1 files changed, 56 insertions, 0 deletions
diff --git a/spec/frontend/packages_and_registries/settings/group/graphl/utils/cache_update_spec.js b/spec/frontend/packages_and_registries/settings/group/graphl/utils/cache_update_spec.js
new file mode 100644
index 00000000000..e1a46f97318
--- /dev/null
+++ b/spec/frontend/packages_and_registries/settings/group/graphl/utils/cache_update_spec.js
@@ -0,0 +1,56 @@
+import expirationPolicyQuery from '~/packages_and_registries/settings/group/graphql/queries/get_group_packages_settings.query.graphql';
+import { updateGroupPackageSettings } from '~/packages_and_registries/settings/group/graphql/utils/cache_update';
+
+describe('Package and Registries settings group cache updates', () => {
+  let client;
+
+  const payload = {
+    data: {
+      updateNamespacePackageSettings: {
+        packageSettings: {
+          mavenDuplicatesAllowed: false,
+          mavenDuplicateExceptionRegex: 'latest[master]something',
+        },
+      },
+    },
+  };
+
+  const cacheMock = {
+    group: {
+      packageSettings: {
+        mavenDuplicatesAllowed: true,
+        mavenDuplicateExceptionRegex: '',
+      },
+    },
+  };
+
+  const queryAndVariables = {
+    query: expirationPolicyQuery,
+    variables: { fullPath: 'foo' },
+  };
+
+  beforeEach(() => {
+    client = {
+      readQuery: jest.fn().mockReturnValue(cacheMock),
+      writeQuery: jest.fn(),
+    };
+  });
+  describe('updateGroupPackageSettings', () => {
+    it('calls readQuery', () => {
+      updateGroupPackageSettings('foo')(client, payload);
+      expect(client.readQuery).toHaveBeenCalledWith(queryAndVariables);
+    });
+
+    it('writes the correct result in the cache', () => {
+      updateGroupPackageSettings('foo')(client, payload);
+      expect(client.writeQuery).toHaveBeenCalledWith({
+        ...queryAndVariables,
+        data: {
+          group: {
+            ...payload.data.updateNamespacePackageSettings,
+          },
+        },
+      });
+    });
+  });
+});