${BT_TESTS_COVERAGE_HTML:-}" = "x1"; then
		coverage html
	fi

	return $ret
}
Commit	Line	Data
644e0364 MJ	1	#!/bin/bash
	2
	3	# Copyright (c) 2019 Michael Jeanson <mjeanson@efficios.com>
	4	# Copyright (C) 2019 Philippe Proulx <pproulx@efficios.com>
	5	#
	6	# This program is free software; you can redistribute it and/or modify
	7	# it under the terms of the GNU General Public License as published by
	8	# the Free Software Foundation; under version 2 of the License.
	9	#
	10	# This program is distributed in the hope that it will be useful,
	11	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	# GNU General Public License for more details.
	14	#
	15	# You should have received a copy of the GNU General Public License along
	16	# with this program; if not, write to the Free Software Foundation, Inc.,
	17	# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
	18
	19	# This file is meant to be sourced at the start of shell script-based tests.
	20
	21
	22	# Error out when encountering an undefined variable
	23	set -u
	24
9c5dd55a MJ	25	# If "readlink -f" is available, get a resolved absolute path to the
9c5dd55a MJ	26	# tests source dir, otherwise make do with a relative path.
644e0364	27	scriptdir="$(dirname "${BASH_SOURCE[0]}")"
9c5dd55a MJ	28	if readlink -f "." >/dev/null 2>&1; then
	29	testsdir=$(readlink -f "$scriptdir/..")
	30	else
	31	testsdir="$scriptdir/.."
	32	fi
644e0364	33
5058d31b JR	34	# The OS on which we are running. See [1] for possible values of 'uname -s'.
	35	# We do a bit of translation to ease our life down the road for comparison.
	36	# Export it so that called executables can use it.
	37	# [1] https://en.wikipedia.org/wiki/Uname#Examples
	38	if [ "x${BT_OS_TYPE:-}" = "x" ]; then
	39	BT_OS_TYPE="$(uname -s)"
	40	case "$BT_OS_TYPE" in
	41	MINGW*)
	42	BT_OS_TYPE="mingw"
	43	;;
	44	Darwin)
	45	BT_OS_TYPE="darwin"
	46	;;
	47	Linux)
	48	BT_OS_TYPE="linux"
	49	;;
df9db467 JR	50	CYGWIN*)
	51	BT_OS_TYPE="cygwin"
	52	;;
5058d31b JR	53	*)
	54	BT_OS_TYPE="unsupported"
	55	;;
	56	esac
	57	fi
	58	export BT_OS_TYPE
	59
644e0364 MJ	60	# Allow overriding the source and build directories
644e0364 MJ	61	if [ "x${BT_TESTS_SRCDIR:-}" = "x" ]; then
9c5dd55a	62	BT_TESTS_SRCDIR="$testsdir"
644e0364 MJ	63	fi
	64	export BT_TESTS_SRCDIR
	65
	66	if [ "x${BT_TESTS_BUILDDIR:-}" = "x" ]; then
9c5dd55a	67	BT_TESTS_BUILDDIR="$testsdir"
644e0364 MJ	68	fi
	69	export BT_TESTS_BUILDDIR
	70
	71	# By default, it will not source tap.sh. If you to tap output directly from
	72	# the test script, define the 'SH_TAP' variable to '1' before sourcing this
	73	# script.
