Discover frames on search by count of connections

When a tab switches pages quickly, a disconnect event on top frame is
sometime delivered after second connect event. In addition,
`tabs.onUpdated()` event is independent on port connection event.

Now the background script finds alive frames by only port connection.

2 files changed, 10 insertions, 7 deletions

diff --git a/test/background/mock/MockReadyFrameRepository.ts b/test/background/mock/MockReadyFrameRepository.ts
index a95b2e1..4a5ec52 100644
--- a/test/background/mock/MockReadyFrameRepository.ts
+++ b/test/background/mock/MockReadyFrameRepository.ts
@@ -1,10 +1,6 @@
 import ReadyFrameRepository from "../../../src/background/repositories/ReadyFrameRepository";
 
 export default class MockReadyFrameRepository implements ReadyFrameRepository {
-  clearFrameIds(_tabId: number): Promise<void> {
-    throw new Error("not implemented");
-  }
-
   addFrameId(_tabId: number, _fraemId: number): Promise<void> {
     throw new Error("not implemented");
   }
diff --git a/test/background/repositories/ReadyFrameRepository.test.ts b/test/background/repositories/ReadyFrameRepository.test.ts
index 888f3f5..71f20af 100644
--- a/test/background/repositories/ReadyFrameRepository.test.ts
+++ b/test/background/repositories/ReadyFrameRepository.test.ts
@@ -15,12 +15,19 @@ describe("background/repositories/ReadyFrameRepositoryImpl", () => {
     await sut.addFrameId(1, 12);
     await sut.addFrameId(1, 11);
     await sut.addFrameId(2, 20);
+    await sut.addFrameId(2, 21);
+    await sut.addFrameId(2, 21);
 
     expect(await sut.getFrameIds(1)).to.deep.equal([10, 11, 12]);
-    expect(await sut.getFrameIds(2)).to.deep.equal([20]);
+    expect(await sut.getFrameIds(2)).to.deep.equal([20, 21]);
 
-    await sut.clearFrameIds(1);
+    await sut.removeFrameId(2, 21);
+    expect(await sut.getFrameIds(2)).to.deep.equal([20, 21]);
 
-    expect(await sut.getFrameIds(1)).to.be.undefined;
+    await sut.removeFrameId(2, 21);
+    expect(await sut.getFrameIds(2)).to.deep.equal([20]);
+
+    await sut.removeFrameId(2, 20);
+    expect(await sut.getFrameIds(2)).to.be.undefined;
   });
 });