tests: scrub environment of GIT_* variables

diff --git a/t/t4013-diff-various.sh b/t/t4013-diff-various.sh
index 426e64e828cfe6efaa7281f30fa8d4e676265107..b8f81d07c33d3596fef5f5a361f4774d5e357fca 100755 (executable)
--- a/t/t4013-diff-various.sh
+++ b/t/t4013-diff-various.sh
@@ -204,9 +204,17 @@ log --root --patch-with-stat --summary master
 log --root -c --patch-with-stat --summary master
 # improved by Timo's patch
 log --root --cc --patch-with-stat --summary master
+log -p --first-parent master
+log -m -p --first-parent master
+log -m -p master
 log -SF master
+log -S F master
 log -SF -p master
+log -GF master
+log -GF -p master
+log -GF -p --pickaxe-all master
 log --decorate --all
+log --decorate=full --all
 
 rev-list --parents HEAD
 rev-list --children HEAD
@@ -234,6 +242,9 @@ show initial
 show --root initial
 show side
 show master
+show -c master
+show -m master
+show --first-parent master
 show --stat side
 show --stat --summary side
 show --patch-with-stat side
@@ -246,11 +257,12 @@ format-patch --stdout initial..master
 format-patch --stdout --no-numbered initial..master
 format-patch --stdout --numbered initial..master
 format-patch --attach --stdout initial..side
+format-patch --attach --stdout --suffix=.diff initial..side
 format-patch --attach --stdout initial..master^
 format-patch --attach --stdout initial..master
 format-patch --inline --stdout initial..side
 format-patch --inline --stdout initial..master^
-format-patch --inline --stdout initial..master
+format-patch --inline --stdout --numbered-files initial..master
 format-patch --inline --stdout initial..master
 format-patch --inline --stdout --subject-prefix=TESTCASE initial..master
 config format.subjectprefix DIFFERENT_PREFIX
@@ -274,4 +286,19 @@ diff master master^ side
 diff --dirstat master~1 master~2
 EOF
 
+test_expect_success 'log -S requires an argument' '
+       test_must_fail git log -S
+'
+
+test_expect_success 'diff --cached on unborn branch' '
+       echo ref: refs/heads/unborn >.git/HEAD &&
+       git diff --cached >result &&
+       test_cmp "$TEST_DIRECTORY/t4013/diff.diff_--cached" result
+'
+
+test_expect_success 'diff --cached -- file on unborn branch' '
+       git diff --cached -- file0 >result &&
+       test_cmp "$TEST_DIRECTORY/t4013/diff.diff_--cached_--_file0" result
+'
+
 test_done