	74	if [ "x${SH_TAP:-}" = x1 ]; then
1d970e04	75	# shellcheck source=./tap/tap.sh
644e0364 MJ	76	. "${BT_TESTS_SRCDIR}/utils/tap/tap.sh"
	77	fi
	78
	79	# Allow overriding the babeltrace2 executables
	80	if [ "x${BT_TESTS_BT2_BIN:-}" = "x" ]; then
4881a20e	81	BT_TESTS_BT2_BIN="$BT_TESTS_BUILDDIR/../src/cli/babeltrace2"
5058d31b	82	if [ "$BT_OS_TYPE" = "mingw" ]; then
27e2c58d JR	83	BT_TESTS_BT2_BIN="${BT_TESTS_BT2_BIN}.exe"
27e2c58d JR	84	fi
644e0364 MJ	85	fi
	86	export BT_TESTS_BT2_BIN
	87
644e0364 MJ	88	# TODO: Remove when bindings/python/bt2/test_plugin.py is fixed
	89	BT_PLUGINS_PATH="${BT_TESTS_BUILDDIR}/../src/plugins"
	90
	91	# Allow overriding the babeltrace2 plugin path
	92	if [ "x${BT_TESTS_BABELTRACE_PLUGIN_PATH:-}" = "x" ]; then
e8cafc6e	93	BT_TESTS_BABELTRACE_PLUGIN_PATH="${BT_PLUGINS_PATH}/ctf:${BT_PLUGINS_PATH}/utils:${BT_PLUGINS_PATH}/text:${BT_PLUGINS_PATH}/lttng-utils"
644e0364 MJ	94	fi
644e0364 MJ	95
b14c7bf1 MJ	96	if [ "x${BT_TESTS_PROVIDER_DIR:-}" = "x" ]; then
	97	BT_TESTS_PROVIDER_DIR="${BT_TESTS_BUILDDIR}/../src/python-plugin-provider/.libs"
	98	fi
	99
644e0364 MJ	100	# Allow overriding the babeltrace2 executables
	101	if [ "x${BT_TESTS_PYTHONPATH:-}" = "x" ]; then
	102	BT_TESTS_PYTHONPATH="${BT_TESTS_BUILDDIR}/../src/bindings/python/bt2/build/build_lib"
	103	fi
	104
	105
	106	### External Tools ###
	107	if [ "x${BT_TESTS_AWK_BIN:-}" = "x" ]; then
	108	BT_TESTS_AWK_BIN="awk"
	109	fi
	110	export BT_TESTS_AWK_BIN
	111
	112	if [ "x${BT_TESTS_GREP_BIN:-}" = "x" ]; then
	113	BT_TESTS_GREP_BIN="grep"
	114	fi
	115	export BT_TESTS_GREP_BIN
	116
	117	if [ "x${BT_TESTS_PYTHON_BIN:-}" = "x" ]; then
	118	BT_TESTS_PYTHON_BIN="python3"
	119	fi
	120	export BT_TESTS_PYTHON_BIN
	121
e23e08c4 MJ	122	if [ "x${BT_TESTS_PYTHON_CONFIG_BIN:-}" = "x" ]; then
	123	BT_TESTS_PYTHON_CONFIG_BIN="python3-config"
	124	fi
242ddcb7	125	export BT_TESTS_PYTHON_CONFIG_BIN
e23e08c4	126
644e0364 MJ	127	if [ "x${BT_TESTS_SED_BIN:-}" = "x" ]; then
	128	BT_TESTS_SED_BIN="sed"
	129	fi
	130	export BT_TESTS_SED_BIN
	131
	132
	133	# Data files path
	134	BT_TESTS_DATADIR="${BT_TESTS_SRCDIR}/data"
	135	BT_CTF_TRACES_PATH="${BT_TESTS_DATADIR}/ctf-traces"
644e0364	136
90a8a0f2 SM	137	# Remove CR characters in file "$1".
	138
	139	bt_remove_cr() {
	140	"$BT_TESTS_SED_BIN" -i 's/\r//g' "$1"
	141	}
	142
22703f66 SM	143	# Run the Babeltrace CLI, redirecting stdout and stderr to specified files.
	144	#
	145	# $1: file to redirect stdout to
	146	# $2: file to redirect stderr to
	147	# remaining args: arguments to pass to the CLI
	148	#
	149	# Return the exit code of the CLI.
	150
	151	bt_cli() {
	152	local stdout_file="$1"
	153	local stderr_file="$2"
	154	shift 2
	155	local args=("$@")
	156
ea458b95	157	echo "Running: $BT_TESTS_BT2_BIN ${args[*]}" >&2
22703f66 SM	158	run_python_bt2 "$BT_TESTS_BT2_BIN" "${args[@]}" 1>"$stdout_file" 2>"$stderr_file"
22703f66 SM	159	}
644e0364 MJ	160
	161	### Diff Functions ###
	162
a70b6702 SM	163	# Check the differences between two files (typically some expected output vs
a70b6702 SM	164	# some actual output). If there are differences, print the diff to stderr.
ff89ed28	165	#
a70b6702 SM	166	# $1: file 1 (expected)
a70b6702 SM	167	# $2: file 2 (actual)
ff89ed28	168	#
ea458b95	169	# Return 0 if there's no difference, and non-zero if there are.
ff89ed28	170	#
a70b6702 SM	171	# Note that this function modifies the actual output file ($2) _in-place_ to
	172	# remove any \r character.
	173
ff89ed28	174	bt_diff() {
a70b6702 SM	175	local expected_file="$1"
a70b6702 SM	176	local actual_file="$2"
ff89ed28	177	local ret=0
ff89ed28 MJ	178
	179	# Strip any \r present due to Windows (\n -> \r\n).
