config: add test cases for empty value and no value config variables.

diff --git a/t/t5302-pack-index.sh b/t/t5302-pack-index.sh
index 4f58c4c3f93b1629a564f8b23ad672100d64798d..67b9a7b84a6a411d44b6b5f90f7b33d6160b5702 100755 (executable)
--- a/t/t5302-pack-index.sh
+++ b/t/t5302-pack-index.sh
@@ -42,9 +42,9 @@ test_expect_success \
     'both packs should be identical' \
     'cmp "test-1-${pack1}.pack" "test-2-${pack2}.pack"'
 
-test_expect_failure \
+test_expect_success \
     'index v1 and index v2 should be different' \
-    'cmp "test-1-${pack1}.idx" "test-2-${pack2}.idx"'
+    '! cmp "test-1-${pack1}.idx" "test-2-${pack2}.idx"'
 
 test_expect_success \
     'index-pack with index version 1' \
@@ -61,17 +61,33 @@ test_expect_success \
 
 test_expect_success \
     'index v2: force some 64-bit offsets with pack-objects' \
-    'pack3=$(git pack-objects --index-version=2,0x40000 test-3 <obj-list) &&
-     git verify-pack -v "test-3-${pack3}.pack"'
+    'pack3=$(git pack-objects --index-version=2,0x40000 test-3 <obj-list)'
+
+have_64bits=
+if msg=$(git verify-pack -v "test-3-${pack3}.pack" 2>&1) ||
+       ! echo "$msg" | grep "pack too large .* off_t"
+then
+       have_64bits=t
+else
+       say "skipping tests concerning 64-bit offsets"
+fi
+
+test "$have_64bits" &&
+test_expect_success \
+    'index v2: verify a pack with some 64-bit offsets' \
+    'git verify-pack -v "test-3-${pack3}.pack"'
 
-test_expect_failure \
+test "$have_64bits" &&
+test_expect_success \
     '64-bit offsets: should be different from previous index v2 results' \
-    'cmp "test-2-${pack2}.idx" "test-3-${pack3}.idx"'
+    '! cmp "test-2-${pack2}.idx" "test-3-${pack3}.idx"'
 
+test "$have_64bits" &&
 test_expect_success \
     'index v2: force some 64-bit offsets with index-pack' \
     'git-index-pack --index-version=2,0x40000 -o 3.idx "test-1-${pack1}.pack"'
 
+test "$have_64bits" &&
 test_expect_success \
     '64-bit offsets: index-pack result should match pack-objects one' \
     'cmp "test-3-${pack3}.idx" "3.idx"'
@@ -96,31 +112,31 @@ test_expect_success \
          bs=1 count=20 conv=notrunc &&
        git cat-file blob "$delta_sha1" > blob_2 )'
 
-test_expect_failure \
+test_expect_success \
     '[index v1] 3) corrupted delta happily returned wrong data' \
-    'cmp blob_1 blob_2'
+    '! cmp blob_1 blob_2'
 
-test_expect_failure \
+test_expect_success \
     '[index v1] 4) confirm that the pack is actually corrupted' \
-    'git fsck --full $commit'
+    '! git fsck --full $commit'
 
 test_expect_success \
     '[index v1] 5) pack-objects happily reuses corrupted data' \
     'pack4=$(git pack-objects test-4 <obj-list) &&
      test -f "test-4-${pack1}.pack"'
 
-test_expect_failure \
+test_expect_success \
     '[index v1] 6) newly created pack is BAD !' \
-    'git verify-pack -v "test-4-${pack1}.pack"'
+    '! git verify-pack -v "test-4-${pack1}.pack"'
 
 test_expect_success \
     '[index v2] 1) stream pack to repository' \
     'rm -f .git/objects/pack/* &&
-     git-index-pack --index-version=2,0x40000 --stdin < "test-1-${pack1}.pack" &&
+     git-index-pack --index-version=2 --stdin < "test-1-${pack1}.pack" &&
      git prune-packed &&
      git count-objects | ( read nr rest && test "$nr" -eq 1 ) &&
      cmp "test-1-${pack1}.pack" ".git/objects/pack/pack-${pack1}.pack" &&
-     cmp "test-3-${pack1}.idx"  ".git/objects/pack/pack-${pack1}.idx"'
+     cmp "test-2-${pack1}.idx"  ".git/objects/pack/pack-${pack1}.idx"'
 
 test_expect_success \
     '[index v2] 2) create a stealth corruption in a delta base reference' \
@@ -134,16 +150,16 @@ test_expect_success \
          bs=1 count=20 conv=notrunc &&
        git cat-file blob "$delta_sha1" > blob_4 )'
 
-test_expect_failure \
+test_expect_success \
     '[index v2] 3) corrupted delta happily returned wrong data' \
-    'cmp blob_3 blob_4'
+    '! cmp blob_3 blob_4'
 
-test_expect_failure \
+test_expect_success \
     '[index v2] 4) confirm that the pack is actually corrupted' \
-    'git fsck --full $commit'
+    '! git fsck --full $commit'
 
-test_expect_failure \
+test_expect_success \
     '[index v2] 5) pack-objects refuses to reuse corrupted data' \
-    'git pack-objects test-5 <obj-list'
+    '! git pack-objects test-5 <obj-list'
 
 test_done