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-rwxr-xr-xt/t4053-diff-no-index.sh154
1 files changed, 153 insertions, 1 deletions
diff --git a/t/t4053-diff-no-index.sh b/t/t4053-diff-no-index.sh
index 0168946..651ec77 100755
--- a/t/t4053-diff-no-index.sh
+++ b/t/t4053-diff-no-index.sh
@@ -2,6 +2,7 @@
test_description='diff --no-index'
+TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
test_expect_success 'setup' '
@@ -16,6 +17,11 @@ test_expect_success 'setup' '
echo 1 >non/git/b
'
+test_expect_success 'git diff --no-index --exit-code' '
+ git diff --no-index --exit-code a/1 non/git/a &&
+ test_expect_code 1 git diff --no-index --exit-code a/1 a/2
+'
+
test_expect_success 'git diff --no-index directories' '
test_expect_code 1 git diff --no-index a b >cnt &&
test_line_count = 14 cnt
@@ -50,7 +56,7 @@ test_expect_success 'git diff --no-index executed outside repo gives correct err
export GIT_CEILING_DIRECTORIES &&
cd non/git &&
test_must_fail git diff --no-index a 2>actual.err &&
- test_i18ngrep "usage: git diff --no-index" actual.err
+ test_grep "usage: git diff --no-index" actual.err
)
'
@@ -144,4 +150,150 @@ test_expect_success 'diff --no-index allows external diff' '
test_cmp expect actual
'
+test_expect_success 'diff --no-index normalizes mode: no changes' '
+ echo foo >x &&
+ cp x y &&
+ git diff --no-index x y >out &&
+ test_must_be_empty out
+'
+
+test_expect_success POSIXPERM 'diff --no-index normalizes mode: chmod +x' '
+ chmod +x y &&
+ cat >expected <<-\EOF &&
+ diff --git a/x b/y
+ old mode 100644
+ new mode 100755
+ EOF
+ test_expect_code 1 git diff --no-index x y >actual &&
+ test_cmp expected actual
+'
+
+test_expect_success POSIXPERM 'diff --no-index normalizes: mode not like git mode' '
+ chmod 666 x &&
+ chmod 777 y &&
+ cat >expected <<-\EOF &&
+ diff --git a/x b/y
+ old mode 100644
+ new mode 100755
+ EOF
+ test_expect_code 1 git diff --no-index x y >actual &&
+ test_cmp expected actual
+'
+
+test_expect_success POSIXPERM,SYMLINKS 'diff --no-index normalizes: mode not like git mode (symlink)' '
+ ln -s y z &&
+ X_OID=$(git hash-object --stdin <x) &&
+ Z_OID=$(printf y | git hash-object --stdin) &&
+ cat >expected <<-EOF &&
+ diff --git a/x b/x
+ deleted file mode 100644
+ index $X_OID..$ZERO_OID
+ --- a/x
+ +++ /dev/null
+ @@ -1 +0,0 @@
+ -foo
+ diff --git a/z b/z
+ new file mode 120000
+ index $ZERO_OID..$Z_OID
+ --- /dev/null
+ +++ b/z
+ @@ -0,0 +1 @@
+ +y
+ \ No newline at end of file
+ EOF
+ test_expect_code 1 git -c core.abbrev=no diff --no-index x z >actual &&
+ test_cmp expected actual
+'
+
+test_expect_success POSIXPERM 'external diff with mode-only change' '
+ echo content >not-executable &&
+ echo content >executable &&
+ chmod +x executable &&
+ echo executable executable $(test_oid zero) 100755 \
+ not-executable $(test_oid zero) 100644 not-executable \
+ >expect &&
+ test_expect_code 1 git -c diff.external=echo diff \
+ --no-index executable not-executable >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success "diff --no-index treats '-' as stdin" '
+ cat >expect <<-EOF &&
+ diff --git a/- b/a/1
+ index $ZERO_OID..$(git hash-object --stdin <a/1) 100644
+ --- a/-
+ +++ b/a/1
+ @@ -1 +1 @@
+ -x
+ +1
+ EOF
+
+ test_write_lines x | test_expect_code 1 \
+ git -c core.abbrev=no diff --no-index -- - a/1 >actual &&
+ test_cmp expect actual &&
+
+ test_write_lines 1 | git diff --no-index -- a/1 - >actual &&
+ test_must_be_empty actual
+'
+
+test_expect_success "diff --no-index -R treats '-' as stdin" '
+ cat >expect <<-EOF &&
+ diff --git b/a/1 a/-
+ index $(git hash-object --stdin <a/1)..$ZERO_OID 100644
+ --- b/a/1
+ +++ a/-
+ @@ -1 +1 @@
+ -1
+ +x
+ EOF
+
+ test_write_lines x | test_expect_code 1 \
+ git -c core.abbrev=no diff --no-index -R -- - a/1 >actual &&
+ test_cmp expect actual &&
+
+ test_write_lines 1 | git diff --no-index -R -- a/1 - >actual &&
+ test_must_be_empty actual
+'
+
+test_expect_success 'diff --no-index refuses to diff stdin and a directory' '
+ test_must_fail git diff --no-index -- - a </dev/null 2>err &&
+ grep "fatal: cannot compare stdin to a directory" err
+'
+
+test_expect_success PIPE 'diff --no-index refuses to diff a named pipe and a directory' '
+ test_when_finished "rm -f pipe" &&
+ mkfifo pipe &&
+ test_must_fail git diff --no-index -- pipe a 2>err &&
+ grep "fatal: cannot compare a named pipe to a directory" err
+'
+
+test_expect_success PIPE,SYMLINKS 'diff --no-index reads from pipes' '
+ test_when_finished "rm -f old new new-link" &&
+ mkfifo old &&
+ mkfifo new &&
+ ln -s new new-link &&
+ {
+ (test_write_lines a b c >old) &
+ } &&
+ test_when_finished "kill $! || :" &&
+ {
+ (test_write_lines a x c >new) &
+ } &&
+ test_when_finished "kill $! || :" &&
+
+ cat >expect <<-EOF &&
+ diff --git a/old b/new-link
+ --- a/old
+ +++ b/new-link
+ @@ -1,3 +1,3 @@
+ a
+ -b
+ +x
+ c
+ EOF
+
+ test_expect_code 1 git diff --no-index old new-link >actual &&
+ test_cmp expect actual
+'
+
test_done