From 1fe1438cccf114c9d90a3de6167b142c4a185659 Mon Sep 17 00:00:00 2001
From: Boris Besemer <borisbesemer@gmail.com>
Date: Mon, 1 Jul 2024 15:47:53 +0200
Subject: [PATCH] test(cache): test the cacher

---
 src/write.test.ts | 82 +++++++++++++++++++++++++++++++++++++++++++++--
 src/write.ts      |  2 +-
 2 files changed, 80 insertions(+), 4 deletions(-)

diff --git a/src/write.test.ts b/src/write.test.ts
index 4439474..699b47e 100644
--- a/src/write.test.ts
+++ b/src/write.test.ts
@@ -1,7 +1,83 @@
 import { describe, expect, test } from "vitest";
+import { updateCache } from "./write";
 
-describe("write to file", () => {
-	test("Hello", () => {
-		expect(true).toBeTruthy();
+describe("cache", () => {
+	test("writes output to empty cache", () => {
+		const cache = {};
+
+		updateCache({
+			cache,
+			data: {
+				Test: new Set(["hello"]),
+				"Test.NestedNamespace": new Set(["foobar"]),
+			},
+			source: {},
+		});
+
+		expect(cache).toEqual({
+			Test: {
+				hello: "Test.hello",
+				NestedNamespace: {
+					foobar: "Test.NestedNamespace.foobar",
+				},
+			},
+		});
+	});
+
+	test("writes output to existing cache", () => {
+		const cache = {
+			Test: {
+				hello: "Test.hello",
+				NestedNamespace: {
+					foobar: "Test.NestedNamespace.foobar",
+				},
+			},
+		};
+
+		updateCache({
+			cache,
+			data: {
+				Test: new Set(["test"]),
+				"Test.NestedNamespace": new Set(["test"]),
+			},
+			source: {},
+		});
+
+		expect(cache).toEqual({
+			Test: {
+				hello: "Test.hello",
+				test: "Test.test",
+				NestedNamespace: {
+					foobar: "Test.NestedNamespace.foobar",
+					test: "Test.NestedNamespace.test",
+				},
+			},
+		});
+	});
+
+	test("updates labels with existing source", () => {
+		const cache = {};
+
+		updateCache({
+			cache,
+			data: {
+				Test: new Set(["hello"]),
+				"Test.NestedNamespace": new Set(["foobar"]),
+			},
+			source: {
+				Test: {
+					hello: "Hello",
+				},
+			},
+		});
+
+		expect(cache).toEqual({
+			Test: {
+				hello: "Hello",
+				NestedNamespace: {
+					foobar: "Test.NestedNamespace.foobar",
+				},
+			},
+		});
 	});
 });
diff --git a/src/write.ts b/src/write.ts
index 3cf749b..7117126 100644
--- a/src/write.ts
+++ b/src/write.ts
@@ -63,7 +63,7 @@ export async function processFiles(
 /**
  * Update existing cache based on given data and source labels
  */
-function updateCache({
+export function updateCache({
 	cache,
 	source,
 	data,