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-rwxr-xr-xt/t4030-diff-textconv.sh126
1 files changed, 126 insertions, 0 deletions
diff --git a/t/t4030-diff-textconv.sh b/t/t4030-diff-textconv.sh
new file mode 100755
index 0000000000..a3f0897a52
--- /dev/null
+++ b/t/t4030-diff-textconv.sh
@@ -0,0 +1,126 @@
+#!/bin/sh
+
+test_description='diff.*.textconv tests'
+. ./test-lib.sh
+
+find_diff() {
+ sed '1,/^index /d' | sed '/^-- $/,$d'
+}
+
+cat >expect.binary <<'EOF'
+Binary files a/file and b/file differ
+EOF
+
+cat >expect.text <<'EOF'
+--- a/file
++++ b/file
+@@ -1 +1,2 @@
+ 0
++1
+EOF
+
+cat >hexdump <<'EOF'
+#!/bin/sh
+perl -e '$/ = undef; $_ = <>; s/./ord($&)/ge; print $_' < "$1"
+EOF
+chmod +x hexdump
+
+test_expect_success 'setup binary file with history' '
+ printf "\\0\\n" >file &&
+ git add file &&
+ git commit -m one &&
+ printf "\\01\\n" >>file &&
+ git add file &&
+ git commit -m two
+'
+
+test_expect_success 'file is considered binary by porcelain' '
+ git diff HEAD^ HEAD >diff &&
+ find_diff <diff >actual &&
+ test_cmp expect.binary actual
+'
+
+test_expect_success 'file is considered binary by plumbing' '
+ git diff-tree -p HEAD^ HEAD >diff &&
+ find_diff <diff >actual &&
+ test_cmp expect.binary actual
+'
+
+test_expect_success 'setup textconv filters' '
+ echo file diff=foo >.gitattributes &&
+ git config diff.foo.textconv "$PWD"/hexdump &&
+ git config diff.fail.textconv false
+'
+
+test_expect_success 'diff produces text' '
+ git diff HEAD^ HEAD >diff &&
+ find_diff <diff >actual &&
+ test_cmp expect.text actual
+'
+
+test_expect_success 'diff-tree produces binary' '
+ git diff-tree -p HEAD^ HEAD >diff &&
+ find_diff <diff >actual &&
+ test_cmp expect.binary actual
+'
+
+test_expect_success 'log produces text' '
+ git log -1 -p >log &&
+ find_diff <log >actual &&
+ test_cmp expect.text actual
+'
+
+test_expect_success 'format-patch produces binary' '
+ git format-patch --no-binary --stdout HEAD^ >patch &&
+ find_diff <patch >actual &&
+ test_cmp expect.binary actual
+'
+
+test_expect_success 'status -v produces text' '
+ git reset --soft HEAD^ &&
+ git status -v >diff &&
+ find_diff <diff >actual &&
+ test_cmp expect.text actual &&
+ git reset --soft HEAD@{1}
+'
+
+cat >expect.stat <<'EOF'
+ file | Bin 2 -> 4 bytes
+ 1 files changed, 0 insertions(+), 0 deletions(-)
+EOF
+test_expect_success 'diffstat does not run textconv' '
+ echo file diff=fail >.gitattributes &&
+ git diff --stat HEAD^ HEAD >actual &&
+ test_cmp expect.stat actual
+'
+# restore working setup
+echo file diff=foo >.gitattributes
+
+cat >expect.typechange <<'EOF'
+--- a/file
++++ /dev/null
+@@ -1,2 +0,0 @@
+-0
+-1
+diff --git a/file b/file
+new file mode 120000
+index 0000000..67be421
+--- /dev/null
++++ b/file
+@@ -0,0 +1 @@
++frotz
+\ No newline at end of file
+EOF
+# make a symlink the hard way that works on symlink-challenged file systems
+test_expect_success 'textconv does not act on symlinks' '
+ printf frotz > file &&
+ git add file &&
+ git ls-files -s | sed -e s/100644/120000/ |
+ git update-index --index-info &&
+ git commit -m typechange &&
+ git show >diff &&
+ find_diff <diff >actual &&
+ test_cmp expect.typechange actual
+'
+
+test_done