Fixed tests for #24

Author: sapessi

aws-serverless-java-container-core/src/main/java/com/amazonaws/serverless/proxy/internal/jaxrs/AwsProxySecurityContext.java

@@ -90,7 +90,7 @@ public boolean isSecure() {
 
 
     public String getAuthenticationScheme() {
-        if (event.getRequestContext().getAuthorizer().getClaims() != null && event.getRequestContext().getAuthorizer().getClaims().getSubject() != null) {
+        if (event.getRequestContext().getAuthorizer() != null && event.getRequestContext().getAuthorizer().getClaims() != null && event.getRequestContext().getAuthorizer().getClaims().getSubject() != null) {
             return AUTH_SCHEME_COGNITO_POOL;
         } else if (event.getRequestContext().getAuthorizer() != null) {
             return AUTH_SCHEME_CUSTOM;

aws-serverless-java-container-core/src/main/java/com/amazonaws/serverless/proxy/internal/testutils/AwsProxyRequestBuilder.java

@@ -16,6 +16,8 @@
 import com.amazonaws.serverless.proxy.internal.model.ApiGatewayRequestContext;
 import com.amazonaws.serverless.proxy.internal.model.ApiGatewayRequestIdentity;
 import com.amazonaws.serverless.proxy.internal.model.AwsProxyRequest;
+import com.amazonaws.serverless.proxy.internal.model.CognitoAuthorizerClaims;
+
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 
@@ -167,6 +169,12 @@ public AwsProxyRequestBuilder authorizerContextValue(String key, String value) {
     public AwsProxyRequestBuilder cognitoUserPool(String identityId) {
         this.request.getRequestContext().getIdentity().setCognitoAuthenticationType("POOL");
         this.request.getRequestContext().getIdentity().setCognitoIdentityId(identityId);
+        if (this.request.getRequestContext().getAuthorizer() == null) {
+            this.request.getRequestContext().setAuthorizer(new ApiGatewayAuthorizerContext());
+        }
+        this.request.getRequestContext().getAuthorizer().setClaims(new CognitoAuthorizerClaims());
+        this.request.getRequestContext().getAuthorizer().getClaims().setSubject(identityId);
+        
         return this;
     }