From 83d842dc8ce4380aa365485b4d9845762f80c6db Mon Sep 17 00:00:00 2001 From: Jeff King Date: Mon, 10 Feb 2014 16:29:37 -0500 Subject: [PATCH] tests: turn on network daemon tests by default We do not run the httpd nor git-daemon tests by default, as they are rather heavyweight and require network access (albeit over localhost). However, it would be nice if more pepole ran them, for two reasons: 1. We would get more test coverage on more systems. 2. The point of the test suite is to find regressions. It is very easy to change some of the underlying code and break the httpd code without realizing you are even affecting it. Running the httpd tests helps find these problems sooner (ideally before the patches even hit the list). We still want to leave an "out", though, for people who really do not want to run them. For that reason, the GIT_TEST_HTTPD and GIT_TEST_GIT_DAEMON variables are now tri-state booleans (true/false/auto), so you can say GIT_TEST_HTTPD=false to turn the tests back off. To support those who want a stable single way to disable these tests across versions of Git before and after this change, an empty string explicitly set to these variables is also taken as "false", so the behaviour changes only for those who: a. did not express any preference by leaving these variables unset. They did not test these features before, but now they do; or b. did express that they want to test these features by setting GIT_TEST_FEATURE=false (or any equivalent other ways to tell "false" to Git, e.g. "0"), which has been a valid but funny way to say that they do want to test the feature only because we used to interpret any non-empty string to mean "yes please test". They no longer test that feature. In addition, we are forgiving of common setup failures (e.g., you do not have apache installed, or have an old version) when the tri-state is "auto" (or unset), but report an error when it is "true". This makes "auto" a sane default, as we should not cause failures on setups where the tests cannot run. But it allows people who use "true" to catch regressions in their system (e.g., they uninstalled apache, but were expecting their automated test runs to test git-httpd, and would want to be notified). Signed-off-by: Jeff King Signed-off-by: Junio C Hamano --- t/lib-git-daemon.sh | 8 ++++--- t/lib-httpd.sh | 22 +++++++++---------- t/test-lib-functions.sh | 58 +++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 74 insertions(+), 14 deletions(-) diff --git a/t/lib-git-daemon.sh b/t/lib-git-daemon.sh index 394b06b32f..615bf5de67 100644 --- a/t/lib-git-daemon.sh +++ b/t/lib-git-daemon.sh @@ -16,9 +16,10 @@ # stop_git_daemon # test_done -if test -z "$GIT_TEST_GIT_DAEMON" +test_tristate GIT_TEST_GIT_DAEMON +if test "$GIT_TEST_GIT_DAEMON" = false then - skip_all="git-daemon testing disabled (define GIT_TEST_GIT_DAEMON to enable)" + skip_all="git-daemon testing disabled (unset GIT_TEST_GIT_DAEMON to enable)" test_done fi @@ -58,7 +59,8 @@ start_git_daemon() { kill "$GIT_DAEMON_PID" wait "$GIT_DAEMON_PID" trap 'die' EXIT - error "git daemon failed to start" + test_skip_or_die $GIT_TEST_GIT_DAEMON \ + "git daemon failed to start" fi } diff --git a/t/lib-httpd.sh b/t/lib-httpd.sh index bfdff2a8c9..f9c2e22e6d 100644 --- a/t/lib-httpd.sh +++ b/t/lib-httpd.sh @@ -30,9 +30,10 @@ # Copyright (c) 2008 Clemens Buchacher # -if test -z "$GIT_TEST_HTTPD" +test_tristate GIT_TEST_HTTPD +if test "$GIT_TEST_HTTPD" = false then - skip_all="Network testing disabled (define GIT_TEST_HTTPD to enable)" + skip_all="Network testing disabled (unset GIT_TEST_HTTPD to enable)" test_done fi @@ -76,8 +77,7 @@ GIT_VALGRIND_OPTIONS=$GIT_VALGRIND_OPTIONS; export GIT_VALGRIND_OPTIONS if ! test -x "$LIB_HTTPD_PATH" then - skip_all="skipping test, no web server found at '$LIB_HTTPD_PATH'" - test_done + test_skip_or_die $GIT_TEST_HTTPD "no web server found at '$LIB_HTTPD_PATH'" fi HTTPD_VERSION=`$LIB_HTTPD_PATH -v | \ @@ -89,19 +89,20 @@ then then if ! test $HTTPD_VERSION -ge 2 then - skip_all="skipping test, at least Apache version 2 is required" - test_done + test_skip_or_die $GIT_TEST_HTTPD \ + "at least Apache version 2 is required" fi if ! test -d "$DEFAULT_HTTPD_MODULE_PATH" then - skip_all="Apache module directory not found. Skipping tests." - test_done + test_skip_or_die $GIT_TEST_HTTPD \ + "Apache module directory not found" fi LIB_HTTPD_MODULE_PATH="$DEFAULT_HTTPD_MODULE_PATH" fi else - error "Could not identify web server at '$LIB_HTTPD_PATH'" + test_skip_or_die $GIT_TEST_HTTPD \ + "Could not identify web server at '$LIB_HTTPD_PATH'" fi prepare_httpd() { @@ -155,9 +156,8 @@ start_httpd() { >&3 2>&4 if test $? -ne 0 then - skip_all="skipping test, web server setup failed" trap 'die' EXIT - test_done + test_skip_or_die $GIT_TEST_HTTPD "web server setup failed" fi } diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh index aeae3ca769..b333e3ff86 100644 --- a/t/test-lib-functions.sh +++ b/t/test-lib-functions.sh @@ -716,6 +716,64 @@ perl () { command "$PERL_PATH" "$@" } +# Is the value one of the various ways to spell a boolean true/false? +test_normalize_bool () { + git -c magic.variable="$1" config --bool magic.variable 2>/dev/null +} + +# Given a variable $1, normalize the value of it to one of "true", +# "false", or "auto" and store the result to it. +# +# test_tristate GIT_TEST_HTTPD +# +# A variable set to an empty string is set to 'false'. +# A variable set to 'false' or 'auto' keeps its value. +# Anything else is set to 'true'. +# An unset variable defaults to 'auto'. +# +# The last rule is to allow people to set the variable to an empty +# string and export it to decline testing the particular feature +# for versions both before and after this change. We used to treat +# both unset and empty variable as a signal for "do not test" and +# took any non-empty string as "please test". + +test_tristate () { + if eval "test x\"\${$1+isset}\" = xisset" + then + # explicitly set + eval " + case \"\$$1\" in + '') $1=false ;; + auto) ;; + *) $1=\$(test_normalize_bool \$$1 || echo true) ;; + esac + " + else + eval "$1=auto" + fi +} + +# Exit the test suite, either by skipping all remaining tests or by +# exiting with an error. If "$1" is "auto", we then we assume we were +# opportunistically trying to set up some tests and we skip. If it is +# "true", then we report a failure. +# +# The error/skip message should be given by $2. +# +test_skip_or_die () { + case "$1" in + auto) + skip_all=$2 + test_done + ;; + true) + error "$2" + ;; + *) + error "BUG: test tristate is '$1' (real error: $2)" + esac +} + # The following mingw_* functions obey POSIX shell syntax, but are actually # bash scripts, and are meant to be used only with bash on Windows. -- 2.11.4.GIT