	180	# "diff --string-trailing-cr" is not used since it is not present on
	181	# Solaris.
90a8a0f2	182	bt_remove_cr "$actual_file"
ff89ed28	183
ea458b95	184	diff -u "$expected_file" "$actual_file" 1>&2
ff89ed28	185
ea458b95	186	return $?
ff89ed28 MJ	187	}
ff89ed28 MJ	188
58db335e FD	189	# Checks the difference between:
	190	#
	191	# 1. What the CLI outputs on its standard output when given the arguments
	192	# "$@" (excluding the first two arguments).
	193	# 2. The file with path "$1".
	194	#
	195	# And the difference between:
	196	#
	197	# 1. What the CLI outputs on its standard error when given the arguments
	198	# "$@" (excluding the first two arguments).
	199	# 2. The file with path "$2".
644e0364 MJ	200	#
	201	# Returns 0 if there's no difference, and 1 if there is, also printing
	202	# said difference to the standard error.
	203	bt_diff_cli() {
58db335e FD	204	local expected_stdout_file="$1"
	205	local expected_stderr_file="$2"
	206	shift 2
53cc240b MJ	207	local args=("$@")
53cc240b MJ	208
58db335e FD	209	local temp_stdout_output_file
58db335e FD	210	local temp_stderr_output_file
644e0364	211	local ret=0
a70b6702 SM	212	local ret_stdout
a70b6702 SM	213	local ret_stderr
644e0364	214
ff89ed28 MJ	215	temp_stdout_output_file="$(mktemp -t actual_stdout.XXXXXX)"
ff89ed28 MJ	216	temp_stderr_output_file="$(mktemp -t actual_stderr.XXXXXX)"
644e0364	217
58db335e	218	# Run the CLI to get a detailed file.
22703f66	219	bt_cli "$temp_stdout_output_file" "$temp_stderr_output_file" "${args[@]}"
58db335e	220
a70b6702 SM	221	bt_diff "$expected_stdout_file" "$temp_stdout_output_file" "${args[@]}"
	222	ret_stdout=$?
	223	bt_diff "$expected_stderr_file" "$temp_stderr_output_file" "${args[@]}"
	224	ret_stderr=$?
	225
	226	if ((ret_stdout != 0 \|\| ret_stderr != 0)); then
	227	ret=1
	228	fi
58db335e	229
ff89ed28	230	rm -f "$temp_stdout_output_file" "$temp_stderr_output_file"
644e0364	231
ff89ed28 MJ	232	return $ret
	233	}
	234
53cc240b MJ	235	# Checks the difference between the content of the file with path "$1"
	236	# and the output of the CLI when called on the directory path "$2" with
	237	# the arguments '-c sink.text.details' and the rest of the arguments to
	238	# this function.
644e0364 MJ	239	#
	240	# Returns 0 if there's no difference, and 1 if there is, also printing
	241	# said difference to the standard error.
	242	bt_diff_details_ctf_single() {
58db335e	243	local expected_stdout_file="$1"
53cc240b MJ	244	local trace_dir="$2"
	245	shift 2
	246	local extra_details_args=("$@")
58db335e	247	expected_stderr_file="/dev/null"
644e0364 MJ	248
644e0364 MJ	249	# Compare using the CLI with `sink.text.details`
8b729209 PP	250	bt_diff_cli "$expected_stdout_file" "$expected_stderr_file" "$trace_dir" \
8b729209 PP	251	"-c" "sink.text.details" "${extra_details_args[@]+${extra_details_args[@]}}"
644e0364 MJ	252	}
	253
	254	# Calls bt_diff_details_ctf_single(), except that "$1" is the path to a
	255	# program which generates the CTF trace to compare to. The program "$1"
	256	# receives the path to a temporary, empty directory where to write the
	257	# CTF trace as its first argument.
	258	bt_diff_details_ctf_gen_single() {
	259	local ctf_gen_prog_path="$1"
58db335e	260	local expected_stdout_file="$2"
53cc240b MJ	261	shift 2
53cc240b MJ	262	local extra_details_args=("$@")
644e0364 MJ	263
	264	local temp_trace_dir
	265	local ret
	266
	267	temp_trace_dir="$(mktemp -d)"
	268
	269	# Run the CTF trace generator program to get a CTF trace
	270	if ! "$ctf_gen_prog_path" "$temp_trace_dir" 2>/dev/null; then
	271	echo "ERROR: \"$ctf_gen_prog_path\" \"$temp_trace_dir\" failed" >&2
	272	rm -rf "$temp_trace_dir"
	273	return 1
	274	fi
	275
	276	# Compare using the CLI with `sink.text.details`
8b729209 PP	277	bt_diff_details_ctf_single "$expected_stdout_file" "$temp_trace_dir" \
8b729209 PP	278	"${extra_details_args[@]+${extra_details_args[@]}}"
644e0364 MJ	279	ret=$?
