Fix another broken test

Author: tvernum

x-pack/plugin/core/src/test/java/org/elasticsearch/license/LicenseOperationModeUpdateTests.java

@@ -35,15 +35,19 @@ public void init() throws Exception {
 
     public void testLicenseOperationModeUpdate() throws Exception {
         License.LicenseType type = randomFrom(License.LicenseType.values());
-        License license = License.builder()
-                .uid("id")
-                .expiryDate(0)
-                .issueDate(0)
-                .issuedTo("elasticsearch")
-                .issuer("issuer")
-                .type(type)
-                .maxNodes(1)
-                .build();
+        final License.Builder licenseBuilder = License.builder()
+            .uid("id")
+            .expiryDate(0)
+            .issueDate(0)
+            .issuedTo("elasticsearch")
+            .issuer("issuer")
+            .type(type);
+        if (type == License.LicenseType.ENTERPRISE) {
+            licenseBuilder.maxResourceUnits(1);
+        } else {
+            licenseBuilder.maxNodes(1);
+        }
+        License license = licenseBuilder.build();
 
         assertThat(license.operationMode(), equalTo(License.OperationMode.resolve(type)));
         OperationModeFileWatcherTests.writeMode("gold", licenseModeFile);