test-lib: introduce test_line_count to measure files

diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
index 9f03ce699e8f4c3c654065deae675d1a7b259c74..c0e69f61b3f03e40ade613da8e9ca4256206653a 100755 (executable)
--- a/t/t3404-rebase-interactive.sh
+++ b/t/t3404-rebase-interactive.sh
@@ -46,7 +46,7 @@ test_expect_success 'setup' '
        test_commit G file1 &&
        test_commit H file5 &&
        git checkout -b branch2 F &&
-       test_commit I file6
+       test_commit I file6 &&
        git checkout -b conflict-branch A &&
        for n in one two three four
        do
@@ -64,6 +64,67 @@ test_expect_success 'setup' '
        done
 '
 
+# "exec" commands are ran with the user shell by default, but this may
+# be non-POSIX. For example, if SHELL=zsh then ">file" doesn't work
+# to create a file. Unseting SHELL avoids such non-portable behavior
+# in tests.
+SHELL=
+
+test_expect_success 'rebase -i with the exec command' '
+       git checkout master &&
+       (
+       FAKE_LINES="1 exec_>touch-one
+               2 exec_>touch-two exec_false exec_>touch-three
+               3 4 exec_>\"touch-file__name_with_spaces\";_>touch-after-semicolon 5" &&
+       export FAKE_LINES &&
+       test_must_fail git rebase -i A
+       ) &&
+       test_path_is_file touch-one &&
+       test_path_is_file touch-two &&
+       test_path_is_missing touch-three " (should have stopped before)" &&
+       test $(git rev-parse C) = $(git rev-parse HEAD) || {
+               echo "Stopped at wrong revision:"
+               echo "($(git describe --tags HEAD) instead of C)"
+               false
+       } &&
+       git rebase --continue &&
+       test_path_is_file touch-three &&
+       test_path_is_file "touch-file  name with spaces" &&
+       test_path_is_file touch-after-semicolon &&
+       test $(git rev-parse master) = $(git rev-parse HEAD) || {
+               echo "Stopped at wrong revision:"
+               echo "($(git describe --tags HEAD) instead of master)"
+               false
+       } &&
+       rm -f touch-*
+'
+
+test_expect_success 'rebase -i with the exec command runs from tree root' '
+       git checkout master &&
+       mkdir subdir && (cd subdir &&
+       FAKE_LINES="1 exec_>touch-subdir" \
+               git rebase -i HEAD^
+       ) &&
+       test_path_is_file touch-subdir &&
+       rm -fr subdir
+'
+
+test_expect_success 'rebase -i with the exec command checks tree cleanness' '
+       git checkout master &&
+       (
+       FAKE_LINES="exec_echo_foo_>file1 1" &&
+       export FAKE_LINES &&
+       test_must_fail git rebase -i HEAD^
+       ) &&
+       test $(git rev-parse master^) = $(git rev-parse HEAD) || {
+               echo "Stopped at wrong revision:"
+               echo "($(git describe --tags HEAD) instead of master^)"
+               false
+       } &&
+       git reset --hard &&
+       git rebase --continue
+'
+
 test_expect_success 'no changes are a nop' '
        git checkout branch2 &&
        git rebase -i F &&
@@ -143,16 +204,17 @@ test_expect_success 'abort' '
        git rebase --abort &&
        test $(git rev-parse new-branch1) = $(git rev-parse HEAD) &&
        test "$(git symbolic-ref -q HEAD)" = "refs/heads/branch1" &&
-       ! test -d .git/rebase-merge
+       test_path_is_missing .git/rebase-merge
 '
 
 test_expect_success 'abort with error when new base cannot be checked out' '
        git rm --cached file1 &&
        git commit -m "remove file in base" &&
        test_must_fail git rebase -i master > output 2>&1 &&
-       grep "Untracked working tree file .file1. would be overwritten" \
+       grep "The following untracked working tree files would be overwritten by checkout:" \
                output &&
-       ! test -d .git/rebase-merge &&
+       grep "file1" output &&
+       test_path_is_missing .git/rebase-merge &&
        git reset --hard HEAD^
 '
 
@@ -522,7 +584,7 @@ test_expect_success 'do "noop" when there is nothing to cherry-pick' '
 
        git checkout -b branch4 HEAD &&
        GIT_EDITOR=: git commit --amend \
-               --author="Somebody else <somebody@else.com>" 
+               --author="Somebody else <somebody@else.com>" &&
        test $(git rev-parse branch3) != $(git rev-parse branch4) &&
        git rebase -i branch3 &&
        test $(git rev-parse branch3) = $(git rev-parse branch4)
@@ -537,7 +599,7 @@ test_expect_success 'submodule rebase setup' '
                git add elif && git commit -m "submodule initial"
        ) &&
        echo 1 >file1 &&
-       git add file1 sub
+       git add file1 sub &&
        test_tick &&
        git commit -m "One" &&
        echo 2 >file1 &&