1 files changed, 179 insertions, 0 deletions
diff --git a/test/background/operators/impls/FindNextOperator.test.ts b/test/background/operators/impls/FindNextOperator.test.ts
new file mode 100644
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--- /dev/null
+++ b/test/background/operators/impls/FindNextOperator.test.ts
@@ -0,0 +1,179 @@
+import * as sinon from "sinon";
+import MockTabPresenter from "../../mock/MockTabPresenter";
+import FindNextOperator from "../../../../src/background/operators/impls/FindNextOperator";
+import MockFindRepository from "../../mock/MockFindRepository";
+import MockFindClient from "../../mock/MockFindClient";
+import MockConsoleClient from "../../mock/MockConsoleClient";
+import MockFramePresenter from "../../mock/MockFramePresenter";
+
+describe("FindNextOperator", () => {
+  const keyword = "hello";
+  const frameIds = [0, 100, 101];
+
+  const tabPresenter = new MockTabPresenter();
+  const findRepository = new MockFindRepository();
+  const findClient = new MockFindClient();
+  const consoleClient = new MockConsoleClient();
+  const framePresenter = new MockFramePresenter();
+  const sut = new FindNextOperator(
+    tabPresenter,
+    findRepository,
+    findClient,
+    consoleClient,
+    framePresenter
+  );
+
+  let currentTabId: number;
+
+  beforeEach(async () => {
+    sinon.restore();
+
+    const currentTab = await tabPresenter.create("https://example.com/", {
+      active: true,
+    });
+    currentTabId = currentTab.id!;
+  });
+
+  describe("#run", () => {
+    it("shows errors if no previous keywords", async () => {
+      sinon
+        .stub(findRepository, "getLocalState")
+        .returns(Promise.resolve(undefined));
+
+      const mock = sinon.mock(consoleClient);
+      mock
+        .expects("showError")
+        .withArgs(currentTabId, "No previous search keywords");
+
+      await sut.run();
+
+      mock.verify();
+    });
+
+    it("continues a search on the same frame", async () => {
+      sinon.stub(findRepository, "getLocalState").returns(
+        Promise.resolve({
+          keyword,
+          frameIds,
+          framePos: 1,
+        })
+      );
+
+      const mockFindClient = sinon.mock(findClient);
+      mockFindClient
+        .expects("findNext")
+        .withArgs(currentTabId, 100, keyword)
+        .returns(Promise.resolve(true));
+
+      const mockFindRepository = sinon.mock(findRepository);
+      mockFindRepository
+        .expects("setLocalState")
+        .withArgs(currentTabId, { keyword, frameIds, framePos: 1 });
+
+      await sut.run();
+
+      mockFindRepository.verify();
+      mockFindClient.verify();
+    });
+
+    it("continues a search on next frame", async () => {
+      sinon.stub(findRepository, "getLocalState").returns(
+        Promise.resolve({
+          keyword,
+          frameIds,
+          framePos: 1,
+        })
+      );
+
+      const mockFindClient = sinon.mock(findClient);
+      mockFindClient
+        .expects("findNext")
+        .withArgs(currentTabId, 100, keyword)
+        .returns(Promise.resolve(false));
+      mockFindClient
+        .expects("clearSelection")
+        .withArgs(currentTabId, 100)
+        .returns(Promise.resolve());
+      mockFindClient
+        .expects("findNext")
+        .withArgs(currentTabId, 101, keyword)
+        .returns(Promise.resolve(true));
+
+      const mockFindRepository = sinon.mock(findRepository);
+      mockFindRepository
+        .expects("setLocalState")
+        .withArgs(currentTabId, { keyword, frameIds, framePos: 2 });
+
+      await sut.run();
+
+      mockFindRepository.verify();
+      mockFindClient.verify();
+    });
+
+    it("exercise a wrap-search", async () => {
+      sinon.stub(findRepository, "getLocalState").returns(
+        Promise.resolve({
+          keyword,
+          frameIds,
+          framePos: 2,
+        })
+      );
+
+      const mockFindClient = sinon.mock(findClient);
+      mockFindClient
+        .expects("findNext")
+        .withArgs(currentTabId, 101, keyword)
+        .returns(Promise.resolve(false));
+      mockFindClient
+        .expects("clearSelection")
+        .withArgs(currentTabId, 101)
+        .returns(Promise.resolve());
+      mockFindClient
+        .expects("findNext")
+        .withArgs(currentTabId, 0, keyword)
+        .returns(Promise.resolve(true));
+
+      const mockFindRepository = sinon.mock(findRepository);
+      mockFindRepository
+        .expects("setLocalState")
+        .withArgs(currentTabId, { keyword, frameIds, framePos: 0 });
+
+      await sut.run();
+
+      mockFindRepository.verify();
+      mockFindClient.verify();
+    });
+
+    it("starts a search with last keywords", async () => {
+      sinon
+        .stub(findRepository, "getLocalState")
+        .returns(Promise.resolve(undefined));
+      sinon
+        .stub(findRepository, "getGlobalKeyword")
+        .returns(Promise.resolve(keyword));
+      sinon
+        .stub(framePresenter, "getAllFrameIds")
+        .returns(Promise.resolve(frameIds));
+      sinon.stub(consoleClient, "showInfo").returns(Promise.resolve());
+
+      const mockFindClient = sinon.mock(findClient);
+      mockFindClient.expects("clearSelection").withArgs(currentTabId, 0);
+      mockFindClient.expects("clearSelection").withArgs(currentTabId, 100);
+      mockFindClient.expects("clearSelection").withArgs(currentTabId, 101);
+      mockFindClient
+        .expects("findNext")
+        .withArgs(currentTabId, 0, keyword)
+        .returns(Promise.resolve(true));
+
+      const mockFindRepository = sinon.mock(findRepository);
+      mockFindRepository
+        .expects("setLocalState")
+        .withArgs(currentTabId, { keyword, frameIds, framePos: 0 });
+
+      await sut.run();
+
+      mockFindRepository.verify();
+      mockFindClient.verify();
+    });
+  });
+});