test-lib: add the '--stress' option to run a test repeatedly under load

diff --git a/t/t7004-tag.sh b/t/t7004-tag.sh
index 2aac77af701989dc16980268155d6e40500354bb..0b01862c23aa182ee4ae7ce2944a40b4449d6049 100755 (executable)
--- a/t/t7004-tag.sh
+++ b/t/t7004-tag.sh
@@ -325,11 +325,10 @@ test_expect_success \
        test_cmp expect actual
 '
 
->expect
 test_expect_success \
        'listing tags using v.* should print nothing because none have v.' '
        git tag -l "v.*" > actual &&
-       test_cmp expect actual
+       test_must_be_empty actual
 '
 
 cat >expect <<EOF
@@ -363,7 +362,7 @@ test_expect_success 'tag -l <pattern> -l <pattern> works, as our buggy documenta
 '
 
 test_expect_success 'listing tags in column' '
-       COLUMNS=40 git tag -l --column=row >actual &&
+       COLUMNS=41 git tag -l --column=row >actual &&
        cat >expected <<\EOF &&
 a1      aa1     cba     t210    t211
 v0.2.1  v1.0    v1.0.1  v1.1.3
@@ -693,9 +692,8 @@ test_expect_success \
 '
 
 test_expect_success 'The -n 100 invocation means -n --list 100, not -n100' '
-       >expect &&
        git tag -n 100 >actual &&
-       test_cmp expect actual &&
+       test_must_be_empty actual &&
 
        git tag -m "A msg" 100 &&
        echo "100             A msg" >expect &&
@@ -974,9 +972,8 @@ test_expect_success GPG 'verifying a proper tag with --format pass and format ac
 '
 
 test_expect_success GPG 'verifying a forged tag with --format should fail silently' '
-       >expect &&
        test_must_fail git tag -v --format="tagname : %(tag)" "forged-tag" >actual &&
-       test_cmp expect actual
+       test_must_be_empty actual
 '
 
 # blank and empty messages for signed tags:
@@ -1056,7 +1053,18 @@ test_expect_success GPG \
        git tag -s -F sigblanknonlfile blanknonlfile-signed-tag &&
        get_tag_msg blanknonlfile-signed-tag >actual &&
        test_cmp expect actual &&
-       git tag -v signed-tag
+       git tag -v blanknonlfile-signed-tag
+'
+
+test_expect_success GPG 'signed tag with embedded PGP message' '
+       cat >msg <<-\EOF &&
+       -----BEGIN PGP MESSAGE-----
+
+       this is not a real PGP message
+       -----END PGP MESSAGE-----
+       EOF
+       git tag -s -F msg confusing-pgp-message &&
+       git tag -v confusing-pgp-message
 '
 
 # messages with commented lines for signed tags:
@@ -1343,6 +1351,19 @@ test_expect_success GPG \
        'test_config gpg.program echo &&
         test_must_fail git tag -s -m tail tag-gpg-failure'
 
+# try to sign with bad user.signingkey
+test_expect_success GPGSM \
+       'git tag -s fails if gpgsm is misconfigured (bad key)' \
+       'test_config user.signingkey BobTheMouse &&
+        test_config gpg.format x509 &&
+        test_must_fail git tag -s -m tail tag-gpg-failure'
+
+# try to produce invalid signature
+test_expect_success GPGSM \
+       'git tag -s fails if gpgsm is misconfigured (bad signature format)' \
+       'test_config gpg.x509.program echo &&
+        test_config gpg.format x509 &&
+        test_must_fail git tag -s -m tail tag-gpg-failure'
 
 # try to verify without gpg:
 
@@ -1371,9 +1392,8 @@ test_expect_success 'message in editor has initial comment: first line' '
 test_expect_success \
        'message in editor has initial comment: remainder' '
        # remove commented lines from the remainder -- should be empty
-       >rest.expect &&
        sed -e 1d -e "/^#/d" <actual >rest.actual &&
-       test_cmp rest.expect rest.actual
+       test_must_be_empty rest.actual
 '
 
 get_tag_header reuse $commit commit $time >expect
@@ -1455,19 +1475,18 @@ test_expect_success 'checking that first commit is in all tags (relative)' "
 
 # All the --contains tests above, but with --no-contains
 test_expect_success 'checking that first commit is not listed in any tag with --no-contains  (hash)' "
-       >expected &&
        git tag -l --no-contains $hash1 v* >actual &&
-       test_cmp expected actual
+       test_must_be_empty actual
 "
 
 test_expect_success 'checking that first commit is in all tags (tag)' "
        git tag -l --no-contains v1.0 v* >actual &&
-       test_cmp expected actual
+       test_must_be_empty actual
 "
 
 test_expect_success 'checking that first commit is in all tags (relative)' "
        git tag -l --no-contains HEAD~2 v* >actual &&
-       test_cmp expected actual
+       test_must_be_empty actual
 "
 
 cat > expected <<EOF
@@ -1491,12 +1510,9 @@ test_expect_success 'inverse of the last test, with --no-contains' "
        test_cmp expected actual
 "
 
-cat > expected <<EOF
-EOF
-
 test_expect_success 'checking that third commit has no tags' "
        git tag -l --contains $hash3 v* >actual &&
-       test_cmp expected actual
+       test_must_be_empty actual
 "
 
 cat > expected <<EOF
@@ -1595,9 +1611,8 @@ test_expect_success 'checking that --contains can be used in non-list mode' '
 '
 
 test_expect_success 'checking that initial commit is in all tags with --no-contains' "
-       >expected &&
        git tag -l --no-contains $hash1 v* >actual &&
-       test_cmp expected actual
+       test_must_be_empty actual
 "
 
 # mixing modes and options:
@@ -1894,7 +1909,6 @@ test_expect_success 'version sort with very long prerelease suffix' '
 '
 
 test_expect_success ULIMIT_STACK_SIZE '--contains and --no-contains work in a deep repo' '
-       >expect &&
        i=1 &&
        while test $i -lt 8000
        do
@@ -1909,7 +1923,7 @@ EOF"
        git checkout master &&
        git tag far-far-away HEAD^ &&
        run_with_limited_stack git tag --contains HEAD >actual &&
-       test_cmp expect actual &&
+       test_must_be_empty actual &&
        run_with_limited_stack git tag --no-contains HEAD >actual &&
        test_line_count "-gt" 10 actual
 '