diff options
Diffstat (limited to 't/interop')
| -rw-r--r-- | t/interop/.gitignore | 4 | ||||
| -rw-r--r-- | t/interop/Makefile | 16 | ||||
| -rw-r--r-- | t/interop/README | 85 | ||||
| -rwxr-xr-x | t/interop/i0000-basic.sh | 27 | ||||
| -rwxr-xr-x | t/interop/i5500-git-daemon.sh | 40 | ||||
| -rwxr-xr-x | t/interop/i5700-protocol-transition.sh | 68 | ||||
| -rw-r--r-- | t/interop/interop-lib.sh | 92 |
7 files changed, 332 insertions, 0 deletions
diff --git a/t/interop/.gitignore b/t/interop/.gitignore new file mode 100644 index 0000000000..49c78d3dba --- /dev/null +++ b/t/interop/.gitignore @@ -0,0 +1,4 @@ +/trash directory*/ +/test-results/ +/.prove/ +/build/ diff --git a/t/interop/Makefile b/t/interop/Makefile new file mode 100644 index 0000000000..31a4bbc716 --- /dev/null +++ b/t/interop/Makefile @@ -0,0 +1,16 @@ +-include ../../config.mak +export GIT_TEST_OPTIONS + +SHELL_PATH ?= $(SHELL) +SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH)) +T = $(sort $(wildcard i[0-9][0-9][0-9][0-9]-*.sh)) + +all: $(T) + +$(T): + @echo "*** $@ ***"; '$(SHELL_PATH_SQ)' $@ $(GIT_TEST_OPTS) + +clean: + rm -rf build "trash directory".* test-results + +.PHONY: all clean $(T) diff --git a/t/interop/README b/t/interop/README new file mode 100644 index 0000000000..72d42bd856 --- /dev/null +++ b/t/interop/README @@ -0,0 +1,85 @@ +Git version interoperability tests +================================== + +This directory has interoperability tests for git. Each script is +similar to the normal test scripts found in t/, but with the added twist +that two special versions of git, "git.a" and "git.b", are available in +the PATH. Individual tests can then check the interaction between the +two versions. + +When you add a feature that handles backwards compatibility between git +versions, it's encouraged to add a test here to make sure it behaves as +you expect. + + +Running Tests +------------- + +The easiest way to run tests is to say "make". This runs all +the tests against their default versions. + +You can run a single test like: + + $ ./i0000-basic.sh + ok 1 - bare git is forbidden + ok 2 - git.a version (v1.6.6.3) + ok 3 - git.b version (v2.11.1) + # passed all 3 test(s) + 1..3 + +Each test contains default versions to run against. You may override +these by setting `GIT_TEST_VERSION_A` and `GIT_TEST_VERSION_B` in the +environment. Note that not all combinations will give sensible outcomes +for all tests (e.g., a test checking for a specific old/new interaction +may want something "old" enough" and something "new" enough; see +individual tests for details). + +Version names should be resolvable as revisions in the current +repository. They will be exported and built as needed using the +config.mak files found at the root of your working tree. + +The exception is the special version "." which uses the currently-built +contents of your working tree. + +You can set the following variables (in the environment or in your config.mak): + + GIT_INTEROP_MAKE_OPTS + Options to pass to `make` when building a git version (e.g., + `-j8`). + +You can also pass any command-line options taken by ordinary git tests (e.g., +"-v"). + + +Naming Tests +------------ + +The interop test files are named like: + + iNNNN-short-description.sh + +where N is a decimal digit. The same conventions for choosing NNNN as +for normal tests apply. + + +Writing Tests +------------- + +An interop test script starts like a normal script, declaring a few +variables and then including