1 files changed, 25 insertions, 0 deletions
diff --git a/test/background/operators/impls/DuplicateTabOperator.test.ts b/test/background/operators/impls/DuplicateTabOperator.test.ts
new file mode 100644
index 0000000..ce2c19d
--- /dev/null
+++ b/test/background/operators/impls/DuplicateTabOperator.test.ts
@@ -0,0 +1,25 @@
+import { expect } from "chai";
+import DuplicateTabOperator from "../../../../src/background/operators/impls/DuplicateTabOperator";
+import MockTabPresenter from "../../mock/MockTabPresenter";
+
+describe("DuplicateTabOperator", () => {
+  describe("#run", () => {
+    it("duplicate a tab", async () => {
+      const tabPresenter = new MockTabPresenter();
+      await tabPresenter.create("https://example.com/1", { active: false });
+      await tabPresenter.create("https://example.com/2", { active: true });
+      await tabPresenter.create("https://example.com/3", { active: false });
+      const sut = new DuplicateTabOperator(tabPresenter);
+
+      await sut.run();
+
+      const tabs = await tabPresenter.getAll();
+      expect(tabs.map((t) => t.url)).to.deep.equal([
+        "https://example.com/1",
+        "https://example.com/2",
+        "https://example.com/3",
+        "https://example.com/2",
+      ]);
+    });
+  });
+});