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From: "Johannes Schindelin via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: Johannes Schindelin <johannes.schindelin@gmx.de>,
	Johannes Schindelin <johannes.schindelin@gmx.de>
Subject: [PATCH 5/9] tests: refactor --write-junit-xml code
Date: Mon, 24 Jan 2022 18:56:10 +0000	[thread overview]
Message-ID: <94dcbe1bc437dc9738cfc635e9085d743eb4ec98.1643050574.git.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.1117.git.1643050574.gitgitgadget@gmail.com>

From: Johannes Schindelin <johannes.schindelin@gmx.de>

The code writing JUnit XML is interspersed directly with all the code in
`t/test-lib.sh`, and it is therefore not only ill-separated, but
introducing yet another output format would make the situation even
worse.

Let's introduce an abstraction layer by hiding the JUnit XML code behind
four new functions that are supposed to be called before and after each
test and test case.

This is not just an academic exercise, refactoring for refactoring's
sake. We _actually_ want to introduce such a new output format, to
make it substantially easier to diagnose test failures in our GitHub
workflow, therefore we do need this refactoring.

This commit is best viewed with `git show --color-moved
--color-moved-ws=allow-indentation-change <commit>`.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 t/test-lib-junit.sh | 126 ++++++++++++++++++++++++++++++++++++++++++++
 t/test-lib.sh       | 124 ++++++-------------------------------------
 2 files changed, 142 insertions(+), 108 deletions(-)
 create mode 100644 t/test-lib-junit.sh

