Add tests for FarmwareReducer

src/__test_support__/fake_state/resources.ts

@@ -1,51 +1,52 @@
 import { Everything } from "../../interfaces";
 import { buildResourceIndex } from "../resource_index_builder";
-import { TaggedFarmEvent, TaggedSequence, TaggedRegimen } from "../../resources/tagged_resources";
+import { TaggedFarmEvent, TaggedSequence, TaggedRegimen, TaggedImage } from "../../resources/tagged_resources";
 import { ExecutableType } from "../../farm_designer/interfaces";
+import { fakeResource } from "../fake_resource";
 
 export let resources: Everything["resources"] = buildResourceIndex();
 
 export function fakeSequence(): TaggedSequence {
-  return {
-    "kind": "sequences",
-    uuid: "---",
-    "body": {
-      args: { version: 4 },
-      id: 12,
-      color: "red",
-      name: "fake",
-      kind: "sequence",
-      body: []
-    }
-  };
+  return fakeResource("sequences", {
+    args: { version: 4 },
+    id: 12,
+    color: "red",
+    name: "fake",
+    kind: "sequence",
+    body: []
+  });
 }
 
 export function fakeRegimen(): TaggedRegimen {
-  return {
-    uuid: "Whatever",
-    kind: "regimens",
-    body: {
-      name: "Foo",
-      color: "red",
-      regimen_items: []
-    }
-  };
+  return fakeResource("regimens", {
+    name: "Foo",
+    color: "red",
+    regimen_items: []
+  });
 }
 
 export function fakeFarmEvent(exe_type: ExecutableType,
   exe_id: number): TaggedFarmEvent {
-  return {
-    "kind": "farm_events",
-    uuid: "---",
-    "body": {
-      "id": 21,
-      "start_time": "2017-05-22T05:00:00.000Z",
-      "end_time": "2017-05-30T05:00:00.000Z",
-      "repeat": 1,
-      "time_unit": "never",
-      "executable_id": exe_id,
-      "executable_type": exe_type,
-      "calendar": []
-    }
-  };
+  return fakeResource("farm_events", {
+    "id": 21,
+    "start_time": "2017-05-22T05:00:00.000Z",
+    "end_time": "2017-05-30T05:00:00.000Z",
+    "repeat": 1,
+    "time_unit": "never",
+    "executable_id": exe_id,
+    "executable_type": exe_type,
+    "calendar": []
+  });
+}
+
+export function fakeImage(): TaggedImage {
+  return fakeResource("images", {
+    id: 23,
+    device_id: 46,
+    attachment_processed_at: undefined,
+    updated_at: new Date().toISOString(),
+    created_at: new Date().toISOString(),
+    attachment_url: "https://i.redd.it/xz0e2kinm4cz.jpg",
+    meta: { x: 0, y: 0, z: 0 }
+  });
 }

src/farmware/__tests__/reducer_test.ts

@@ -0,0 +1,30 @@
+
+import { famrwareReducer } from "../reducer";
+import { FarmwareState } from "../interfaces";
+import { Actions } from "../../constants";
+import { fakeImage } from "../../__test_support__/fake_state/resources";
+
+describe("famrwareReducer", () => {
+  it("Removes UUIDs from state on deletion", () => {
+    let image = fakeImage();
+    let oldState: FarmwareState = { currentImage: image.uuid };
+    let newState = famrwareReducer(oldState, {
+      type: Actions.DESTROY_RESOURCE_OK,
+      payload: image
+    });
+    expect(oldState.currentImage).not.toEqual(newState.currentImage);
+    expect(newState.currentImage).toBeUndefined();
+  });
+
+  it("adds UUID to state on SELECT_IMAGE", () => {
+    let image = fakeImage();
+    let oldState: FarmwareState = { currentImage: undefined };
+    let newState = famrwareReducer(oldState, {
+      type: Actions.SELECT_IMAGE,
+      payload: image.uuid
+    });
+    expect(oldState.currentImage).not.toEqual(newState.currentImage);
+    expect(newState.currentImage).not.toBeUndefined();
+    expect(newState.currentImage).toBe(image.uuid);
+  });
+});