Using 'test_must_be_empty' is shorter and more idiomatic than
  >empty &&
  test_cmp empty out
as it saves the creation of an empty file.  Furthermore, sometimes the
expected empty file doesn't have such a descriptive name like 'empty',
and its creation is far away from the place where it's finally used
for comparison (e.g. in 't7600-merge.sh', where two expected empty
files are created in the 'setup' test, but are used only about 500
lines later).
These cases were found by instrumenting 'test_cmp' to error out the
test script when it's used to compare empty files, and then converted
manually.
Note that even after this patch there still remain a lot of cases
where we use 'test_cmp' to check empty files:
  - Sometimes the expected output is not hard-coded in the test, but
    'test_cmp' is used to ensure that two similar git commands produce
    the same output, and that output happens to be empty, e.g. the
    test 'submodule update --merge  - ignores --merge  for new
    submodules' in 't7406-submodule-update.sh'.
  - Repetitive common tasks, including preparing the expected results
    and running 'test_cmp', are often extracted into a helper
    function, and some of this helper's callsites expect no output.
  - For the same reason as above, the whole 'test_expect_success'
    block is within a helper function, e.g. in 't3070-wildmatch.sh'.
  - Or 'test_cmp' is invoked in a loop, e.g. the test 'cvs update
    (-p)' in 't9400-git-cvsserver-server.sh'.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
		
	
		
			
				
	
	
		
			55 lines
		
	
	
		
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			Executable File
		
	
	
	
	
			
		
		
	
	
			55 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
	
	
	
#!/bin/sh
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test_description='basic ls-files tests
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This test runs git ls-files with various unusual or malformed
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command-line arguments.
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'
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. ./test-lib.sh
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test_expect_success 'ls-files in empty repository' '
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	git ls-files >actual &&
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	test_must_be_empty actual
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'
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test_expect_success 'ls-files with nonexistent path' '
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	git ls-files doesnotexist >actual &&
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	test_must_be_empty actual
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'
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test_expect_success 'ls-files with nonsense option' '
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	test_expect_code 129 git ls-files --nonsense 2>actual &&
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	test_i18ngrep "[Uu]sage: git ls-files" actual
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'
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test_expect_success 'ls-files -h in corrupt repository' '
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	mkdir broken &&
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	(
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		cd broken &&
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		git init &&
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		>.git/index &&
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		test_expect_code 129 git ls-files -h >usage 2>&1
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	) &&
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	test_i18ngrep "[Uu]sage: git ls-files " broken/usage
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'
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test_expect_success SYMLINKS 'ls-files with absolute paths to symlinks' '
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	mkdir subs &&
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	ln -s nosuch link &&
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	ln -s ../nosuch subs/link &&
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	git add link subs/link &&
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	git ls-files -s link subs/link >expect &&
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	git ls-files -s "$(pwd)/link" "$(pwd)/subs/link" >actual &&
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	test_cmp expect actual &&
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	(
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		cd subs &&
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		git ls-files -s link >../expect &&
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		git ls-files -s "$(pwd)/link" >../actual
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	) &&
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	test_cmp expect actual
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'
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test_done
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