	280	rm -rf "$temp_trace_dir"
	281	return $ret
	282	}
	283
	284
	285	### Functions ###
	286
	287	check_coverage() {
	288	coverage run "$@"
	289	}
	290
	291	# Execute a shell command in the appropriate environment to have access to the
	292	# bt2 Python bindings.
	293	run_python_bt2() {
e23e08c4 MJ	294	local env_args
	295
	296	env_args=(
	297	"BABELTRACE_PYTHON_BT2_NO_TRACEBACK=1" \
	298	"BABELTRACE_PLUGIN_PATH=${BT_TESTS_BABELTRACE_PLUGIN_PATH}" \
	299	"LIBBABELTRACE2_PLUGIN_PROVIDER_DIR=${BT_TESTS_PROVIDER_DIR}" \
f3c9a159	300	"BT_TESTS_DATADIR=${BT_TESTS_DATADIR}" \
e23e08c4 MJ	301	"BT_CTF_TRACES_PATH=${BT_CTF_TRACES_PATH}" \
	302	"BT_PLUGINS_PATH=${BT_PLUGINS_PATH}" \
	303	"PYTHONPATH=${BT_TESTS_PYTHONPATH}:${BT_TESTS_SRCDIR}/utils/python"
	304	)
644e0364	305
0408934a SM	306	local main_lib_path="${BT_TESTS_BUILDDIR}/../src/lib/.libs"
0408934a SM	307
644e0364	308	# Set the library search path so the python interpreter can load libbabeltrace2
df9db467	309	if [ "$BT_OS_TYPE" = "mingw" ] \|\| [ "$BT_OS_TYPE" = "cygwin" ]; then
e23e08c4	310	env_args+=("PATH=${main_lib_path}:${PATH:-}")
5058d31b	311	elif [ "$BT_OS_TYPE" = "darwin" ]; then
e23e08c4	312	env_args+=("DYLD_LIBRARY_PATH=${main_lib_path}:${DYLD_LIBRARY_PATH:-}")
644e0364	313	else
e23e08c4 MJ	314	env_args+=("LD_LIBRARY_PATH=${main_lib_path}:${LD_LIBRARY_PATH:-}")
	315	fi
	316
	317	# On Windows, an embedded Python interpreter needs a way to locate the path
	318	# to it's internal modules, set the prefix from python-config to the
	319	# PYTHONHOME variable.
	320	if [ "$BT_OS_TYPE" = "mingw" ]; then
	321	env_args+=("PYTHONHOME=$($BT_TESTS_PYTHON_CONFIG_BIN --prefix)")
644e0364 MJ	322	fi
644e0364 MJ	323
e23e08c4	324	env "${env_args[@]}" "$@"
644e0364 MJ	325	}
	326
	327	# Set the environment and run python tests in the directory.
	328	#
	329	# $1 : The directory containing the python test scripts
	330	# $2 : The pattern to match python test script names (optional)
644e0364 MJ	331	run_python_bt2_test() {
644e0364 MJ	332	local test_dir="$1"
a818a617	333	local test_pattern="${2:-''}" # optional, if none default to ""
644e0364 MJ	334
	335	local ret
	336	local test_runner_args=()
	337
	338	test_runner_args+=("$test_dir")
	339	if [ "x${test_pattern}" != "x" ]; then
	340	test_runner_args+=("${test_pattern}")
	341	fi
	342
	343	if test "x${BT_TESTS_COVERAGE:-}" = "x1"; then
	344	python_exec="check_coverage"
	345	else
	346	python_exec="${BT_TESTS_PYTHON_BIN}"
	347	fi
	348
	349	run_python_bt2 \
	350	"${python_exec}" \
	351	"${BT_TESTS_SRCDIR}/utils/python/testrunner.py" \
a818a617 FD	352	--pattern "$test_pattern" \
	353	"$test_dir" \
	354
644e0364 MJ	355	ret=$?
	356
	357	if test "x${BT_TESTS_COVERAGE_REPORT:-}" = "x1"; then
	358	coverage report -m
	359	fi
	360
	361	if test "x${BT_TESTS_COVERAGE_HTML:-}" = "x1"; then
	362	coverage html
	363	fi
	364
	365	return $ret
	366	}