diff --git a/t/test-lib-junit.sh b/t/test-lib-junit.sh
new file mode 100644
index 00000000000..9d55d74d764
--- /dev/null
+++ b/t/test-lib-junit.sh
@@ -0,0 +1,126 @@
+# Library of functions to format test scripts' output in JUnit XML
+# format, to support Git's test suite result to be presented in an
+# easily digestible way on Azure Pipelines.
+#
+# Copyright (c) 2022 Johannes Schindelin
+#
+# 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, either version 2 of the License, or
+# (at your option) any later version.
+#
+# 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, see http://www.gnu.org/licenses/ .
+#
+# The idea is for `test-lib.sh` to source this file when the user asks
+# for JUnit XML; these functions will then override (empty) functions
+# that are are called at the appropriate times during the test runs.
+
+start_test_output () {
+	junit_xml_dir="$TEST_OUTPUT_DIRECTORY/out"
+	mkdir -p "$junit_xml_dir"
+	junit_xml_base=${1##*/}
+	junit_xml_path="$junit_xml_dir/TEST-${junit_xml_base%.sh}.xml"
+	junit_attrs="name=\"${junit_xml_base%.sh}\""
+	junit_attrs="$junit_attrs timestamp=\"$(TZ=UTC \
+		date +%Y-%m-%dT%H:%M:%S)\""
+	write_junit_xml --truncate "<testsuites>" "  <testsuite $junit_attrs>"
+	junit_suite_start=$(test-tool date getnanos)
+	if test -n "$GIT_TEST_TEE_OUTPUT_FILE"
+	then
+		GIT_TEST_TEE_OFFSET=0
+	fi
+}
+
+start_test_case_output () {
+	junit_start=$(test-tool date getnanos)
+}
+
+finalize_test_case_output () {
+	test_case_result=$1
+	shift
+	case "$test_case_result" in
+	ok)
+		set "$*"
+		;;
+	failure)
+		junit_insert="<failure message=\"not ok $test_count -"
+		junit_insert="$junit_insert $(xml_attr_encode "$1")\">"
+		junit_insert="$junit_insert $(xml_attr_encode \
+			"$(if test -n "$GIT_TEST_TEE_OUTPUT_FILE"
+			   then
+				test-tool path-utils skip-n-bytes \
+					"$GIT_TEST_TEE_OUTPUT_FILE" $GIT_TEST_TEE_OFFSET
+			   else
+				printf '%s\n' "$@" | sed 1d
+			   fi)")"
+		junit_insert="$junit_insert</failure>"
+		if test -n "$GIT_TEST_TEE_OUTPUT_FILE"
+		then
+			junit_insert="$junit_insert<system-err>$(xml_attr_encode \
+				"$(cat "$GIT_TEST_TEE_OUTPUT_FILE")")</system-err>"
+		fi
+		set "$1" "      $junit_insert"
+		;;
+	fixed)
+		set "$* (breakage fixed)"
+		;;
+	broken)
+		set "$* (known breakage)"
+		;;
+	skip)
+		message="$(xml_attr_encode "$skipped_reason")"
+		set "$1" "      <skipped message=\"$message\" />"
+		;;
+	esac
+
+	junit_attrs="name=\"$(xml_attr_encode "$this_test.$test_count $1")\""
+	shift
+	junit_attrs="$junit_attrs classname=\"$this_test\""
+	junit_attrs="$junit_attrs time=\"$(test-tool \
+		date getnanos $junit_start)\""
+	write_junit_xml "$(printf '%s\n' \
+		"    <testcase $junit_attrs>" "$@" "    </testcase>")"
+	junit_have_testcase=t
+}
+
+finalize_test_output () {
+	if test -n "$junit_xml_path"
+	then
+		test -n "$junit_have_testcase" || {
+			junit_start=$(test-tool date getnanos)
+			write_junit_xml_testcase "all tests skipped"
+		}
+
+		# adjust the overall time
+		junit_time=$(test-tool date getnanos $junit_suite_start)
+		sed -e "s/\(<testsuite.*\) time=\"[^\"]*\"/\1/" \
+			-e "s/<testsuite [^>]*/& time=\"$junit_time\"/" \
+			-e '/^ *<\/testsuite/d' \
+			<"$junit_xml_path" >"$junit_xml_path.new"
+		mv "$junit_xml_path.new" "$junit_xml_path"
+
+		write_junit_xml "  </testsuite>" "</testsuites>"
+		write_junit_xml=
+	fi
+}
+
+write_junit_xml () {
+	case "$1" in
+	--truncate)
+		>"$junit_xml_path"
+		junit_have_testcase=
+		shift
+		;;
+	esac
+	printf '%s\n' "$@" >>"$junit_xml_path"
+}
+
+xml_attr_encode () {
+	printf '%s\n' "$@" | test-tool xml-encode
+}
diff --git a/t/test-lib.sh b/t/test-lib.sh
index 0f7a137c7d8..e13e1cb9124 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -107,6 +107,12 @@ mark_option_requires_arg () {
 	store_arg_to=$2
 }
 
+# These functions can be overridden e.g. to output JUnit XML
+start_test_output () { :; }
+start_test_case_output () { :; }
+finalize_test_case_output () { :; }
+finalize_test_output () { :; }
+
 parse_option () {
 	local opt="$1"
 
@@ -166,7 +172,7 @@ parse_option () {
 		tee=t
 		;;
 	--write-junit-xml)
-		write_junit_xml=t
+		. "$TEST_DIRECTORY/test-lib-junit.sh"
 		;;
 	--stress)
 		stress=t ;;
@@ -613,7 +619,7 @@ exec 6<&0
 exec 7>&2
 
 _error_exit () {
-	finalize_junit_xml
+	finalize_test_output
 	GIT_EXIT_OK=t
 	exit 1
 }
@@ -723,35 +729,13 @@ trap '{ code=$?; set +x; } 2>/dev/null; exit $code' INT TERM HUP
 # the test_expect_* functions instead.
 
