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xterminal/tests/disposable.test.ts

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+import { describe, it, expect, beforeEach } from "vitest";
+import Disposable from "../source/base/disposable";
+
+describe("Disposable", () => {
+    let disposable: Disposable;
+
+    beforeEach(() => {
+        disposable = new Disposable();
+    });
+
+    describe("constructor", () => {
+        it("should not be disposed initially", () => {
+            expect(disposable.isDisposed).toBe(false);
+        });
+    });
+
+    describe("register", () => {
+        it("should register disposable", () => {
+            let disposed = false;
+            const d = {
+                dispose: () => {
+                    disposed = true;
+                }
+            };
+            disposable.register(d);
+            disposable.dispose();
+            expect(disposed).toBe(true);
+        });
+
+        it("should dispose immediately if already disposed", () => {
+            disposable.dispose();
+            let disposed = false;
+            const d = {
+                dispose: () => {
+                    disposed = true;
+                }
+            };
+            disposable.register(d);
+            expect(disposed).toBe(true);
+        });
+    });
+
+    describe("dispose", () => {
+        it("should dispose all registered", () => {
+            let count = 0;
+            disposable.register({ dispose: () => count++ });
+            disposable.register({ dispose: () => count++ });
+            disposable.dispose();
+            expect(count).toBe(2);
+            expect(disposable.isDisposed).toBe(true);
+        });
+
+        it("should not dispose twice", () => {
+            let count = 0;
+            disposable.register({ dispose: () => count++ });
+            disposable.dispose();
+            disposable.dispose();
+            expect(count).toBe(1);
+        });
+    });
+});