t4008: modernise style

Update this ancient test script to a more modern style in which the expected result is prepared inside the body of the test that uses it. Also, instead of using $tree, a shell variable, throughout the test script, create a tag that points at it, to make it easier to manually debug the test script in its trash directory. Signed-off-by: N Junio C Hamano <gitster@pobox.com>

t4008: modernise style
Update this ancient test script to a more modern style in which the expected result is prepared inside the body of the test that uses it. Also, instead of using $tree, a shell variable, throughout the test script, create a tag that points at it, to make it easier to manually debug the test script in its trash directory. Signed-off-by: N Junio C Hamano <gitster@pobox.com>
db7b9e3a · Junio C Hamano · bd9150b7 · db7b9e3a
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Showing with 126 addition and 160 deletion

t/t4008-diff-break-rewrite.sh t/t4008-diff-break-rewrite.sh +126 -160

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--- a/t/t4008-diff-break-rewrite.sh
+++ b/t/t4008-diff-break-rewrite.sh
@@ -24,165 +24,131 @@ Further, with -B and -M together, these should turn into two renames.
 . ./test-lib.sh
 . "$TEST_DIRECTORY"/diff-lib.sh ;# test-lib chdir's into trash
-test_expect_success \
+test_expect_success setup '
-    setup \
+	cat "$TEST_DIRECTORY"/diff-lib/README >file0 &&
-    'cat "$TEST_DIRECTORY"/diff-lib/README >file0 &&
+	cat "$TEST_DIRECTORY"/diff-lib/COPYING >file1 &&
-     cat "$TEST_DIRECTORY"/diff-lib/COPYING >file1 &&
+	git update-index --add file0 file1 &&
-    git update-index --add file0 file1 &&
+	git tag reference $(git write-tree)
-    tree=$(git write-tree) &&
+'
-    echo "$tree"'
+test_expect_success 'change file1 with copy-edit of file0 and remove file0' '
-test_expect_success \
+	sed -e "s/git/GIT/" file0 >file1 &&
-    'change file1 with copy-edit of file0 and remove file0' \
+	rm -f file0 &&
-    'sed -e "s/git/GIT/" file0 >file1 &&
+	git update-index --remove file0 file1
-     rm -f file0 &&
+'
-    git update-index --remove file0 file1'
+test_expect_success 'run diff with -B (#1)' '
-test_expect_success \
+	git diff-index -B --cached reference >current &&
-    'run diff with -B' \
+	cat >expect <<-\EOF &&
-    'git diff-index -B --cached "$tree" >current'
+	:100644 000000 548142c327a6790ff8821d67c2ee1eff7a656b52 0000000000000000000000000000000000000000 D	file0
+	:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 2fbedd0b5d4b8126e4750c3bee305e8ff79f80ec M100	file1
-cat >expected <<\EOF
+	EOF
-:100644 000000 548142c327a6790ff8821d67c2ee1eff7a656b52 0000000000000000000000000000000000000000 D	file0
+	compare_diff_raw expect current
-:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 2fbedd0b5d4b8126e4750c3bee305e8ff79f80ec M100	file1
+'
-EOF
+test_expect_success 'run diff with -B and -M (#2)' '
-test_expect_success \
+	git diff-index -B -M reference >current &&
-    'validate result of -B (#1)' \
+	cat >expect <<-\EOF &&
-    'compare_diff_raw expected current'
+	:100644 100644 548142c327a6790ff8821d67c2ee1eff7a656b52 2fbedd0b5d4b8126e4750c3bee305e8ff79f80ec R100	file0	file1
+	EOF
-test_expect_success \
+	compare_diff_raw expect current
-    'run diff with -B and -M' \
+'
-    'git diff-index -B -M "$tree" >current'
+test_expect_success 'swap file0 and file1' '
-cat >expected <<\EOF
+	rm -f file0 file1 &&
-:100644 100644 548142c327a6790ff8821d67c2ee1eff7a656b52 2fbedd0b5d4b8126e4750c3bee305e8ff79f80ec R100	file0	file1
+	git read-tree -m reference &&
-EOF
+	git checkout-index -f -u -a &&
+	mv file0 tmp &&
-test_expect_success \
+	mv file1 file0 &&
-    'validate result of -B -M (#2)' \
+	mv tmp file1 &&
-    'compare_diff_raw expected current'
+	git update-index file0 file1
+'
-test_expect_success \
-    'swap file0 and file1' \
+test_expect_success 'run diff with -B (#3)' '
-    'rm -f file0 file1 &&
+	git diff-index -B reference >current &&
-     git read-tree -m $tree &&
+	cat >expect <<-\EOF &&