 test_ok_ () {
-	if test -n "$write_junit_xml"
-	then
-		write_junit_xml_testcase "$*"
-	fi
+	finalize_test_case_output ok "$@"
 	test_success=$(($test_success + 1))
 	say_color "" "ok $test_count - $@"
 }
 
 test_failure_ () {
-	if test -n "$write_junit_xml"
-	then
-		junit_insert="<failure message=\"not ok $test_count -"
-		junit_insert="$junit_insert $(xml_attr_encode "$1")\">"
-		junit_insert="$junit_insert $(xml_attr_encode \
-			"$(if test -n "$GIT_TEST_TEE_OUTPUT_FILE"
-			   then
-				test-tool path-utils skip-n-bytes \
-					"$GIT_TEST_TEE_OUTPUT_FILE" $GIT_TEST_TEE_OFFSET
-			   else
-				printf '%s\n' "$@" | sed 1d
-			   fi)")"
-		junit_insert="$junit_insert</failure>"
-		if test -n "$GIT_TEST_TEE_OUTPUT_FILE"
-		then
-			junit_insert="$junit_insert<system-err>$(xml_attr_encode \
-				"$(cat "$GIT_TEST_TEE_OUTPUT_FILE")")</system-err>"
-		fi
-		write_junit_xml_testcase "$1" "      $junit_insert"
-	fi
+	finalize_test_case_output failure "$@"
 	test_failure=$(($test_failure + 1))
 	say_color error "not ok $test_count - $1"
 	shift
@@ -760,19 +744,13 @@ test_failure_ () {
 }
 
 test_known_broken_ok_ () {
-	if test -n "$write_junit_xml"
-	then
-		write_junit_xml_testcase "$* (breakage fixed)"
-	fi
+	finalize_test_case_output fixed "$@"
 	test_fixed=$(($test_fixed+1))
 	say_color error "ok $test_count - $@ # TODO known breakage vanished"
 }
 
 test_known_broken_failure_ () {
-	if test -n "$write_junit_xml"
-	then
-		write_junit_xml_testcase "$* (known breakage)"
-	fi
+	finalize_test_case_output broken "$@"
 	test_broken=$(($test_broken+1))
 	say_color warn "not ok $test_count - $@ # TODO known breakage"
 }
@@ -1049,10 +1027,7 @@ test_start_ () {
 	test_count=$(($test_count+1))
 	maybe_setup_verbose
 	maybe_setup_valgrind
-	if test -n "$write_junit_xml"
-	then
-		junit_start=$(test-tool date getnanos)
-	fi
+	start_test_case_output
 }
 
 test_finish_ () {
@@ -1103,12 +1078,7 @@ test_skip () {
 
 	case "$to_skip" in
 	t)
-		if test -n "$write_junit_xml"
-		then
-			message="$(xml_attr_encode "$skipped_reason")"
-			write_junit_xml_testcase "$1" \
-				"      <skipped message=\"$message\" />"
-		fi
+		finalize_test_case_output skip "$@"
 
 		say_color skip "ok $test_count # skip $1 ($skipped_reason)"
 		: true
@@ -1124,53 +1094,6 @@ test_at_end_hook_ () {
 	:
 }
 
-write_junit_xml () {
-	case "$1" in
-	--truncate)
-		>"$junit_xml_path"
-		junit_have_testcase=
-		shift
-		;;
-	esac
-	printf '%s\n' "$@" >>"$junit_xml_path"
-}
-
-xml_attr_encode () {
-	printf '%s\n' "$@" | test-tool xml-encode
-}
-
-write_junit_xml_testcase () {
-	junit_attrs="name=\"$(xml_attr_encode "$this_test.$test_count $1")\""
-	shift
-	junit_attrs="$junit_attrs classname=\"$this_test\""
-	junit_attrs="$junit_attrs time=\"$(test-tool \
-		date getnanos $junit_start)\""
-	write_junit_xml "$(printf '%s\n' \
-		"    <testcase $junit_attrs>" "$@" "    </testcase>")"
-	junit_have_testcase=t
-}
-
-finalize_junit_xml () {
-	if test -n "$write_junit_xml" && test -n "$junit_xml_path"
-	then
-		test -n "$junit_have_testcase" || {
-			junit_start=$(test-tool date getnanos)
-			write_junit_xml_testcase "all tests skipped"
-		}
-
-		# adjust the overall time
-		junit_time=$(test-tool date getnanos $junit_suite_start)
-		sed -e "s/\(<testsuite.*\) time=\"[^\"]*\"/\1/" \
-			-e "s/<testsuite [^>]*/& time=\"$junit_time\"/" \
-			-e '/^ *<\/testsuite/d' \
-			<"$junit_xml_path" >"$junit_xml_path.new"
-		mv "$junit_xml_path.new" "$junit_xml_path"
-
-		write_junit_xml "  </testsuite>" "</testsuites>"
-		write_junit_xml=
-	fi
-}
-
 test_atexit_cleanup=:
 test_atexit_handler () {
 	# In a succeeding test script 'test_atexit_handler' is invoked
@@ -1193,7 +1116,7 @@ test_done () {
 	# removed, so the commands can access pidfiles and socket files.
 	test_atexit_handler
 
