diff options
Diffstat (limited to 'third_party/git/t/t4042-diff-textconv-caching.sh')
| -rwxr-xr-x | third_party/git/t/t4042-diff-textconv-caching.sh | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/third_party/git/t/t4042-diff-textconv-caching.sh b/third_party/git/t/t4042-diff-textconv-caching.sh new file mode 100755 index 000000000000..bf33aedf4b22 --- /dev/null +++ b/third_party/git/t/t4042-diff-textconv-caching.sh @@ -0,0 +1,121 @@ +#!/bin/sh + +test_description='test textconv caching' +. ./test-lib.sh + +cat >helper <<'EOF' +#!/bin/sh +sed 's/^/converted: /' "$@" >helper.out +cat helper.out +EOF +chmod +x helper + +test_expect_success 'setup' ' + echo foo content 1 >foo.bin && + echo bar content 1 >bar.bin && + git add . && + git commit -m one && + foo1=$(git rev-parse --short HEAD:foo.bin) && + bar1=$(git rev-parse --short HEAD:bar.bin) && + echo foo content 2 >foo.bin && + echo bar content 2 >bar.bin && + git commit -a -m two && + foo2=$(git rev-parse --short HEAD:foo.bin) && + bar2=$(git rev-parse --short HEAD:bar.bin) && + echo "*.bin diff=magic" >.gitattributes && + git config diff.magic.textconv ./helper && + git config diff.magic.cachetextconv true +' + +cat >expect <<EOF +diff --git a/bar.bin b/bar.bin +index $bar1..$bar2 100644 +--- a/bar.bin ++++ b/bar.bin +@@ -1 +1 @@ +-converted: bar content 1 ++converted: bar content 2 +diff --git a/foo.bin b/foo.bin +index $foo1..$foo2 100644 +--- a/foo.bin ++++ b/foo.bin +@@ -1 +1 @@ +-converted: foo content 1 ++converted: foo content 2 +EOF + +test_expect_success 'first textconv works' ' + git diff HEAD^ HEAD >actual && + test_cmp expect actual +' + +test_expect_success 'cached textconv produces same output' ' + git diff HEAD^ HEAD >actual && + test_cmp expect actual +' + +test_expect_success 'cached textconv does not run helper' ' + rm -f helper.out && + git diff HEAD^ HEAD >actual && + test_cmp expect actual && + ! test -r helper.out +' + +cat >expect <<EOF +diff --git a/bar.bin b/bar.bin +index $bar1..$bar2 100644 +--- a/bar.bin ++++ b/bar.bin +@@ -1,2 +1,2 @@ + converted: other +-converted: bar content 1 ++converted: bar content 2 +diff --git a/foo.bin b/foo.bin +index $foo1..$foo2 100644 +--- a/foo.bin ++++ b/foo.bin +@@ -1,2 +1,2 @@ + converted: other +-converted: foo content 1 ++converted: foo content 2 +EOF +test_expect_success 'changing textconv invalidates cache' ' + echo other >other && + git config diff.magic.textconv "./helper other" && + git diff HEAD^ HEAD >actual && + test_cmp expect actual +' + +cat >expect <<EOF +diff --git a/bar.bin b/bar.bin +index $bar1..$bar2 100644 +--- a/bar.bin ++++ b/bar.bin +@@ -1,2 +1,2 @@ + converted: other +-converted: bar content 1 ++converted: bar content 2 +diff --git a/foo.bin b/foo.bin +index $foo1..$foo2 100644 +--- a/foo.bin ++++ b/foo.bin +@@ -1 +1 @@ +-converted: foo content 1 ++converted: foo content 2 +EOF +test_expect_success 'switching diff driver produces correct results' ' + git config diff.moremagic.textconv ./helper && + echo foo.bin diff=moremagic >>.gitattributes && + git diff HEAD^ HEAD >actual && + test_cmp expect actual +' + +# The point here is to test that we can log the notes cache and still use it to +# produce a diff later (older versions of git would segfault on this). It's +# much more likely to come up in the real world with "log --all -p", but using +# --no-walk lets us reliably reproduce the order of traversal. +test_expect_success 'log notes cache and still use cache for -p' ' + git log --no-walk -p refs/notes/textconv/magic HEAD +' + +test_done |