Replace string with MaaTokenPayload contant

Author: cYKatherine

src/test/java/com/uid2/shared/secure/AzureCCCoreAttestationServiceTest.java

@@ -147,8 +147,8 @@ private static void attest(ICoreAttestationService provider, Handler<AsyncResult
 
     static Stream<Arguments> argumentProvider() {
         return Stream.of(
-                Arguments.of("azure-cc"),
-                Arguments.of("azure-cc-aks")
+                Arguments.of(MaaTokenPayload.AZURE_CC_AKS_PROTOCOL),
+                Arguments.of(MaaTokenPayload.AZURE_CC_AKS_PROTOCOL)
         );
     }
 }

src/test/java/com/uid2/shared/secure/azurecc/MaaTokenSignatureValidatorTest.java

@@ -46,8 +46,8 @@ public void testE2E() throws AttestationException {
 
     static Stream<Arguments> argumentProvider() {
         return Stream.of(
-                Arguments.of("/com.uid2.shared/test/secure/azurecc/jwt_payload_aci.json", "azure-cc"),
-                Arguments.of("/com.uid2.shared/test/secure/azurecc/jwt_payload_aks.json", "azure-cc-aks")
+                Arguments.of("/com.uid2.shared/test/secure/azurecc/jwt_payload_aci.json", MaaTokenPayload.AZURE_CC_ACI_PROTOCOL),
+                Arguments.of("/com.uid2.shared/test/secure/azurecc/jwt_payload_aks.json", MaaTokenPayload.AZURE_CC_AKS_PROTOCOL)
         );
     }
 }

src/test/java/com/uid2/shared/secure/azurecc/PolicyValidatorTest.java

@@ -145,7 +145,7 @@ public void testValidationSuccess_AksWithAzureSignedKataccUvm() throws Attestati
         var aksPayload = generateBasicPayload()
                 .toBuilder()
                 .complianceStatus("azure-signed-katacc-uvm")
-                .azureProtocol("azure-cc-aks")
+                .azureProtocol(MaaTokenPayload.AZURE_CC_AKS_PROTOCOL)
                 .build();
         var enclaveId = validator.validate(aksPayload, PUBLIC_KEY);
         assertEquals(CCE_POLICY_DIGEST, enclaveId);
@@ -157,7 +157,7 @@ public void testValidationFailure_AksWithOtherUvm() {
         var aksPayload = generateBasicPayload()
                 .toBuilder()
                 .complianceStatus("fake-compliance")
-                .azureProtocol("azure-cc-aks")
+                .azureProtocol(MaaTokenPayload.AZURE_CC_AKS_PROTOCOL)
                 .build();
         Throwable t = assertThrows(AttestationException.class, ()-> validator.validate(aksPayload, PUBLIC_KEY));
         assertEquals("Not run in Azure Compliance Utility VM", t.getMessage());