From c93966906f5d578d06eee0ead8745e608a6e18cf Mon Sep 17 00:00:00 2001 From: Christian Couder Date: Wed, 30 Dec 2009 06:54:46 +0100 Subject: [PATCH] reset: add a few tests for "git reset --merge" Commit 9e8eceab ("Add 'merge' mode to 'git reset'", 2008-12-01), added the --merge option to git reset, but there were no test cases for it. This was not a big problem because "git reset" was just forking and execing "git read-tree", but this will change in a following patch. So let's add a few test cases to make sure that there will be no regression. Signed-off-by: Christian Couder Signed-off-by: Junio C Hamano --- t/t7110-reset-merge.sh | 159 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 159 insertions(+) create mode 100755 t/t7110-reset-merge.sh diff --git a/t/t7110-reset-merge.sh b/t/t7110-reset-merge.sh new file mode 100755 index 000000000..4c46083be --- /dev/null +++ b/t/t7110-reset-merge.sh @@ -0,0 +1,159 @@ +#!/bin/sh +# +# Copyright (c) 2009 Christian Couder +# + +test_description='Tests for "git reset --merge"' + +. ./test-lib.sh + +test_expect_success setup ' + for i in 1 2 3; do echo line $i; done >file1 && + cat file1 >file2 && + git add file1 file2 && + test_tick && + git commit -m "Initial commit" && + git tag initial && + echo line 4 >>file1 && + cat file1 >file2 && + test_tick && + git commit -m "add line 4 to file1" file1 && + git tag second +' + +# The next test will test the following: +# +# working index HEAD target working index HEAD +# ---------------------------------------------------- +# file1: C C C D --merge D D D +# file2: C D D D --merge C D D +test_expect_success 'reset --merge is ok with changes in file it does not touch' ' + git reset --merge HEAD^ && + ! grep 4 file1 && + grep 4 file2 && + test "$(git rev-parse HEAD)" = "$(git rev-parse initial)" && + test -z "$(git diff --cached)" +' + +test_expect_success 'reset --merge is ok when switching back' ' + git reset --merge second && + grep 4 file1 && + grep 4 file2 && + test "$(git rev-parse HEAD)" = "$(git rev-parse second)" && + test -z "$(git diff --cached)" +' + +# The next test will test the following: +# +# working index HEAD target working index HEAD +# ---------------------------------------------------- +# file1: B B C D --merge D D D +# file2: C D D D --merge C D D +test_expect_success 'reset --merge discards changes added to index (1)' ' + git reset --hard second && + cat file1 >file2 && + echo "line 5" >> file1 && + git add file1 && + git reset --merge HEAD^ && + ! grep 4 file1 && + ! grep 5 file1 && + grep 4 file2 && + test "$(git rev-parse HEAD)" = "$(git rev-parse initial)" && + test -z "$(git diff --cached)" +' + +test_expect_success 'reset --merge is ok again when switching back (1)' ' + git reset --hard initial && + echo "line 5" >> file2 && + git add file2 && + git reset --merge second && + ! grep 4 file2 && + ! grep 5 file1 && + grep 4 file1 && + test "$(git rev-parse HEAD)" = "$(git rev-parse second)" && + test -z "$(git diff --cached)" +' + +# The next test will test the following: +# +# working index HEAD target working index HEAD +# ---------------------------------------------------- +# file1: C C C D --merge D D D +# file2: C C D D --merge D D D +test_expect_success 'reset --merge discards changes added to index (2)' ' + git reset --hard second && + echo "line 4" >> file2 && + git add file2 && + git reset --merge HEAD^ && + ! grep 4 file2 && + test "$(git rev-parse HEAD)" = "$(git rev-parse initial)" && + test -z "$(git diff)" && + test -z "$(git diff --cached)" +' + +test_expect_success 'reset --merge is ok again when switching back (2)' ' + git reset --hard initial && + git reset --merge second && + ! grep 4 file2 && + grep 4 file1 && + test "$(git rev-parse HEAD)" = "$(git rev-parse second)" && + test -z "$(git diff --cached)" +' + +# The next test will test the following: +# +# working index HEAD target working index HEAD +# ---------------------------------------------------- +# file1: A B B C --merge (disallowed) +test_expect_success 'reset --merge fails with changes in file it touches' ' + git reset --hard second && + echo "line 5" >> file1 && + test_tick && + git commit -m "add line 5" file1 && + sed -e "s/line 1/changed line 1/" file3 && + mv file3 file1 && + test_must_fail git reset --merge HEAD^ 2>err.log && + grep file1 err.log | grep "not uptodate" +' + +test_expect_success 'setup 2 different branches' ' + git reset --hard second && + git branch branch1 && + git branch branch2 && + git checkout branch1 && + echo "line 5 in branch1" >> file1 && + test_tick && + git commit -a -m "change in branch1" && + git checkout branch2 && + echo "line 5 in branch2" >> file1 && + test_tick && + git commit -a -m "change in branch2" && + git tag third +' + +# The next test will test the following: +# +# working index HEAD target working index HEAD +# ---------------------------------------------------- +# file1: X U B C --merge (disallowed) +test_expect_success '"reset --merge HEAD^" fails with pending merge' ' + test_must_fail git merge branch1 && + test_must_fail git reset --merge HEAD^ && + test "$(git rev-parse HEAD)" = "$(git rev-parse third)" && + test -n "$(git diff --cached)" +' + +# The next test will test the following: +# +# working index HEAD target working index HEAD +# ---------------------------------------------------- +# file1: X U B B --merge (disallowed) +test_expect_success '"reset --merge HEAD" fails with pending merge' ' + git reset --hard third && + test_must_fail git merge branch1 && + test_must_fail git reset --merge HEAD && + test "$(git rev-parse HEAD)" = "$(git rev-parse third)" && + test -n "$(git diff --cached)" +' + +test_done -- 2.26.2