feat: added test for areEqualElements function

src/utils/comparator/areEqualElements.test.ts

@@ -0,0 +1,44 @@
+import { areEqualElements } from "./areEqualElements.ts";
+
+const baseScoreElement = {
+  name: "foo",
+  score: 0,
+  reason: "sample reason",
+  details: ["sample detail"],
+  documentation: {
+    short: "documentation short",
+    url: "documentation url",
+  },
+};
+
+describe("util: areEqualElements", () => {
+  it("returns true if two elements are equal", () => {
+    expect(
+      areEqualElements(
+        { ...baseScoreElement, details: ["foo"], reason: "foo" },
+        { ...baseScoreElement, details: ["foo"], reason: "foo" },
+      ),
+    ).toBe(true);
+  });
+
+  it("returns false if two elements are not equal", () => {
+    expect(
+      areEqualElements(
+        { ...baseScoreElement, details: ["foo"], reason: "foo" },
+        { ...baseScoreElement, details: ["bar"], reason: "bar" },
+      ),
+    ).toBe(false);
+    expect(
+      areEqualElements(
+        { ...baseScoreElement, details: ["foo"], reason: "foo" },
+        { ...baseScoreElement, details: ["bar"], reason: "foo" },
+      ),
+    ).toBe(false);
+    expect(
+      areEqualElements(
+        { ...baseScoreElement, details: ["foo"], reason: "foo" },
+        { ...baseScoreElement, details: ["foo"], reason: "bar" },
+      ),
+    ).toBe(false);
+  });
+});

src/utils/comparator/areEqualElements.ts

@@ -0,0 +1,10 @@
+import { ScoreElement } from "../../types";
+
+export const areEqualElements = (
+  currentElement: ScoreElement,
+  previousElement: ScoreElement,
+) =>
+  JSON.stringify(currentElement.details) ===
+    JSON.stringify(previousElement.details) &&
+  JSON.stringify(currentElement.reason) ===
+    JSON.stringify(previousElement.reason);

tsconfig.json

@@ -9,6 +9,7 @@
     "strict": true,
     "forceConsistentCasingInFileNames": true,
     "noFallthroughCasesInSwitch": true,
+    "allowImportingTsExtensions": true,
     "module": "esnext",
     "moduleResolution": "node",
     "resolveJsonModule": true,