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-rwxr-xr-xt/t2023-checkout-m.sh77
1 files changed, 77 insertions, 0 deletions
diff --git a/t/t2023-checkout-m.sh b/t/t2023-checkout-m.sh
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+++ b/t/t2023-checkout-m.sh
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+#!/bin/sh
+
+test_description='checkout -m -- <conflicted path>
+
+Ensures that checkout -m on a resolved file restores the conflicted file'
+
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+TEST_PASSES_SANITIZE_LEAK=true
+. ./test-lib.sh
+
+test_expect_success setup '
+ test_tick &&
+ test_commit both.txt both.txt initial &&
+ git branch topic &&
+ test_commit modified_in_main both.txt in_main &&
+ test_commit added_in_main each.txt in_main &&
+ git checkout topic &&
+ test_commit modified_in_topic both.txt in_topic &&
+ test_commit added_in_topic each.txt in_topic
+'
+
+test_expect_success 'git merge main' '
+ test_must_fail git merge main
+'
+
+clean_branchnames () {
+ # Remove branch names after conflict lines
+ sed 's/^\([<>]\{5,\}\) .*$/\1/'
+}
+
+test_expect_success '-m restores 2-way conflicted+resolved file' '
+ cp each.txt each.txt.conflicted &&
+ echo resolved >each.txt &&
+ git add each.txt &&
+ git checkout -m -- each.txt &&
+ clean_branchnames <each.txt >each.txt.cleaned &&
+ clean_branchnames <each.txt.conflicted >each.txt.conflicted.cleaned &&
+ test_cmp each.txt.conflicted.cleaned each.txt.cleaned
+'
+
+test_expect_success '-m restores 3-way conflicted+resolved file' '
+ cp both.txt both.txt.conflicted &&
+ echo resolved >both.txt &&
+ git add both.txt &&
+ git checkout -m -- both.txt &&
+ clean_branchnames <both.txt >both.txt.cleaned &&
+ clean_branchnames <both.txt.conflicted >both.txt.conflicted.cleaned &&
+ test_cmp both.txt.conflicted.cleaned both.txt.cleaned
+'
+
+test_expect_success 'force checkout a conflict file creates stage zero entry' '
+ git init co-force &&
+ (
+ cd co-force &&
+ echo a >a &&
+ git add a &&
+ git commit -ama &&
+ A_OBJ=$(git rev-parse :a) &&
+ git branch topic &&
+ echo b >a &&
+ git commit -amb &&
+ B_OBJ=$(git rev-parse :a) &&
+ git checkout topic &&
+ echo c >a &&
+ C_OBJ=$(git hash-object a) &&
+ git checkout -m main &&
+ test_cmp_rev :1:a $A_OBJ &&
+ test_cmp_rev :2:a $B_OBJ &&
+ test_cmp_rev :3:a $C_OBJ &&
+ git checkout -f topic &&
+ test_cmp_rev :0:a $A_OBJ
+ )
+'
+
+test_done