Update XdsTrustManagerFactoryTest.java

Author: shivaspeaks

xds/src/test/java/io/grpc/xds/internal/security/trust/XdsTrustManagerFactoryTest.java

@@ -185,8 +185,15 @@ public void constructorRootCert_nonStaticContext_systemRootCerts_valid()
             DataSource.newBuilder().setFilename(TestUtils.loadCert(CA_PEM_FILE).getAbsolutePath()))
         .setSystemRootCerts(CertificateValidationContext.SystemRootCerts.getDefaultInstance())
         .build();
-    new XdsTrustManagerFactory(
-        new X509Certificate[] {x509Cert}, certValidationContext, false);
+    XdsTrustManagerFactory factory =
+        new XdsTrustManagerFactory(new X509Certificate[] {x509Cert}, certValidationContext, false);
+    XdsX509TrustManager xdsX509TrustManager = (XdsX509TrustManager) factory.getTrustManagers()[0];
+    assertThat(xdsX509TrustManager.getAcceptedIssuers()).isNotNull();
+    assertThat(xdsX509TrustManager.getAcceptedIssuers()).hasLength(2);
+    assertThat(xdsX509TrustManager.getAcceptedIssuers()[0].getIssuerX500Principal().getName())
+        .isEqualTo("CN=testca,O=Internet Widgits Pty Ltd,ST=Some-State,C=AU");
+    assertThat(xdsX509TrustManager.getAcceptedIssuers()[1].getIssuerX500Principal().getName())
+        .isEqualTo("CN=testca,O=Internet Widgits Pty Ltd,ST=Some-State,C=AU");
   }
 
   @Test