t/t8006: test textconv support for blame

Test the correct functionning of textconv with blame <file> and blame HEAD^ <file>.
Test the case when no driver is specified.

Signed-off-by: Axel Bonnet <axel.bonnet@ensimag.imag.fr>
Signed-off-by: Clément Poulain <clement.poulain@ensimag.imag.fr>
Signed-off-by: Diane Gasselin <diane.gasselin@ensimag.imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/t8006-blame-textconv.sh

@@ -0,0 +1,80 @@
+#!/bin/sh
+
+test_description='git blame textconv support'
+. ./test-lib.sh
+
+find_blame() {
+	sed -e 's/^[^(]*//'
+}
+
+cat >helper <<'EOF'
+#!/bin/sh
+sed 's/^/converted: /' "$@"
+EOF
+chmod +x helper
+
+test_expect_success 'setup ' '
+	echo test 1 >one.bin &&
+	echo test number 2 >two.bin &&
+	git add . &&
+	GIT_AUTHOR_NAME=Number1 git commit -a -m First --date="2010-01-01 18:00:00" &&
+	echo test 1 version 2 >one.bin &&
+	echo test number 2 version 2 >>two.bin &&
+	GIT_AUTHOR_NAME=Number2 git commit -a -m Second --date="2010-01-01 20:00:00"
+'
+
+cat >expected <<EOF
+(Number2 2010-01-01 20:00:00 +0000 1) test 1 version 2
+EOF
+
+test_expect_success 'no filter specified' '
+	git blame one.bin >blame &&
+	find_blame Number2 <blame >result &&
+	test_cmp expected result
+'
+
+test_expect_success 'setup textconv filters' '
+	echo "*.bin diff=test" >.gitattributes &&
+	git config diff.test.textconv ./helper &&
+	git config diff.test.cachetextconv false
+'
+
+test_expect_success 'blame with --no-textconv' '
+	git blame --no-textconv one.bin >blame &&
+	find_blame <blame> result &&
+	test_cmp expected result
+'
+
+cat >expected <<EOF
+(Number2 2010-01-01 20:00:00 +0000 1) converted: test 1 version 2
+EOF
+
+test_expect_success 'basic blame on last commit' '
+	git blame one.bin >blame &&
+	find_blame  <blame >result &&
+	test_cmp expected result
+'
+
+cat >expected <<EOF
+(Number1 2010-01-01 18:00:00 +0000 1) converted: test number 2
+(Number2 2010-01-01 20:00:00 +0000 2) converted: test number 2 version 2
+EOF
+
+test_expect_success 'blame --textconv going through revisions' '
+	git blame --textconv two.bin >blame &&
+	find_blame <blame >result &&
+	test_cmp expected result
+'
+
+test_expect_success 'make a new commit' '
+	echo "test number 2 version 3" >>two.bin &&
+	GIT_AUTHOR_NAME=Number3 git commit -a -m Third --date="2010-01-01 22:00:00"
+'
+
+test_expect_success 'blame from previous revision' '
+	git blame HEAD^ two.bin >blame &&
+	find_blame <blame >result &&
+	test_cmp expected result
+'
+
+test_done