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-rwxr-xr-xt/t2022-checkout-paths.sh81
1 files changed, 81 insertions, 0 deletions
diff --git a/t/t2022-checkout-paths.sh b/t/t2022-checkout-paths.sh
new file mode 100755
index 0000000000..f46d0499bc
--- /dev/null
+++ b/t/t2022-checkout-paths.sh
@@ -0,0 +1,81 @@
+#!/bin/sh
+
+test_description='checkout $tree -- $paths'
+. ./test-lib.sh
+
+test_expect_success setup '
+ mkdir dir &&
+ >dir/master &&
+ echo common >dir/common &&
+ git add dir/master dir/common &&
+ test_tick && git commit -m "master has dir/master" &&
+ git checkout -b next &&
+ git mv dir/master dir/next0 &&
+ echo next >dir/next1 &&
+ git add dir &&
+ test_tick && git commit -m "next has dir/next but not dir/master"
+'
+
+test_expect_success 'checking out paths out of a tree does not clobber unrelated paths' '
+ git checkout next &&
+ git reset --hard &&
+ rm dir/next0 &&
+ cat dir/common >expect.common &&
+ echo modified >expect.next1 &&
+ cat expect.next1 >dir/next1 &&
+ echo untracked >expect.next2 &&
+ cat expect.next2 >dir/next2 &&
+
+ git checkout master dir &&
+
+ test_cmp expect.common dir/common &&
+ test_path_is_file dir/master &&
+ git diff --exit-code master dir/master &&
+
+ test_path_is_missing dir/next0 &&
+ test_cmp expect.next1 dir/next1 &&
+ test_path_is_file dir/next2 &&
+ test_must_fail git ls-files --error-unmatch dir/next2 &&
+ test_cmp expect.next2 dir/next2
+'
+
+test_expect_success 'do not touch unmerged entries matching $path but not in $tree' '
+ git checkout next &&
+ git reset --hard &&
+
+ cat dir/common >expect.common &&
+ EMPTY_SHA1=$(git hash-object -w --stdin </dev/null) &&
+ git rm dir/next0 &&
+ cat >expect.next0 <<-EOF &&
+ 100644 $EMPTY_SHA1 1 dir/next0
+ 100644 $EMPTY_SHA1 2 dir/next0
+ EOF
+ git update-index --index-info <expect.next0 &&
+
+ git checkout master dir &&
+
+ test_cmp expect.common dir/common &&
+ test_path_is_file dir/master &&
+ git diff --exit-code master dir/master &&
+ git ls-files -s dir/next0 >actual.next0 &&
+ test_cmp expect.next0 actual.next0
+'
+
+test_expect_success 'do not touch files that are already up-to-date' '
+ git reset --hard &&
+ echo one >file1 &&
+ echo two >file2 &&
+ git add file1 file2 &&
+ git commit -m base &&
+ echo modified >file1 &&
+ test-chmtime =1000000000 file2 &&
+ git update-index -q --refresh &&
+ git checkout HEAD -- file1 file2 &&
+ echo one >expect &&
+ test_cmp expect file1 &&
+ echo "1000000000 file2" >expect &&
+ test-chmtime -v +0 file2 >actual &&
+ test_cmp expect actual
+'
+
+test_done