#!/bin/sh

global test_description := ''checkout must not overwrite an untracked objects''
source ./test-lib.sh

test_expect_success 'setup' '

	mkdir -p a/b/c &&
	>a/b/c/d &&
	git add -A &&
	git commit -m base &&
	git tag start
'

test_expect_success 'create a commit where dir a/b changed to file' '

	git checkout -b file &&
	rm -rf a/b &&
	>a/b &&
	git add -A &&
	git commit -m "dir to file"
'

test_expect_success 'checkout commit with dir must not remove untracked a/b' '

	git rm --cached a/b &&
	git commit -m "un-track the file" &&
	test_must_fail git checkout start &&
	test -f a/b
'

test_expect_success 'create a commit where dir a/b changed to symlink' '

	rm -rf a/b &&	# cleanup if previous test failed
	git checkout -f -b symlink start &&
	rm -rf a/b &&
	git add -A &&
	test_ln_s_add foo a/b &&
	git commit -m "dir to symlink"
'

test_expect_success 'checkout commit with dir must not remove untracked a/b' '

	git rm --cached a/b &&
	git commit -m "un-track the symlink" &&
	test_must_fail git checkout start
'

test_expect_success SYMLINKS 'the symlink remained' '

	test -h a/b
'

test_done
(CommandList
  children: [
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:test_description)
          op: Equal
          rhs: {(SQ <"checkout must not overwrite an untracked objects">)}
          spids: [4]
        )
      ]
      spids: [4]
    )
    (C {(.)} {(./test-lib.sh)})
    (C {(test_expect_success)} {(SQ <setup>)} 
      {
        (SQ <"\n"> <"\n"> <"\tmkdir -p a/b/c &&\n"> <"\t>a/b/c/d &&\n"> <"\tgit add -A &&\n"> 
          <"\tgit commit -m base &&\n"> <"\tgit tag start\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"create a commit where dir a/b changed to file">)} 
      {
        (SQ <"\n"> <"\n"> <"\tgit checkout -b file &&\n"> <"\trm -rf a/b &&\n"> <"\t>a/b &&\n"> 
          <"\tgit add -A &&\n"> <"\tgit commit -m \"dir to file\"\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"checkout commit with dir must not remove untracked a/b">)} 
      {
        (SQ <"\n"> <"\n"> <"\tgit rm --cached a/b &&\n"> <"\tgit commit -m \"un-track the file\" &&\n"> 
          <"\ttest_must_fail git checkout start &&\n"> <"\ttest -f a/b\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"create a commit where dir a/b changed to symlink">)} 
      {
        (SQ <"\n"> <"\n"> <"\trm -rf a/b &&\t# cleanup if previous test failed\n"> 
          <"\tgit checkout -f -b symlink start &&\n"> <"\trm -rf a/b &&\n"> <"\tgit add -A &&\n"> <"\ttest_ln_s_add foo a/b &&\n"> 
          <"\tgit commit -m \"dir to symlink\"\n">
        )
      }
    )
    (C {(test_expect_success)} {(SQ <"checkout commit with dir must not remove untracked a/b">)} 
      {
        (SQ <"\n"> <"\n"> <"\tgit rm --cached a/b &&\n"> 
          <"\tgit commit -m \"un-track the symlink\" &&\n"> <"\ttest_must_fail git checkout start\n">
        )
      }
    )
    (C {(test_expect_success)} {(SYMLINKS)} {(SQ <"the symlink remained">)} 
      {(SQ <"\n"> <"\n"> <"\ttest -h a/b\n">)}
    )
    (C {(test_done)})
  ]
)