-	finalize_junit_xml
+	finalize_test_output
 
 	if test -z "$HARNESS_ACTIVE"
 	then
@@ -1484,22 +1407,7 @@ fi
 # in subprocesses like git equals our $PWD (for pathname comparisons).
 cd -P "$TRASH_DIRECTORY" || exit 1
 
-if test -n "$write_junit_xml"
-then
-	junit_xml_dir="$TEST_OUTPUT_DIRECTORY/out"
-	mkdir -p "$junit_xml_dir"
-	junit_xml_base=${0##*/}
-	junit_xml_path="$junit_xml_dir/TEST-${junit_xml_base%.sh}.xml"
-	junit_attrs="name=\"${junit_xml_base%.sh}\""
-	junit_attrs="$junit_attrs timestamp=\"$(TZ=UTC \
-		date +%Y-%m-%dT%H:%M:%S)\""
-	write_junit_xml --truncate "<testsuites>" "  <testsuite $junit_attrs>"
-	junit_suite_start=$(test-tool date getnanos)
-	if test -n "$GIT_TEST_TEE_OUTPUT_FILE"
-	then
-		GIT_TEST_TEE_OFFSET=0
-	fi
-fi
+start_test_output "$0"
 
 # Convenience
 # A regexp to match 5 and 35 hexdigits
-- 
gitgitgadget


  parent reply	other threads:[~2022-01-24 19:03 UTC|newest]