-     git checkout-index -f -u -a &&
+	:100644 100644 548142c327a6790ff8821d67c2ee1eff7a656b52 6ff87c4664981e4397625791c8ea3bbb5f2279a3 M100	file0
-     mv file0 tmp &&
+	:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 548142c327a6790ff8821d67c2ee1eff7a656b52 M100	file1
-     mv file1 file0 &&
+	EOF
-     mv tmp file1 &&
+	compare_diff_raw expect current
-     git update-index file0 file1'
+'
-test_expect_success \
+test_expect_success 'run diff with -B and -M (#4)' '
-    'run diff with -B' \
+	git diff-index -B -M reference >current &&
-    'git diff-index -B "$tree" >current'
+	cat >expect <<-\EOF &&
+	:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 6ff87c4664981e4397625791c8ea3bbb5f2279a3 R100	file1	file0
-cat >expected <<\EOF
+	:100644 100644 548142c327a6790ff8821d67c2ee1eff7a656b52 548142c327a6790ff8821d67c2ee1eff7a656b52 R100	file0	file1
-:100644 100644 548142c327a6790ff8821d67c2ee1eff7a656b52 6ff87c4664981e4397625791c8ea3bbb5f2279a3 M100	file0
+	EOF
-:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 548142c327a6790ff8821d67c2ee1eff7a656b52 M100	file1
+	compare_diff_raw expect current
-EOF
+'
-test_expect_success \
+test_expect_success 'make file0 into something completely different' '
-    'validate result of -B (#3)' \
+	rm -f file0 &&
-    'compare_diff_raw expected current'
+	test_ln_s_add frotz file0 &&
+	git update-index file1
-test_expect_success \
+'
-    'run diff with -B and -M' \
-    'git diff-index -B -M "$tree" >current'
+test_expect_success 'run diff with -B (#5)' '
+	git diff-index -B reference >current &&
-cat >expected <<\EOF
+	cat >expect <<-\EOF &&
-:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 6ff87c4664981e4397625791c8ea3bbb5f2279a3 R100	file1	file0
+	:100644 120000 548142c327a6790ff8821d67c2ee1eff7a656b52 67be421f88824578857624f7b3dc75e99a8a1481 T	file0
-:100644 100644 548142c327a6790ff8821d67c2ee1eff7a656b52 548142c327a6790ff8821d67c2ee1eff7a656b52 R100	file0	file1
+	:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 548142c327a6790ff8821d67c2ee1eff7a656b52 M100	file1
-EOF
+	EOF
+	compare_diff_raw expect current
-test_expect_success \
+'
-    'validate result of -B -M (#4)' \
-    'compare_diff_raw expected current'
+test_expect_success 'run diff with -B -M (#6)' '
+	git diff-index -B -M reference >current &&
-test_expect_success \
-    'make file0 into something completely different' \
+	# file0 changed from regular to symlink.  file1 is the same as the preimage
-    'rm -f file0 &&
+	# of file0.  Because the change does not make file0 disappear, file1 is
-     test_ln_s_add frotz file0 &&
+	# denoted as a copy of file0
-     git update-index file1'
+	cat >expect <<-\EOF &&
+	:100644 120000 548142c327a6790ff8821d67c2ee1eff7a656b52 67be421f88824578857624f7b3dc75e99a8a1481 T	file0
-test_expect_success \
+	:100644 100644 548142c327a6790ff8821d67c2ee1eff7a656b52 548142c327a6790ff8821d67c2ee1eff7a656b52 C	file0	file1
-    'run diff with -B' \
+	EOF
-    'git diff-index -B "$tree" >current'
+	compare_diff_raw expect current
+'
-cat >expected <<\EOF
-:100644 120000 548142c327a6790ff8821d67c2ee1eff7a656b52 67be421f88824578857624f7b3dc75e99a8a1481 T	file0
+test_expect_success 'run diff with -M (#7)' '
-:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 548142c327a6790ff8821d67c2ee1eff7a656b52 M100	file1
+	git diff-index -M reference >current &&
-EOF
+	# This should not mistake file0 as the copy source of new file1
-test_expect_success \
+	# due to type differences.
-    'validate result of -B (#5)' \
+	cat >expect <<-\EOF &&
-    'compare_diff_raw expected current'
+	:100644 120000 548142c327a6790ff8821d67c2ee1eff7a656b52 67be421f88824578857624f7b3dc75e99a8a1481 T	file0
+	:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 548142c327a6790ff8821d67c2ee1eff7a656b52 M	file1
-test_expect_success \
+	EOF
-    'run diff with -B -M' \
+	compare_diff_raw expect current
-    'git diff-index -B -M "$tree" >current'
+'
-# file0 changed from regular to symlink.  file1 is very close to the preimage of file0.
