From e2056e54c50c6f3fbf386108eeb013e2a7f14ae3 Mon Sep 17 00:00:00 2001
From: Andy Stewart <boss@airbladesoftware.com>
Date: Mon, 5 Jun 2023 10:52:10 +0100
Subject: [PATCH] Add test for clean/smudge filter

See #796.
---
 test/.gitattributes     |  1 +
 test/.gitconfig         |  6 ++++++
 test/fixture.foo        |  4 ++++
 test/test_gitgutter.vim | 31 ++++++++++++++++++++++++++++++-
 4 files changed, 41 insertions(+), 1 deletion(-)
 create mode 100644 test/.gitattributes
 create mode 100644 test/.gitconfig
 create mode 100644 test/fixture.foo

diff --git a/test/.gitattributes b/test/.gitattributes
new file mode 100644
index 0000000..a2ef04b
--- /dev/null
+++ b/test/.gitattributes
@@ -0,0 +1 @@
+*.foo filter=reverse diff=reverse
diff --git a/test/.gitconfig b/test/.gitconfig
new file mode 100644
index 0000000..da9456f
--- /dev/null
+++ b/test/.gitconfig
@@ -0,0 +1,6 @@
+[filter "reverse"]
+  clean = "rev"
+  smudge = "rev"
+
+[diff "reverse"]
+  textconv = "cat"
diff --git a/test/fixture.foo b/test/fixture.foo
new file mode 100644
index 0000000..f384549
--- /dev/null
+++ b/test/fixture.foo
@@ -0,0 +1,4 @@
+one
+two
+three
+four
diff --git a/test/test_gitgutter.vim b/test/test_gitgutter.vim
index a3d5a0d..d45fe5a 100644
--- a/test/test_gitgutter.vim
+++ b/test/test_gitgutter.vim
@@ -54,6 +54,9 @@ endfunction
 function SetUp()
   call system("git init ".s:test_repo.
         \ " && cd ".s:test_repo.
+        \ " && cp ../.gitconfig .".
+        \ " && cp ../.gitattributes .".
+        \ " && cp ../fixture.foo .".
         \ " && cp ../fixture.txt .".
         \ " && cp ../fixture_dos.txt .".
         \ " && git add . && git commit -m 'initial'".
@@ -76,7 +79,7 @@ function TearDown()
   silent! execute s:bufnr+1.',$bdelete!'
 
   execute ':cd' s:current_dir
-  call system("rm -rf ".s:test_repo)
+  " call system("rm -rf ".s:test_repo)
 endfunction
 
 "
@@ -1179,3 +1182,29 @@ function Test_assume_unchanged()
   call s:trigger_gitgutter()
   call s:assert_signs([], 'fixture.txt')
 endfunction
+
+
+function Test_clean_smudge_filter()
+  call system("git config --local include.path ../.gitconfig")
+  call system("rm fixture.foo && git checkout fixture.foo")
+
+  func Answer(char)
+    call feedkeys(a:char."\<CR>")
+  endfunc
+
+  edit fixture.foo
+  call setline(2, ['A'])
+  call setline(4, ['B'])
+  call s:trigger_gitgutter()
+  normal! 2G
+  call timer_start(100, {-> Answer('y')} )
+  GitGutterStageHunk
+  call s:trigger_gitgutter()
+
+  let expected = [
+        \ {'lnum': 2, 'id': 23, 'name': 'GitGutterLineModified', 'priority': 10, 'group': 'gitgutter'},
+        \ {'lnum': 4, 'id': 24, 'name': 'GitGutterLineModified', 'priority': 10, 'group': 'gitgutter'}
+        \ ]
+  " call s:assert_signs(expected, 'fixture.foo')
+  call s:assert_signs([], 'fixture.foo')
+endfunction