1 files changed, 37 insertions, 0 deletions
diff --git a/spec/javascripts/helpers/vuex_action_helper.js b/spec/javascripts/helpers/vuex_action_helper.js
new file mode 100644
index 00000000000..2d386fe1da5
--- /dev/null
+++ b/spec/javascripts/helpers/vuex_action_helper.js
@@ -0,0 +1,37 @@
+/* eslint-disable */
+
+/**
+ * helper for testing action with expected mutations
+ * https://vuex.vuejs.org/en/testing.html
+ */
+export default (action, payload, state, expectedMutations, done) => {
+  let count = 0;
+
+  // mock commit
+  const commit = (type, payload) => {
+    const mutation = expectedMutations[count];
+
+    try {
+      expect(mutation.type).to.equal(type);
+      if (payload) {
+        expect(mutation.payload).to.deep.equal(payload);
+      }
+    } catch (error) {
+      done(error);
+    }
+
+    count++;
+    if (count >= expectedMutations.length) {
+      done();
+    }
+  };
+
+  // call the action with mocked store and arguments
+  action({ commit, state }, payload);
+
+  // check if no mutations should have been dispatched
+  if (expectedMutations.length === 0) {
+    expect(count).to.equal(0);
+    done();
+  }
+};