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[PATCH v3 05/10] t6030: make test work with SHA-256

From
brian m. carlson <sandals@crustytoothpaste.net>
Date
Jun 28, 2019, 22:59 UTC
Message-ID
<20190628225928.622372-6-sandals@crustytoothpaste.net>
In-Reply-To
<20190628225928.622372-1-sandals@crustytoothpaste.net>

Compute several object ID values instead of hard-coding them, and use test_oid_to_path to cleanly produce a path for an object.

Note that the bisect code which is tested here remains sensitive to the hash algorithm in use because it uses the object ID to disambiguate between two equidistant commits. Fortunately, SHA-1 and SHA-256 disambiguate identically in the cases we care about, so there is no need to modify the test to accommodate this situation. However, if a further hash algorithm change occurs, this test may require some restructuring.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
---
 t/t6030-bisect-porcelain.sh | 31 ++++++++++++++++---------------
 1 file changed, 16 insertions(+), 15 deletions(-)
diff --git a/t/t6030-bisect-porcelain.sh b/t/t6030-bisect-porcelain.sh
index 49a394bd75..bdc42e9440 100755
--- a/t/t6030-bisect-porcelain.sh
+++ b/t/t6030-bisect-porcelain.sh
@@ -615,6 +615,7 @@ test_expect_success 'broken branch creation' '
 	git add missing/MISSING &&
 	git commit -m "6(broken): Added file that will be deleted" &&
 	git tag BROKEN_HASH6 &&
+	deleted=$(git rev-parse --verify HEAD:missing) &&
 	add_line_into_file "7(broken): second line on a broken branch" hello2 &&
 	git tag BROKEN_HASH7 &&
 	add_line_into_file "8(broken): third line on a broken branch" hello2 &&
@@ -622,12 +623,12 @@ test_expect_success 'broken branch creation' '
 	git rm missing/MISSING &&
 	git commit -m "9(broken): Remove missing file" &&
 	git tag BROKEN_HASH9 &&
-	rm .git/objects/39/f7e61a724187ab767d2e08442d9b6b9dab587d
+	rm .git/objects/$(test_oid_to_path $deleted)
 '
 
 echo "" > expected.ok
 cat > expected.missing-tree.default <<EOF
-fatal: unable to read tree 39f7e61a724187ab767d2e08442d9b6b9dab587d
+fatal: unable to read tree $deleted
 EOF
 
 test_expect_success 'bisect fails if tree is broken on start commit' '
@@ -713,12 +714,12 @@ test_expect_success 'bisect: demonstrate identification of damage boundary' "
 "
 
 cat > expected.bisect-log <<EOF
-# bad: [32a594a3fdac2d57cf6d02987e30eec68511498c] Add <4: Ciao for now> into <hello>.
-# good: [7b7f204a749c3125d5224ed61ea2ae1187ad046f] Add <2: A new day for git> into <hello>.
-git bisect start '32a594a3fdac2d57cf6d02987e30eec68511498c' '7b7f204a749c3125d5224ed61ea2ae1187ad046f'
-# good: [3de952f2416b6084f557ec417709eac740c6818c] Add <3: Another new day for git> into <hello>.
-git bisect good 3de952f2416b6084f557ec417709eac740c6818c
-# first bad commit: [32a594a3fdac2d57cf6d02987e30eec68511498c] Add <4: Ciao for now> into <hello>.
+# bad: [$HASH4] Add <4: Ciao for now> into <hello>.
+# good: [$HASH2] Add <2: A new day for git> into <hello>.
+git bisect start '$HASH4' '$HASH2'
+# good: [$HASH3] Add <3: Another new day for git> into <hello>.
+git bisect good $HASH3
+# first bad commit: [$HASH4] Add <4: Ciao for now> into <hello>.
 EOF
 
 test_expect_success 'bisect log: successful result' '
@@ -731,14 +732,14 @@ test_expect_success 'bisect log: successful result' '
 '
 
 cat > expected.bisect-skip-log <<EOF
-# bad: [32a594a3fdac2d57cf6d02987e30eec68511498c] Add <4: Ciao for now> into <hello>.
-# good: [7b7f204a749c3125d5224ed61ea2ae1187ad046f] Add <2: A new day for git> into <hello>.
-git bisect start '32a594a3fdac2d57cf6d02987e30eec68511498c' '7b7f204a749c3125d5224ed61ea2ae1187ad046f'
-# skip: [3de952f2416b6084f557ec417709eac740c6818c] Add <3: Another new day for git> into <hello>.
-git bisect skip 3de952f2416b6084f557ec417709eac740c6818c
+# bad: [$HASH4] Add <4: Ciao for now> into <hello>.
+# good: [$HASH2] Add <2: A new day for git> into <hello>.
+git bisect start '$HASH4' '$HASH2'
+# skip: [$HASH3] Add <3: Another new day for git> into <hello>.
+git bisect skip $HASH3
 # only skipped commits left to test
-# possible first bad commit: [32a594a3fdac2d57cf6d02987e30eec68511498c] Add <4: Ciao for now> into <hello>.
-# possible first bad commit: [3de952f2416b6084f557ec417709eac740c6818c] Add <3: Another new day for git> into <hello>.
+# possible first bad commit: [$HASH4] Add <4: Ciao for now> into <hello>.
+# possible first bad commit: [$HASH3] Add <3: Another new day for git> into <hello>.
 EOF
 
 test_expect_success 'bisect log: only skip commits left' '
Previous: brian m. carlsonNext: brian m. carlson
Message 12 of 17 in “Hash-independent tests, part 4”
  1. 00/10 Hash-independent tests, part 4brian m. carlson, Jun 28, 2019
  2. 01/10 t: add helper to convert object IDs to pathsbrian m. carlson, Jun 28, 2019
  3. t: decrease nesting in test_oid_to_pathJonathan Nieder, Aug 8, 2019
  4. Jeff KingAug 8, 2019
  5. brian m. carlsonAug 8, 2019
  6. SZEDER GáborAug 8, 2019
  7. Junio C HamanoAug 8, 2019
  8. brian m. carlsonAug 8, 2019
  9. 03/10 t1450: make hash size independentbrian m. carlson, Jun 28, 2019
  10. 04/10 t5000: make hash independentbrian m. carlson, Jun 28, 2019
  11. 02/10 t1410: make hash size independentbrian m. carlson, Jun 28, 2019
  12. 05/10 t6030: make test work with SHA-256brian m. carlson, Jun 28, 2019
  13. 06/10 t0027: make hash size independentbrian m. carlson, Jun 28, 2019
  14. 07/10 t0090: make test pass with SHA-256brian m. carlson, Jun 28, 2019
  15. 08/10 t1007: remove SHA1 prerequisitesbrian m. carlson, Jun 28, 2019
  16. 09/10 t1710: make hash independentbrian m. carlson, Jun 28, 2019
  17. 10/10 t2203: avoid hard-coded object ID valuesbrian m. carlson, Jun 28, 2019

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