+test_expect_success 'file1 edited to look like file0 and file0 rename-edited to file2' '
-# the change does not make file0 disappear, so file1 is denoted as a copy of file0
+	rm -f file0 file1 &&
-cat >expected <<\EOF
+	git read-tree -m reference &&
-:100644 120000 548142c327a6790ff8821d67c2ee1eff7a656b52 67be421f88824578857624f7b3dc75e99a8a1481 T	file0
+	git checkout-index -f -u -a &&
-:100644 100644 548142c327a6790ff8821d67c2ee1eff7a656b52 548142c327a6790ff8821d67c2ee1eff7a656b52 C	file0	file1
+	sed -e "s/git/GIT/" file0 >file1 &&
-EOF
+	sed -e "s/git/GET/" file0 >file2 &&
+	rm -f file0 &&
-test_expect_success \
+	git update-index --add --remove file0 file1 file2
-    'validate result of -B -M (#6)' \
+'
-    'compare_diff_raw expected current'
+test_expect_success 'run diff with -B (#8)' '
-test_expect_success \
+	git diff-index -B reference >current &&
-    'run diff with -M' \
+	cat >expect <<-\EOF &&
-    'git diff-index -M "$tree" >current'
+	:100644 000000 548142c327a6790ff8821d67c2ee1eff7a656b52 0000000000000000000000000000000000000000 D	file0
+	:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 2fbedd0b5d4b8126e4750c3bee305e8ff79f80ec M100	file1
-# This should not mistake file0 as the copy source of new file1
+	:000000 100644 0000000000000000000000000000000000000000 69a939f651686f56322566e2fd76715947a24162 A	file2
-# due to type differences.
+	EOF
-cat >expected <<\EOF
+	compare_diff_raw expect current
-:100644 120000 548142c327a6790ff8821d67c2ee1eff7a656b52 67be421f88824578857624f7b3dc75e99a8a1481 T	file0
+'
-:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 548142c327a6790ff8821d67c2ee1eff7a656b52 M	file1
-EOF
+test_expect_success 'run diff with -B -C (#9)' '
+	git diff-index -B -C reference >current &&
-test_expect_success \
+	cat >expect <<-\EOF &&
-    'validate result of -M (#7)' \
+	:100644 100644 548142c327a6790ff8821d67c2ee1eff7a656b52 2fbedd0b5d4b8126e4750c3bee305e8ff79f80ec C095	file0	file1
-    'compare_diff_raw expected current'
+	:100644 100644 548142c327a6790ff8821d67c2ee1eff7a656b52 69a939f651686f56322566e2fd76715947a24162 R095	file0	file2
+	EOF
-test_expect_success \
+	compare_diff_raw expect current
-    'file1 edited to look like file0 and file0 rename-edited to file2' \
+'
-    'rm -f file0 file1 &&
-     git read-tree -m $tree &&
-     git checkout-index -f -u -a &&
-     sed -e "s/git/GIT/" file0 >file1 &&
-     sed -e "s/git/GET/" file0 >file2 &&
-     rm -f file0 &&
-     git update-index --add --remove file0 file1 file2'
-test_expect_success \
-    'run diff with -B' \
-    'git diff-index -B "$tree" >current'
-cat >expected <<\EOF
-:100644 000000 548142c327a6790ff8821d67c2ee1eff7a656b52 0000000000000000000000000000000000000000 D	file0
-:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 2fbedd0b5d4b8126e4750c3bee305e8ff79f80ec M100	file1
-:000000 100644 0000000000000000000000000000000000000000 69a939f651686f56322566e2fd76715947a24162 A	file2
-EOF
-test_expect_success \
-    'validate result of -B (#8)' \
-    'compare_diff_raw expected current'
-test_expect_success \
-    'run diff with -B -C' \
-    'git diff-index -B -C "$tree" >current'
-cat >expected <<\EOF
-:100644 100644 548142c327a6790ff8821d67c2ee1eff7a656b52 2fbedd0b5d4b8126e4750c3bee305e8ff79f80ec C095	file0	file1
-:100644 100644 548142c327a6790ff8821d67c2ee1eff7a656b52 69a939f651686f56322566e2fd76715947a24162 R095	file0	file2
-EOF
-test_expect_success \
-    'validate result of -B -M (#9)' \
-    'compare_diff_raw expected current'
 test_done