[PATCH] t0020-crlf: test rebase with text conversion and safecrlf

[Yann Droneaud <ydroneaud@opteya.com>]

This patch add two tests to reproduce the problems described
in thread "git rebase fail with CRLF conversion"
 <fb20a7d711fdd218f58f1f2090b1c515@meuh.org>
 <http://thread.gmane.org/gmane.comp.version-control.git/228613>
 <http://marc.info/?l=git&m=137182211414404&w=2>

- Add and commit a file with CRLF,
- Add and commit a .gitattributes with text flag for the file,
- Convert CRLF to LF in file, commit the change,
- Rebase the whole on top of another parent
  The rebase currently failed.

This scenario is repeated twice, first with core.safecrlf set to warn,
a second time with core.safecrlf set to true.

git diff will also fail when core.safecrlf is set to true
and the file is not already converted to LF.

Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
---
 t/t0020-crlf.sh | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/t/t0020-crlf.sh b/t/t0020-crlf.sh
index 1a8f44c..12147ba 100755
--- a/t/t0020-crlf.sh
+++ b/t/t0020-crlf.sh
@@ -506,4 +506,56 @@ test_expect_success 'New CRLF file gets LF in repo' '
 	test_cmp alllf alllf2
 '
 
+test_expect_success 'Prepare rebase test' '
+	test_config core.autocrlf false &&
+	test_config core.safecrlf warn &&
+	test_config core.eol native &&
+	git branch rebase-initial &&
+	git checkout -b rebase-other rebase-initial &&
+	git commit --allow-empty -m "Another commit" &&
+	git checkout rebase-initial
+'
+
+# git rebase will failed to apply the "normalization" commit
+test_expect_success 'Rebase with core.safecrlf set to warn (default)' '
+	test_config core.autocrlf false &&
+	test_config core.safecrlf warn &&
+	test_config core.eol native &&
+	git checkout -b rebase-warn rebase-initial &&
+	for w in A couple of lines ; do echo $w ; done | append_cr >rebase-warn.txt &&
+	git add rebase-warn.txt && git commit -m "Added raw text" &&
+	echo rebase-warn.txt text >> .gitattributes &&
+	git add .gitattributes && git commit -m "Added .gitattributes" &&
+	git rm --cached rebase-warn.txt && git reset --hard &&
+	git add rebase-warn.txt && git commit -m "Normalized" &&
+	git rebase rebase-other || {
+		git status && git diff &&
+		git add rebase-warn.txt && git rebase --continue ;
+	}
+'
+
+#
+# git rebase will failed to apply the "normalization" commit
+# additionnaly
+# git diff and git add will failed when core.safecrlf is set to true
+#
+test_expect_success 'Rebase with core.safecrlf set to true' '
+	test_config core.autocrlf false &&
+	test_config core.safecrlf true &&
+	test_config core.eol native &&
+	git checkout -b rebase-true rebase-initial &&
+	for w in Another couple of lines ; do echo $w ; done | append_cr >rebase-true.txt &&
+	git add rebase-true.txt && git commit -m "Added raw text" &&
+	echo rebase-true.txt text >> .gitattributes &&
+	git add .gitattributes && git commit -m "Added .gitattributes" &&
+	git diff || git add rebase-true.txt ||
+	for w in Another couple of lines ; do echo $w ; done >rebase-true.txt &&
+	git add rebase-true.txt && git commit -m "Normalized" &&
+	git rebase rebase-other || {
+		git status && git diff || git add rebase-true.txt ||
+		for w in Another couple of lines ; do echo $w ; done >rebase-true.txt &&
+		git add rebase-true.txt && git rebase --continue ;
+	}
+'
+
 test_done
-- 
1.8.2.1