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-rwxr-xr-xt/t2016-checkout-patch.sh133
1 files changed, 133 insertions, 0 deletions
diff --git a/t/t2016-checkout-patch.sh b/t/t2016-checkout-patch.sh
new file mode 100755
index 0000000..a5822e4
--- /dev/null
+++ b/t/t2016-checkout-patch.sh
@@ -0,0 +1,133 @@
+#!/bin/sh
+
+test_description='git checkout --patch'
+
+. ./lib-patch-mode.sh
+
+if ! test_have_prereq ADD_I_USE_BUILTIN && ! test_have_prereq PERL
+then
+ skip_all='skipping interactive add tests, PERL not set'
+ test_done
+fi
+
+test_expect_success 'setup' '
+ mkdir dir &&
+ echo parent > dir/foo &&
+ echo dummy > bar &&
+ git add bar dir/foo &&
+ git commit -m initial &&
+ test_tick &&
+ test_commit second dir/foo head &&
+ set_and_save_state bar bar_work bar_index &&
+ save_head
+'
+
+# note: bar sorts before dir/foo, so the first 'n' is always to skip 'bar'
+
+test_expect_success 'saying "n" does nothing' '
+ set_and_save_state dir/foo work head &&
+ test_write_lines n n | git checkout -p &&
+ verify_saved_state bar &&
+ verify_saved_state dir/foo
+'
+
+test_expect_success 'git checkout -p' '
+ test_write_lines n y | git checkout -p &&
+ verify_saved_state bar &&
+ verify_state dir/foo head head
+'
+
+test_expect_success 'git checkout -p with staged changes' '
+ set_state dir/foo work index &&
+ test_write_lines n y | git checkout -p &&
+ verify_saved_state bar &&
+ verify_state dir/foo index index
+'
+
+test_expect_success 'git checkout -p HEAD with NO staged changes: abort' '
+ set_and_save_state dir/foo work head &&
+ test_write_lines n y n | git checkout -p HEAD &&
+ verify_saved_state bar &&
+ verify_saved_state dir/foo
+'
+
+test_expect_success 'git checkout -p HEAD with NO staged changes: apply' '
+ test_write_lines n y y | git checkout -p HEAD &&
+ verify_saved_state bar &&
+ verify_state dir/foo head head
+'
+
+test_expect_success 'git checkout -p HEAD with change already staged' '
+ set_state dir/foo index index &&
+ # the third n is to get out in case it mistakenly does not apply
+ test_write_lines n y n | git checkout -p HEAD &&
+ verify_saved_state bar &&
+ verify_state dir/foo head head
+'
+
+test_expect_success 'git checkout -p HEAD^...' '
+ # the third n is to get out in case it mistakenly does not apply
+ test_write_lines n y n | git checkout -p HEAD^... &&
+ verify_saved_state bar &&
+ verify_state dir/foo parent parent
+'
+
+test_expect_success 'git checkout -p HEAD^' '
+ # the third n is to get out in case it mistakenly does not apply
+ test_write_lines n y n | git checkout -p HEAD^ &&
+ verify_saved_state bar &&
+ verify_state dir/foo parent parent
+'
+
+test_expect_success 'git checkout -p handles deletion' '
+ set_state dir/foo work index &&
+ rm dir/foo &&
+ test_write_lines n y | git checkout -p &&
+ verify_saved_state bar &&
+ verify_state dir/foo index index
+'
+
+# The idea in the rest is that bar sorts first, so we always say 'y'
+# first and if the path limiter fails it'll apply to bar instead of
+# dir/foo. There's always an extra 'n' to reject edits to dir/foo in
+# the failure case (and thus get out of the loop).
+
+test_expect_success 'path limiting works: dir' '
+ set_state dir/foo work head &&
+ test_write_lines y n | git checkout -p dir &&
+ verify_saved_state bar &&
+ verify_state dir/foo head head
+'
+
+test_expect_success 'path limiting works: -- dir' '
+ set_state dir/foo work head &&
+ test_write_lines y n | git checkout -p -- dir &&
+ verify_saved_state bar &&
+ verify_state dir/foo head head
+'
+
+test_expect_success 'path limiting works: HEAD^ -- dir' '
+ # the third n is to get out in case it mistakenly does not apply
+ test_write_lines y n n | git checkout -p HEAD^ -- dir &&
+ verify_saved_state bar &&
+ verify_state dir/foo parent parent
+'
+
+test_expect_success 'path limiting works: foo inside dir' '
+ set_state dir/foo work head &&
+ # the third n is to get out in case it mistakenly does not apply
+ test_write_lines y n n | (cd dir && git checkout -p foo) &&
+ verify_saved_state bar &&
+ verify_state dir/foo head head
+'
+
+test_expect_success 'none of this moved HEAD' '
+ verify_saved_head
+'
+
+test_expect_success 'empty tree can be handled' '
+ test_when_finished "git reset --hard" &&
+ git checkout -p $(test_oid empty_tree) --
+'
+
+test_done