add more glob test

Signed-off-by: Denny Hoang <dhoang@vmware.com>

pkg/apis/config/glob_test.go

@@ -39,6 +39,16 @@ func TestGlobMatch(t *testing.T) {
 		{glob: "repository/*", input: "index.docker.io/repository/image", match: true}, // Testing resolved digest
 		{glob: "image", input: "index.docker.io/library/image", match: true},           // Testing resolved digest and official dockerhub public repository
 		{glob: "[", input: "[", match: false, errString: "syntax error in pattern"},    // Invalid glob pattern
+		{glob: "gcr.io/projectsigstore/*", input: "gcr.io/projectsigstore/cosign", match: true},
+		{glob: "gcr.io/projectsigstore/*", input: "us.gcr.io/projectsigstore/cosign", match: false},
+		{glob: "*gcr.io/projectsigstore/*", input: "gcr.io/projectsigstore/cosign", match: true},
+		{glob: "*gcr.io/projectsigstore/*", input: "gcr.io/projectsigstore2/cosign", match: false},
+		{glob: "*gcr.io/*", input: "us.gcr.io/projectsigstore/cosign", match: false},  // Does not match since '*' only handles until next non-separator character '/'
+		{glob: "*gcr.io/*/*", input: "us.gcr.io/projectsigstore/cosign", match: true}, // Does match with multiple '*'
+		{glob: "us.gcr.io/*/*", input: "us.gcr.io/projectsigstore/cosign", match: true},
+		{glob: "us.gcr.io/*/*", input: "gcr.io/projectsigstore/cosign", match: false},
+		{glob: "*.gcr.io/*/*", input: "asia.gcr.io/projectsigstore/cosign", match: true},
+		{glob: "*.gcr.io/*/*", input: "gcr.io/projectsigstore/cosign", match: false},
 	}
 	for _, tc := range tests {
 		got, err := GlobMatch(tc.glob, tc.input)