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8338f771fe
In abe1998 ("git checkout -b: allow switching out of an unborn
branch"), a code-path overly-optimisticly assumed that a
branch-name was specified. This is not always the case, and as
a result a NULL-pointer was attempted printed to .git/HEAD.
This could lead to at least two different failure modes:
1) vsnprintf formated the NULL-string as something useful (e.g
"(null)")
2) vsnprintf crashed
Neither were very convenient for formatting a new HEAD-reference.
To fix this, reintroduce some strictness so we only take this
new codepath if a banch-name was specified.
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
60 lines
1.4 KiB
Bash
Executable file
60 lines
1.4 KiB
Bash
Executable file
#!/bin/sh
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test_description='checkout from unborn branch'
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. ./test-lib.sh
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test_expect_success 'setup' '
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mkdir parent &&
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(cd parent &&
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git init &&
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echo content >file &&
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git add file &&
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git commit -m base
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) &&
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git fetch parent master:origin
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'
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test_expect_success 'checkout from unborn preserves untracked files' '
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echo precious >expect &&
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echo precious >file &&
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test_must_fail git checkout -b new origin &&
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test_cmp expect file
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'
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test_expect_success 'checkout from unborn preserves index contents' '
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echo precious >expect &&
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echo precious >file &&
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git add file &&
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test_must_fail git checkout -b new origin &&
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test_cmp expect file &&
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git show :file >file &&
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test_cmp expect file
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'
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test_expect_success 'checkout from unborn merges identical index contents' '
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echo content >file &&
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git add file &&
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git checkout -b new origin
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'
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test_expect_success 'checking out another branch from unborn state' '
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git checkout --orphan newroot &&
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git checkout -b anothername &&
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test_must_fail git show-ref --verify refs/heads/newroot &&
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git symbolic-ref HEAD >actual &&
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echo refs/heads/anothername >expect &&
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test_cmp expect actual
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'
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test_expect_success 'checking out in a newly created repo' '
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test_create_repo empty &&
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(
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cd empty &&
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git symbolic-ref HEAD >expect &&
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test_must_fail git checkout &&
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git symbolic-ref HEAD >actual &&
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test_cmp expect actual
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)
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'
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test_done
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