Thread overview: 98+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-24 18:56 [PATCH 0/9] ci: make Git's GitHub workflow output much more helpful Johannes Schindelin via GitGitGadget
2022-01-24 18:56 ` [PATCH 1/9] ci: fix code style Johannes Schindelin via GitGitGadget
2022-01-24 18:56 ` [PATCH 2/9] ci/run-build-and-tests: take a more high-level view Johannes Schindelin via GitGitGadget
2022-01-24 23:22   ` Eric Sunshine
2022-01-25 14:34     ` Johannes Schindelin
2022-01-24 18:56 ` [PATCH 3/9] ci: make it easier to find failed tests' logs in the GitHub workflow Johannes Schindelin via GitGitGadget
2022-01-25 23:48   ` Ævar Arnfjörð Bjarmason
2022-01-24 18:56 ` [PATCH 4/9] ci/run-build-and-tests: add some structure to the GitHub workflow output Johannes Schindelin via GitGitGadget
2022-02-23 12:13   ` Phillip Wood
2022-02-25 13:40     ` Johannes Schindelin
2022-01-24 18:56 ` Johannes Schindelin via GitGitGadget [this message]
2022-01-26  0:10   ` [PATCH 5/9] tests: refactor --write-junit-xml code Ævar Arnfjörð Bjarmason
2022-01-24 18:56 ` [PATCH 6/9] test(junit): avoid line feeds in XML attributes Johannes Schindelin via GitGitGadget
2022-01-24 18:56 ` [PATCH 7/9] ci: optionally mark up output in the GitHub workflow Johannes Schindelin via GitGitGadget
2022-01-24 18:56 ` [PATCH 8/9] ci: use `--github-workflow-markup` " Johannes Schindelin via GitGitGadget
2022-01-24 18:56 ` [PATCH 9/9] ci: call `finalize_test_case_output` a little later Johannes Schindelin via GitGitGadget
2022-01-26  0:25 ` [PATCH 0/9] ci: make Git's GitHub workflow output much more helpful Ævar Arnfjörð Bjarmason
2022-01-27 16:31 ` CI "grouping" within jobs v.s. lighter split-out jobs (was: [PATCH 0/9] ci: make Git's GitHub workflow output much more helpful) Ævar Arnfjörð Bjarmason
2022-02-19 23:46 ` [PATCH 0/9] ci: make Git's GitHub workflow output much more helpful Johannes Schindelin
2022-02-20  2:44   ` Junio C Hamano
2022-02-20 15:25     ` Johannes Schindelin
2022-02-21  8:09       ` Ævar Arnfjörð Bjarmason
2022-02-22 10:26         ` Johannes Schindelin
2022-02-20 12:47   ` Ævar Arnfjörð Bjarmason
2022-02-22 10:30     ` Johannes Schindelin
2022-02-22 13:31       ` Ævar Arnfjörð Bjarmason
2022-02-23 12:07         ` Phillip Wood
2022-02-25 12:39           ` Ævar Arnfjörð Bjarmason
2022-02-25 14:10           ` Johannes Schindelin
2022-02-25 18:16             ` Junio C Hamano
2022-02-26 18:43               ` Junio C Hamano
2022-03-01  2:59                 ` Junio C Hamano
2022-03-01  6:35                   ` Junio C Hamano
2022-03-01 10:18                   ` Johannes Schindelin
2022-03-01 16:52                     ` Junio C Hamano
2022-03-01 10:10                 ` Johannes Schindelin
2022-03-01 16:57                   ` Junio C Hamano
2022-03-01 10:20               ` Johannes Schindelin
2022-03-04  7:38               ` win+VS environment has "cut" but not "paste"? Junio C Hamano
2022-03-04  9:04                 ` Ævar Arnfjörð Bjarmason
2022-03-07 15:51                   ` Johannes Schindelin
2022-03-07 17:05                     ` Junio C Hamano
2022-03-09 13:02                       ` Johannes Schindelin
2022-03-10 15:23                         ` Ævar Arnfjörð Bjarmason
2022-03-07 15:48                 ` Johannes Schindelin
2022-03-07 16:58                   ` Junio C Hamano
2022-03-02 10:58             ` [PATCH 0/9] ci: make Git's GitHub workflow output much more helpful Phillip Wood
2022-03-07 16:07               ` Johannes Schindelin
2022-03-07 17:11                 ` Junio C Hamano
2022-03-09 11:44                   ` Ævar Arnfjörð Bjarmason
2022-03-07 17:12                 ` Phillip Wood
2022-03-01 10:24 ` [PATCH v2 " Johannes Schindelin via GitGitGadget
2022-03-01 10:24   ` [PATCH v2 1/9] ci: fix code style Johannes Schindelin via GitGitGadget
