Add simple test cases

bryphe-coder · bryphe-coder · commit 3f556ee3f233 · 2022-01-26T01:29:35.000Z
diff --git a/site/test_helpers/mocks.ts b/site/test_helpers/mocks.ts
@@ -36,4 +36,5 @@ export const MockWorkspace: Workspace = {
   created_at: "",
   updated_at: "",
   project_id: "project-id",
+  owner_id: "test-user-id",
 }
diff --git a/site/util/array.test.ts b/site/util/array.test.ts
@@ -0,0 +1,17 @@
+import { firstOrItem } from "./array"
+
+describe("array", () => {
+  describe("firstOrItem", () => {
+    it("returns null if empty array", () => {
+      expect(firstOrItem([])).toBeNull()
+    })
+
+    it("returns first item if array with more one item", () => {
+      expect(firstOrItem(["a", "b"])).toEqual("a")
+    })
+
+    it("returns item if single item", () => {
+      expect(firstOrItem("c")).toEqual("c")
+    })
+  })
+})
diff --git a/site/util/array.ts b/site/util/array.ts
@@ -1,3 +1,9 @@
+/**
+ * Helper function that, given an array or a single item:
+ * - If an array with no elements, returns null
+ * - If an array with 1 or more elements, returns the first element
+ * - If a single item, returns that item
+ */
 export const firstOrItem = <T>(itemOrItems: T | T[]): T | null => {
   if (Array.isArray(itemOrItems)) {
     return itemOrItems.length > 0 ? itemOrItems[0] : null

Original file line number	Diff line number	Diff line change
`@@ -36,4 +36,5 @@ export const MockWorkspace: Workspace = {`
`36`	`36`	`created_at: "",`
`37`	`37`	`updated_at: "",`
`38`	`38`	`project_id: "project-id",`
	`39`	`+ owner_id: "test-user-id",`
`39`	`40`	`}`