HookState adhears to OCI

Signed-off-by: George Lestaris <glestaris@pivotal.io>
Signed-off-by: Ed King <eking@pivotal.io>

libcontainer/utils/utils_test.go

@@ -23,3 +23,24 @@ func TestGenerateName(t *testing.T) {
 		t.Fatalf("expected name to be %d chars but received %d", expected, len(name))
 	}
 }
+
+var labelTest = []struct {
+	labels        []string
+	query         string
+	expectedValue string
+}{
+	{[]string{"bundle=/path/to/bundle"}, "bundle", "/path/to/bundle"},
+	{[]string{"test=a", "test=b"}, "bundle", ""},
+	{[]string{"bundle=a", "test=b", "bundle=c"}, "bundle", "a"},
+	{[]string{"", "test=a", "bundle=b"}, "bundle", "b"},
+	{[]string{"test", "bundle=a"}, "bundle", "a"},
+	{[]string{"test=a", "bundle="}, "bundle", ""},
+}
+
+func TestSearchLabels(t *testing.T) {
+	for _, tt := range labelTest {
+		if v := SearchLabels(tt.labels, tt.query); v != tt.expectedValue {
+			t.Errorf("expected value '%s' for query '%s'; got '%s'", tt.expectedValue, tt.query, v)
+		}
+	}
+}