t7800-difftool.sh tests the various command-line flags,
git-config variables, and environment settings supported by
git-difftool.
Signed-off-by: David Aguilar <davvid@xxxxxxxxx>
---
t/t7800-difftool.sh | 147 +++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 147 insertions(+), 0 deletions(-)
create mode 100755 t/t7800-difftool.sh
diff --git a/t/t7800-difftool.sh b/t/t7800-difftool.sh
new file mode 100755
index 0000000..85946d9
--- /dev/null
+++ b/t/t7800-difftool.sh
@@ -0,0 +1,147 @@
+#!/bin/sh
+#
+# Copyright (c) 2009 David Aguilar
+#
+
+test_description='git-difftool
+
+Testing basic diff tool invocation
+'
+
+. ./test-lib.sh
+
+remove_config_vars()
+{
+ # Unset all config variables used by git-difftool
+ git config --unset diff.tool
+ git config --unset difftool.test-tool.cmd
+ git config --unset merge.tool
+ git config --unset mergetool.test-tool.cmd
+ return 0
+}
+
+restore_test_defaults()
+{
+ # Restores the test defaults used by several tests
+ remove_config_vars
+ unset GIT_DIFF_TOOL
+ unset GIT_MERGE_TOOL
+ unset GIT_DIFFTOOL_NO_PROMPT
+ git config diff.tool test-tool &&
+ git config difftool.test-tool.cmd 'cat $LOCAL'
+}
+
+# Create a file on master and change it on branch
+test_expect_success 'setup' '
+ echo master >file &&
+ git add file &&
+ git commit -m "added file" &&
+
+ git checkout -b branch master &&
+ echo branch >file &&
+ git commit -a -m "branch changed file" &&
+ git checkout master
+'
+
+# Configure a custom difftool.<tool>.cmd and use it
+test_expect_success 'custom commands' '
+ restore_test_defaults &&
+ git config difftool.test-tool.cmd "cat \$REMOTE" &&
+
+ diff=$(git difftool --no-prompt branch) &&
+ test "$diff" = "master" &&
+
+ restore_test_defaults &&
+ diff=$(git difftool --no-prompt branch) &&
+ test "$diff" = "branch"
+'
+
+# Ensures that git-difftool ignores bogus --tool values
+test_expect_success 'difftool ignores bad --tool values' '
+ diff=$(git difftool --no-prompt --tool=bogus-tool branch)
+ test "$?" = 1 &&
+ test "$diff" = ""
+'
+
+# Specify the diff tool using $GIT_DIFF_TOOL
+test_expect_success 'GIT_DIFF_TOOL variable' '
+ git config --unset diff.tool
+ GIT_DIFF_TOOL=test-tool &&
+ export GIT_DIFF_TOOL &&
+
+ diff=$(git difftool --no-prompt branch) &&
+ test "$diff" = "branch" &&
+
+ restore_test_defaults
+'
+
+# Test the $GIT_*_TOOL variables and ensure
+# that $GIT_DIFF_TOOL always wins unless --tool is specified
+test_expect_success 'GIT_DIFF_TOOL overrides' '
+ git config diff.tool bogus-tool &&
+ git config merge.tool bogus-tool &&
+
+ GIT_MERGE_TOOL=test-tool &&
+ export GIT_MERGE_TOOL &&
+ diff=$(git difftool --no-prompt branch) &&
+ test "$diff" = "branch" &&
+ unset GIT_MERGE_TOOL &&
+
+ GIT_MERGE_TOOL=bogus-tool &&
+ GIT_DIFF_TOOL=test-tool &&
+ export GIT_MERGE_TOOL &&
+ export GIT_DIFF_TOOL &&
+
+ diff=$(git difftool --no-prompt branch) &&
+ test "$diff" = "branch" &&
+
+ GIT_DIFF_TOOL=bogus-tool &&
+ export GIT_DIFF_TOOL &&
+
+ diff=$(git difftool --no-prompt --tool=test-tool branch) &&
+ test "$diff" = "branch" &&
+
+ restore_test_defaults
+'
+
+# Test that we don't have to pass --no-prompt to difftool
+# when $GIT_DIFFTOOL_NO_PROMPT is true
+test_expect_success 'GIT_DIFFTOOL_NO_PROMPT variable' '
+ GIT_DIFFTOOL_NO_PROMPT=true &&
+ export GIT_DIFFTOOL_NO_PROMPT &&
+
+ diff=$(git difftool branch) &&
+ test "$diff" = "branch" &&
+
+ restore_test_defaults
+'
+
+# git-difftool falls back to git-mergetool config variables
+# so test that behavior here
+test_expect_success 'difftool + mergetool config variables' '
+ remove_config_vars
+ git config merge.tool test-tool &&
+ git config mergetool.test-tool.cmd "cat \$LOCAL" &&
+
+ diff=$(git difftool --no-prompt branch) &&
+ test "$diff" = "branch" &&
+
+ # set merge.tool to something bogus, diff.tool to test-tool
+ git config merge.tool bogus-tool &&
+ git config diff.tool test-tool &&
+
+ diff=$(git difftool --no-prompt branch) &&
+ test "$diff" = "branch" &&
+
+ restore_test_defaults
+'
+
+test_expect_success 'difftool.<tool>.path' '
+ git config difftool.tkdiff.path echo &&
+ diff=$(git difftool --no-prompt -t tkdiff branch) &&
+ git config --unset difftool.tkdiff.path &&
+ lines=$(echo "$diff" | grep file | wc -l) &&
+ test "$lines" = 1
+'
+
+test_done
--
1.6.2.2.414.g81aa9
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