Update test-lib.sh from current git.

Updated with changes to git up to rev
664368886781b7c070233c002597b84628eec571, including:

* GIT_SKIP_TESTS support, useful to run the testsuite bypassing tests
known to fail
* test_tick utility function to forge realistic commit dates
* deprecation of git-init-db in favor of git-init
* more environment safety cleanups

Signed-off-by: Yann Dirson <ydirson@altern.org>

diff --git a/t/test-lib.sh b/t/test-lib.sh
old mode 100755 (executable)
new mode 100644 (file)
index d50a3ba..4bb00fb
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -10,11 +10,14 @@ LC_ALL=C
 PAGER=cat
 TZ=UTC
 export LANG LC_ALL PAGER TZ
+EDITOR=:
+VISUAL=:
 unset AUTHOR_DATE
 unset AUTHOR_EMAIL
 unset AUTHOR_NAME
 unset COMMIT_AUTHOR_EMAIL
 unset COMMIT_AUTHOR_NAME
+unset EMAIL
 unset GIT_ALTERNATE_OBJECT_DIRECTORIES
 unset GIT_AUTHOR_DATE
 #GIT_AUTHOR_EMAIL=author@example.com
@@ -29,8 +32,24 @@ unset GIT_INDEX_FILE
 unset GIT_OBJECT_DIRECTORY
 unset SHA1_FILE_DIRECTORIES
 unset SHA1_FILE_DIRECTORY
+GIT_MERGE_VERBOSITY=5
+export GIT_MERGE_VERBOSITY
 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
+export EDITOR VISUAL
+
+# Protect ourselves from common misconfiguration to export
+# CDPATH into the environment
+unset CDPATH
+
+case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
+       1|2|true)
+               echo "* warning: Some tests will not work if GIT_TRACE" \
+                       "is set as to trace on STDERR ! *"
+               echo "* warning: Please set GIT_TRACE to something" \
+                       "other than 1, 2 or true ! *"
+               ;;
+esac
 
 # Each test should start with something like this, after copyright notices:
 #
@@ -83,6 +102,17 @@ test_count=0
 
 trap 'echo >&5 "FATAL: Unexpected exit with code $?"; exit 1' exit
 
+test_tick () {
+       if test -z "${test_tick+set}"
+       then
+               test_tick=1112911993
+       else
+               test_tick=$(($test_tick + 60))
+       fi
+       GIT_COMMITTER_DATE="$test_tick -0700"
+       GIT_AUTHOR_DATE="$test_tick -0700"
+       export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
+}
 
 # You are not expected to call test_ok_ and test_failure_ directly, use
 # the text_expect_* functions instead.
@@ -112,43 +142,79 @@ test_run_ () {
        return 0
 }
 
+test_skip () {
+       this_test=$(expr "./$0" : '.*/\(t[0-9]*\)-[^/]*$')
+       this_test="$this_test.$(expr "$test_count" + 1)"
+       to_skip=
+       for skp in $GIT_SKIP_TESTS
+       do
+               case "$this_test" in
+               $skp)
+                       to_skip=t
+               esac
+       done
+       case "$to_skip" in
+       t)
+               say >&3 "skipping test: $@"
+               test_count=$(expr "$test_count" + 1)
+               say "skip $test_count: $1"
+               : true
+               ;;
+       *)
+               false
+               ;;
+       esac
+}
+
 test_expect_failure () {
        test "$#" = 2 ||
        error "bug in the test script: not 2 parameters to test-expect-failure"
-       say >&3 "expecting failure: $2"
-       test_run_ "$2"
-       if [ "$?" = 0 -a "$eval_ret" != 0 ]
+       if ! test_skip "$@"
        then
-               test_ok_ "$1"
-       else
-               test_failure_ "$@"
+               say >&3 "expecting failure: $2"
+               test_run_ "$2"
+               if [ "$?" = 0 -a "$eval_ret" != 0 -a "$eval_ret" -lt 129 ]
+               then
+                       test_ok_ "$1"
+               else
+                       test_failure_ "$@"
+               fi
        fi
+       echo >&3 ""
 }
 
 test_expect_success () {
        test "$#" = 2 ||
        error "bug in the test script: not 2 parameters to test-expect-success"
-       say >&3 "expecting success: $2"
-       test_run_ "$2"
-       if [ "$?" = 0 -a "$eval_ret" = 0 ]
+       if ! test_skip "$@"
        then
-               test_ok_ "$1"
-       else
-               test_failure_ "$@"
+               say >&3 "expecting success: $2"
+               test_run_ "$2"
+               if [ "$?" = 0 -a "$eval_ret" = 0 ]
+               then
+                       test_ok_ "$1"
+               else
+                       test_failure_ "$@"
+               fi
        fi
+       echo >&3 ""
 }
 
 test_expect_code () {
        test "$#" = 3 ||
        error "bug in the test script: not 3 parameters to test-expect-code"
-       say >&3 "expecting exit code $1: $3"
-       test_run_ "$3"
-       if [ "$?" = 0 -a "$eval_ret" = "$1" ]
+       if ! test_skip "$@"
        then
-               test_ok_ "$2"
-       else
-               test_failure_ "$@"
+               say >&3 "expecting exit code $1: $3"
+               test_run_ "$3"
+               if [ "$?" = 0 -a "$eval_ret" = "$1" ]
+               then
+                       test_ok_ "$2"
+               else
+                       test_failure_ "$@"
+               fi
        fi
+       echo >&3 ""
 }
 
 # Most tests can use the created repository, but some amy need to create more.
@@ -160,8 +226,8 @@ test_create_repo () {
        repo="$1"
        mkdir "$repo"
        cd "$repo" || error "Cannot setup test environment"
-       git-init-db >&3 2>&4 ||
-       error "cannot run git-init-db -- have you installed git-core?"
+       git-init >/dev/null 2>&1 ||
+       error "cannot run git-init -- have you installed git-core?"
        mv .git/hooks .git/hooks-disabled
        echo "empty start" |
        git-commit-tree `git-write-tree` >.git/refs/heads/master 2>&4 ||
@@ -195,7 +261,8 @@ test_done () {
 # t/ subdirectory and are run in trash subdirectory.
 PATH=$(pwd)/..:$PATH
 HOME=$(pwd)/trash
-export PATH HOME
+GIT_CONFIG=.git/config
+export PATH HOME GIT_CONFIG
 
 
 # Test repository
@@ -203,3 +270,22 @@ test=trash
 rm -fr "$test"
 test_create_repo $test
 cd "$test"
+
+this_test=$(expr "./$0" : '.*/\(t[0-9]*\)-[^/]*$')
+for skp in $GIT_SKIP_TESTS
+do
+       to_skip=
+       for skp in $GIT_SKIP_TESTS
+       do
+               case "$this_test" in
+               $skp)
+                       to_skip=t
+               esac
+       done
+       case "$to_skip" in
+       t)
+               say >&3 "skipping test $this_test altogether"
+               say "skip all tests in $this_test"
+               test_done
+       esac
+done