98 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
			
		
		
	
	
			98 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
#!/bin/sh
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test_description='rewrite diff'
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. ./test-lib.sh
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test_expect_success setup '
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	cat "$TEST_DIRECTORY"/../COPYING >test &&
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	git add test &&
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	tr \
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	  "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" \
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	  "nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM" \
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	  <"$TEST_DIRECTORY"/../COPYING >test &&
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	echo "to be deleted" >test2 &&
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	git add test2
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'
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test_expect_success 'detect rewrite' '
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	actual=$(git diff-files -B --summary test) &&
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	verbose expr "$actual" : " rewrite test ([0-9]*%)$"
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'
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cat >expect <<EOF
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diff --git a/test2 b/test2
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deleted file mode 100644
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index 4202011..0000000
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--- a/test2
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+++ /dev/null
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@@ -1 +0,0 @@
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-to be deleted
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EOF
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test_expect_success 'show deletion diff without -D' '
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	rm test2 &&
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	git diff -- test2 >actual &&
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	test_cmp expect actual
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'
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cat >expect <<EOF
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diff --git a/test2 b/test2
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deleted file mode 100644
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index 4202011..0000000
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EOF
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test_expect_success 'suppress deletion diff with -D' '
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	git diff -D -- test2 >actual &&
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	test_cmp expect actual
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'
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test_expect_success 'show deletion diff with -B' '
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	git diff -B -- test >actual &&
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	grep "Linus Torvalds" actual
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'
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test_expect_success 'suppress deletion diff with -B -D' '
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	git diff -B -D -- test >actual &&
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	grep -v "Linus Torvalds" actual
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'
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test_expect_success 'prepare a file that ends with an incomplete line' '
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	test_seq 1 99 >seq &&
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	printf 100 >>seq &&
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	git add seq &&
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	git commit seq -m seq
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'
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test_expect_success 'rewrite the middle 90% of sequence file and terminate with newline' '
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	test_seq 1 5 >seq &&
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	test_seq 9331 9420 >>seq &&
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	test_seq 96 100 >>seq
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'
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test_expect_success 'confirm that sequence file is considered a rewrite' '
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	git diff -B seq >res &&
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	grep "dissimilarity index" res
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'
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test_expect_success 'no newline at eof is on its own line without -B' '
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	git diff seq >res &&
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	grep "^\\\\ " res &&
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	! grep "^..*\\\\ " res
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'
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test_expect_success 'no newline at eof is on its own line with -B' '
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	git diff -B seq >res &&
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	grep "^\\\\ " res &&
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	! grep "^..*\\\\ " res
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'
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test_done
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