Initial Move from Azure DevOps to GitHub

src/Common/ObjectCache.test.ts

@@ -0,0 +1,33 @@
+import { ObjectCache } from "./ObjectCache";
+
+describe("Object cache", () => {
+  it("should keep size at or below limit", () => {
+    const cache = new ObjectCache<number>(2);
+    cache.set("a", 1);
+    cache.set("b", 2);
+    cache.set("c", 3);
+    cache.set("d", 4);
+    expect(cache.size()).toBe(2);
+  });
+
+  it("should remove first added element to keep size at limit", () => {
+    const cache = new ObjectCache<number>(2);
+    cache.set("a", 1);
+    cache.set("b", 2);
+    cache.set("c", 3);
+    expect(cache.has("a")).toBe(false);
+    expect(cache.has("b")).toBe(true);
+    expect(cache.has("c")).toBe(true);
+  });
+
+  it("should remove first accessed element to keep size at limit", () => {
+    const cache = new ObjectCache<number>(2);
+    cache.set("a", 1);
+    cache.set("b", 2);
+    cache.get("a");
+    cache.set("c", 3);
+    expect(cache.has("a")).toBe(true);
+    expect(cache.has("b")).toBe(false);
+    expect(cache.has("c")).toBe(true);
+  });
+});