Merge git://repo.or.cz/git-gui

[git.git] / t / test-lib.sh

diff --git a/t/test-lib.sh b/t/test-lib.sh
index 6aea0ea0a579973c9baddff608ea92445ef9fcbb..5002fb04b58ea91572b58dcaf7fe92342f4eeab1 100644 (file)
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -42,6 +42,7 @@ export GIT_MERGE_VERBOSITY
 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
 export EDITOR VISUAL
+GIT_TEST_CMP=${GIT_TEST_CMP:-diff -u}
 
 # Protect ourselves from common misconfiguration to export
 # CDPATH into the environment
@@ -159,6 +160,22 @@ die () {
 
 trap 'die' exit
 
+# The semantics of the editor variables are that of invoking
+# sh -c "$EDITOR \"$@\"" files ...
+#
+# If our trash directory contains shell metacharacters, they will be
+# interpreted if we just set $EDITOR directly, so do a little dance with
+# environment variables to work around this.
+#
+# In particular, quoting isn't enough, as the path may contain the same quote
+# that we're using. 
+test_set_editor () {
+       FAKE_EDITOR="$1"
+       export FAKE_EDITOR
+       VISUAL='"$FAKE_EDITOR"'
+       export VISUAL
+}
+
 test_tick () {
        if test -z "${test_tick+set}"
        then
@@ -299,7 +316,24 @@ test_expect_code () {
 
 test_must_fail () {
        "$@"
-       test $? -gt 0 -a $? -le 128
+       test $? -gt 0 -a $? -le 129
+}
+
+# test_cmp is a helper function to compare actual and expected output.
+# You can use it like:
+#
+#      test_expect_success 'foo works' '
+#              echo expected >expected &&
+#              foo >actual &&
+#              test_cmp expected actual
+#      '
+#
+# This could be written as either "cmp" or "diff -u", but:
+# - cmp's output is not nearly as easy to read as diff -u
+# - not all diff versions understand "-u"
+
+test_cmp() {
+       $GIT_TEST_CMP "$@"
 }
 
 # Most tests can use the created repository, but some may need to create more.
@@ -311,7 +345,7 @@ test_create_repo () {
        repo="$1"
        mkdir "$repo"
        cd "$repo" || error "Cannot setup test environment"
-       "$GIT_EXEC_PATH/git" init --template=$GIT_EXEC_PATH/templates/blt/ >/dev/null 2>&1 ||
+       "$GIT_EXEC_PATH/git" init "--template=$GIT_EXEC_PATH/templates/blt/" >/dev/null 2>&1 ||
        error "cannot run git init -- have you built things yet?"
        mv .git/hooks .git/hooks-disabled
        cd "$owd"
@@ -377,9 +411,14 @@ fi
 . ../GIT-BUILD-OPTIONS
 
 # Test repository
-test=trash
-rm -fr "$test"
-test_create_repo $test
+test="trash directory"
+rm -fr "$test" || {
+       trap - exit
+       echo >&5 "FATAL: Cannot prepare test area"
+       exit 1
+}
+
+test_create_repo "$test"
 cd "$test"
 
 this_test=$(expr "./$0" : '.*/\(t[0-9]*\)-[^/]*$')