interop-lib.sh (which includes test-lib.sh). +Besides test_description, you should also set the $VERSION_A and $VERSION_B +variables to give the default versions to test against. See t0000-basic.sh for +an example. + +You can then use test_expect_success as usual, with a few differences: + + 1. The special commands "git.a" and "git.b" correspond to the + two versions. + + 2. You cannot call a bare "git". This is to prevent accidents where + you meant "git.a" or "git.b". + + 3. The trash directory is _not_ a git repository by default. You + should create one with the appropriate version of git. + +At the end of the script, call test_done as usual. diff --git a/t/interop/i0000-basic.sh b/t/interop/i0000-basic.sh new file mode 100755 index 0000000000..903e9193f8 --- /dev/null +++ b/t/interop/i0000-basic.sh @@ -0,0 +1,27 @@ +#!/bin/sh + +# Note that this test only works on real version numbers, +# as it depends on matching the output to "git version". +VERSION_A=v1.6.6.3 +VERSION_B=v2.11.1 + +test_description='sanity test interop library' +. ./interop-lib.sh + +test_expect_success 'bare git is forbidden' ' + test_must_fail git version +' + +test_expect_success "git.a version ($VERSION_A)" ' + echo git version ${VERSION_A#v} >expect && + git.a version >actual && + test_cmp expect actual +' + +test_expect_success "git.b version ($VERSION_B)" ' + echo git version ${VERSION_B#v} >expect && + git.b version >actual && + test_cmp expect actual +' + +test_done diff --git a/t/interop/i5500-git-daemon.sh b/t/interop/i5500-git-daemon.sh new file mode 100755 index 0000000000..4d22e42f84 --- /dev/null +++ b/t/interop/i5500-git-daemon.sh @@ -0,0 +1,40 @@ +#!/bin/sh + +VERSION_A=. +VERSION_B=v1.0.0 + +: ${LIB_GIT_DAEMON_PORT:=5500} +LIB_GIT_DAEMON_COMMAND='git.a daemon' + +test_description='clone and fetch by older client' +. ./interop-lib.sh +. "$TEST_DIRECTORY"/lib-git-daemon.sh + +start_git_daemon --export-all + +repo=$GIT_DAEMON_DOCUMENT_ROOT_PATH/repo + +test_expect_success "create repo served by $VERSION_A" ' + git.a init "$repo" && + git.a -C "$repo" commit --allow-empty -m one +' + +test_expect_success "clone with $VERSION_B" ' + git.b clone "$GIT_DAEMON_URL/repo" child && + echo one >expect && + git.a -C child log -1 --format=%s >actual && + test_cmp expect actual +' + +test_expect_success "fetch with $VERSION_B" ' + git.a -C "$repo" commit --allow-empty -m two && + ( + cd child && + git.b fetch + ) && + echo two >expect && + git.a -C child log -1 --format=%s FETCH_HEAD >actual && + test_cmp expect actual +' + +test_done diff --git a/t/interop/i5700-protocol-transition.sh b/t/interop/i5700-protocol-transition.sh new file mode 100755 index 0000000000..97e8e580ef --- /dev/null +++ b/t/interop/i5700-protocol-transition.sh @@ -0,0 +1,68 @@ +#!/bin/sh + +VERSION_A=. +VERSION_B=v2.0.0 + +: ${LIB_GIT_DAEMON_PORT:=5700} +LIB_GIT_DAEMON_COMMAND='git.b daemon' + +test_description='clone and fetch by client who is trying to use a new protocol' +. ./interop-lib.sh +. "$TEST_DIRECTORY"/lib-git-daemon.sh + +start_git_daemon --export-all + +repo=$GIT_DAEMON_DOCUMENT_ROOT_PATH/repo + +test_expect_success "create repo served by $VERSION_B" ' + git.b init "$repo" && + git.b -C "$repo" commit --allow-empty -m one +' + +test_expect_success "git:// clone with $VERSION_A and protocol v1" ' + GIT_TRACE_PACKET=1 git.a -c protocol.version=1 clone "$GIT_DAEMON_URL/repo" child 2>log && + git.a -C child log -1 --format=%s >actual && + git.b -C "$repo" log -1 --format=%s >expect && + test_cmp expect actual && + grep "version=1" log +' + +test_expect_success "git:// fetch with $VERSION_A and protocol v1" ' + git.b -C "$repo" commit --allow-empty -m two && + git.b -C "$repo" log -1 --format=%s >expect && + + GIT_TRACE_PACKET=1 git.a -C child -c protocol.version=1 fetch 2>log && + git.a -C child log -1 --format=%s FETCH_HEAD >actual && + + test_cmp expect actual && + grep "version=1" log && + ! grep "version 1" log +' + +stop_git_daemon + +test_expect_success "create repo served by $VERSION_B" ' + git.b init parent && + git.b -C parent commit --allow-empty -m one +' + +test_expect_success "file:// clone with $VERSION_A and protocol v1" ' + GIT_TRACE_PACKET=1 git.a -c protocol.version=1 clone --upload-pack="git.b upload-pack" parent child2 2>log && + git.a -C child2 log -1 --format=%s >actual && + git.b -C parent log -1 --format=%s >expect && + test_cmp expect actual && + ! grep "version 1" log +' + +test_expect_success "file:// fetch with $VERSION_A and protocol v1" ' + git.b -C parent commit --allow-empty -m two && + git.b -C parent log -1 --format=%s >expect && + + GIT_TRACE_PACKET=1 git.a -C child2 -c protocol.version=1 fetch --upload-pack="git.b upload-pack" 2>log && + git.a -C child2 log -1 --format=%s FETCH_HEAD >actual && + + test_cmp expect actual && + ! grep "version 1" log +' + +test_done diff --git a/t/interop/interop-lib.sh b/t/interop/interop-lib.sh new file mode 100644 index 0000000000..3e0a2911d4 --- /dev/null +++ b/t/interop/interop-lib.sh @@ -0,0 +1,92 @@ +# Interoperability testing framework. Each script should source +# this after setting default $VERSION_A and $VERSION_B variables. + +. ../../GIT-BUILD-OPTIONS +INTEROP_ROOT=$(pwd) +BUILD_ROOT=$INTEROP_ROOT/build + +build_version () { + if test -z "$1" + then + echo >&2 "error: test script did not set default versions" + return 1 + fi + + if test "$1" = "." + then + git rev-parse --show-toplevel + return 0 + fi + + sha1=$(git rev-parse "$1^{tree}") || return 1 + dir=$BUILD_ROOT/$sha1 + + if test -e "$dir/.built" + then + echo "$dir" + return 0 + fi + + echo >&2 "==> Building $1..." + + mkdir -p "$dir" || return 1 + + (cd "$(git rev-parse --show-cdup)" && git archive --format=tar "$sha1") | + (cd "$dir" && tar x) || + return 1 + + for config in config.mak config.mak.autogen config.status + do + if test -e "$INTEROP_ROOT/../../$config" + then + cp "$INTEROP_ROOT/../../$config" "$dir/" || return 1 + fi + done + + ( + cd "$dir" && + make $GIT_INTEROP_MAKE_OPTS >&2 && + touch .built + ) || return 1 + + echo "$dir" +} + +# Old versions of git don't have bin-wrappers, so let's give a rough emulation. +wrap_git () { + write_script "$1" <<-EOF + GIT_EXEC_PATH="$2" + export GIT_EXEC_PATH + PATH="$2:\$PATH" + export GIT_EXEC_PATH + exec git "\$@" + EOF +} + +generate_wrappers () { + mkdir -p .bin && + wrap_git .bin/git.a "$DIR_A" && + wrap_git .bin/git.b "$DIR_B" && + write_script .bin/git <<-\EOF && + echo >&2 fatal: test tried to run generic git + exit 1 + EOF + PATH=$(pwd)/.bin:$PATH +} + +VERSION_A=${GIT_TEST_VERSION_A:-$VERSION_A} +VERSION_B=${GIT_TEST_VERSION_B:-$VERSION_B} + +if ! DIR_A=$(build_version "$VERSION_A") || + ! DIR_B=$(build_version "$VERSION_B") +then + echo >&2 "fatal: unable to build git versions" + exit 1 +fi + +TEST_DIRECTORY=$INTEROP_ROOT/.. +TEST_OUTPUT_DIRECTORY=$INTEROP_ROOT +TEST_NO_CREATE_REPO=t +. "$TEST_DIRECTORY"/test-lib.sh + +generate_wrappers || die "unable to set up interop test environment" |