t5515: make test hash independent

This test contains a large number of data files, mostly using the same
object ID values for refs. Instead of producing two separate sets of
test files, keep the test files using SHA-1 and translate them on the
fly by replacing the SHA-1 values with the values for the current hash
algorithm in use.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/t5515-fetch-merge-logic.sh

@@ -12,11 +12,55 @@ GIT_TEST_PROTOCOL_VERSION=
 
 . ./test-lib.sh
 
+build_script () {
+	script="$1" &&
+	for i in one three_file master master2 one_tree three two two2 three2
+	do
+		echo "s/$(test_oid --hash=sha1 "$i")/$(test_oid "$i")/g" >>"$script"
+	done
+}
+
+convert_expected () {
+	file="$1" &&
+	script="$2" &&
+	sed -f "$script" "$file" >"$file.tmp" &&
+	mv "$file.tmp" "$file"
+}
+
 test_expect_success setup '
 	GIT_AUTHOR_DATE="2006-06-26 00:00:00 +0000" &&
 	GIT_COMMITTER_DATE="2006-06-26 00:00:00 +0000" &&
 	export GIT_AUTHOR_DATE GIT_COMMITTER_DATE &&
 
+	test_oid_cache <<-EOF &&
+	one sha1:8e32a6d901327a23ef831511badce7bf3bf46689
+	one sha256:8739546433ab1ac72ee93088dce611210effee072b2b586ceac6dde43ebec9ce
+
+	three_file sha1:0e3b14047d3ee365f4f2a1b673db059c3972589c
+	three_file sha256:bc4447d50c07497a8bfe6eef817f2364ecca9d471452e43b52756cc1a908bd32
+
+	master sha1:6c9dec2b923228c9ff994c6cfe4ae16c12408dc5
+	master sha256:8521c3072461fcfe8f32d67f95cc6e6b832a2db2fa29769ffc788bce85ebcd75
+
+	one_tree sha1:22feea448b023a2d864ef94b013735af34d238ba
+	one_tree sha256:6e4743f4ef2356b881dda5e91f5c7cdffe870faf350bf7b312f80a20935f5d83
+
+	three sha1:c61a82b60967180544e3c19f819ddbd0c9f89899
+	three sha256:0cc6d1eda617ded715170786e31ba4e2d0185404ec5a3508dd0d73b324860c6a
+
+	two sha1:525b7fb068d59950d185a8779dc957c77eed73ba
+	two sha256:3b21de3440cd38c2a9e9b464adb923f7054949ed4c918e1a0ac4c95cd52774db
+
+	master2 sha1:754b754407bf032e9a2f9d5a9ad05ca79a6b228f
+	master2 sha256:6c7abaea8a6d8ef4d89877e68462758dc6774690fbbbb0e6d7dd57415c9abde0
+
+	two2 sha1:6134ee8f857693b96ff1cc98d3e2fd62b199e5a8
+	two2 sha256:87a2d3ee29c83a3dc7afd41c0606b11f67603120b910a7be7840accdc18344d4
+
+	three2 sha1:0567da4d5edd2ff4bb292a465ba9e64dcad9536b
+	three2 sha256:cceb3e8eca364fa9a0a39a1efbebecacc664af86cbbd8070571f5faeb5f0e8c3
+	EOF
+
 	echo >file original &&
 	git add file &&
 	git commit -a -m One &&
@@ -86,7 +130,8 @@ test_expect_success setup '
 		git config branch.br-$remote-octopus.remote $remote &&
 		git config branch.br-$remote-octopus.merge refs/heads/one &&
 		git config --add branch.br-$remote-octopus.merge two
-	done
+	done &&
+	build_script sed_script
 '
 
 # Merge logic depends on branch properties and Pull: or .fetch lines
@@ -137,6 +182,10 @@ do
 	actual_r="$pfx-refs.$test"
 
 	test_expect_success "$cmd" '
+		cp "$expect_f" expect_f &&
+		convert_expected expect_f sed_script &&
+		cp "$expect_r" expect_r &&
+		convert_expected expect_r sed_script &&
 		{
 			echo "# $cmd"
 			set x $cmd; shift
@@ -152,18 +201,18 @@ do
 			cat .git/FETCH_HEAD
 		} >"$actual_f" &&
 		git show-ref >"$actual_r" &&
-		if test -f "$expect_f"
+		if test -f "expect_f"
 		then
-			test_cmp "$expect_f" "$actual_f" &&
+			test_cmp "expect_f" "$actual_f" &&
 			rm -f "$actual_f"
 		else
 			# this is to help developing new tests.
 			cp "$actual_f" "$expect_f"
 			false
 		fi &&
-		if test -f "$expect_r"
+		if test -f "expect_r"
 		then
-			test_cmp "$expect_r" "$actual_r" &&
+			test_cmp "expect_r" "$actual_r" &&
 			rm -f "$actual_r"
 		else
 			# this is to help developing new tests.