2022-03-01 10:24   ` [PATCH v2 2/9] ci/run-build-and-tests: take a more high-level view Johannes Schindelin via GitGitGadget
2022-03-01 10:24   ` [PATCH v2 3/9] ci: make it easier to find failed tests' logs in the GitHub workflow Johannes Schindelin via GitGitGadget
2022-03-01 10:24   ` [PATCH v2 4/9] ci/run-build-and-tests: add some structure to the GitHub workflow output Johannes Schindelin via GitGitGadget
2022-03-01 10:24   ` [PATCH v2 5/9] tests: refactor --write-junit-xml code Johannes Schindelin via GitGitGadget
2022-03-01 10:24   ` [PATCH v2 6/9] test(junit): avoid line feeds in XML attributes Johannes Schindelin via GitGitGadget
2022-03-01 10:24   ` [PATCH v2 7/9] ci: optionally mark up output in the GitHub workflow Johannes Schindelin via GitGitGadget
2022-03-01 10:24   ` [PATCH v2 8/9] ci: use `--github-workflow-markup` " Johannes Schindelin via GitGitGadget
2022-03-01 10:24   ` [PATCH v2 9/9] ci: call `finalize_test_case_output` a little later Johannes Schindelin via GitGitGadget
2022-03-01 19:07   ` [PATCH v2 0/9] ci: make Git's GitHub workflow output much more helpful Junio C Hamano
2022-03-02 12:22   ` Ævar Arnfjörð Bjarmason
2022-03-07 15:57     ` Johannes Schindelin
2022-03-07 16:05       ` Ævar Arnfjörð Bjarmason
2022-03-07 17:36         ` Junio C Hamano
2022-03-09 10:56           ` Ævar Arnfjörð Bjarmason
2022-03-09 13:20         ` Johannes Schindelin
2022-03-09 19:39           ` Junio C Hamano
2022-03-09 19:47           ` Ævar Arnfjörð Bjarmason
2022-03-25  0:48   ` Victoria Dye
2022-03-25  9:02     ` Ævar Arnfjörð Bjarmason
2022-03-25 18:38       ` Victoria Dye
2022-05-21 21:42     ` Johannes Schindelin
2022-05-21 23:05       ` Junio C Hamano
2022-05-22 18:48         ` Johannes Schindelin
2022-05-22 19:10           ` Junio C Hamano
2022-05-23 12:58             ` Johannes Schindelin
2022-05-22 23:27         ` Junio C Hamano
2022-05-23 18:55           ` Junio C Hamano
2022-05-23 19:21             ` Johannes Schindelin
2022-05-23  9:05         ` Ævar Arnfjörð Bjarmason
2022-05-23 18:41           ` Johannes Schindelin
2022-05-24  8:40             ` Ævar Arnfjörð Bjarmason
2022-05-21 22:18   ` [PATCH v3 00/12] " Johannes Schindelin via GitGitGadget
2022-05-21 22:18     ` [PATCH v3 01/12] ci: fix code style Johannes Schindelin via GitGitGadget
2022-05-21 22:18     ` [PATCH v3 02/12] tests: refactor --write-junit-xml code Johannes Schindelin via GitGitGadget
2022-05-21 22:18     ` [PATCH v3 03/12] test(junit): avoid line feeds in XML attributes Johannes Schindelin via GitGitGadget
2022-05-21 22:18     ` [PATCH v3 04/12] ci/run-build-and-tests: take a more high-level view Johannes Schindelin via GitGitGadget
2022-05-21 22:18     ` [PATCH v3 05/12] ci: make it easier to find failed tests' logs in the GitHub workflow Johannes Schindelin via GitGitGadget
2022-05-21 22:18     ` [PATCH v3 06/12] ci/run-build-and-tests: add some structure to the GitHub workflow output Johannes Schindelin via GitGitGadget
2022-05-21 22:18     ` [PATCH v3 07/12] ci: optionally mark up output in the GitHub workflow Johannes Schindelin via GitGitGadget
2022-05-21 22:18     ` [PATCH v3 08/12] ci(github): skip the logs of the successful test cases Johannes Schindelin via GitGitGadget
2022-05-24 10:47       ` Ævar Arnfjörð Bjarmason
2022-05-21 22:18     ` [PATCH v3 09/12] ci(github): avoid printing test case preamble twice Victoria Dye via GitGitGadget
2022-05-21 22:18     ` [PATCH v3 10/12] ci: use `--github-workflow-markup` in the GitHub workflow Johannes Schindelin via GitGitGadget
2022-05-21 22:18     ` [PATCH v3 11/12] ci(github): mention where the full logs can be found Johannes Schindelin via GitGitGadget
2022-05-21 22:18     ` [PATCH v3 12/12] ci: call `finalize_test_case_output` a little later Johannes Schindelin via GitGitGadget

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