Many scripts compare actual and expected output using "diff -u". This is nicer than "cmp" because the output shows how the two differ. However, not all versions of diff understand -u, leading to unnecessary test failure. This adds a test_cmp function to the test scripts and switches all "diff -u" invocations to use it. The function uses the contents of "$GIT_TEST_CMP" to compare its arguments; the default is "diff -u". On systems with a less-capable diff, you can do: GIT_TEST_CMP=cmp make test Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
		
			
				
	
	
		
			45 lines
		
	
	
		
			665 B
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			45 lines
		
	
	
		
			665 B
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
	
	
	
#!/bin/sh
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test_description='diff hunk header truncation'
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. ./test-lib.sh
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N='日本語'
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N1='日'
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N2='日本'
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NS="$N$N$N$N$N$N$N$N$N$N$N$N$N"
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test_expect_success setup '
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	(
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		echo "A $NS"
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		for c in B C D E F G H I J K
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		do
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			echo "  $c"
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		done
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		echo "L  $NS"
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		for c in M N O P Q R S T U V
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		do
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			echo "  $c"
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		done
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	) >file &&
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	git add file &&
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	sed -e "/^  [EP]/s/$/ modified/" <file >file+ &&
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	mv file+ file
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'
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test_expect_success 'hunk header truncation with an overly long line' '
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	git diff | sed -n -e "s/^.*@@//p" >actual &&
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	(
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		echo " A $N$N$N$N$N$N$N$N$N2"
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		echo " L  $N$N$N$N$N$N$N$N$N1"
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	) >expected &&
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	test_cmp actual expected
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'
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test_done
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