test: tighten pairing provider assertions

extensions/matrix/src/matrix/sdk.test.ts

@@ -3213,7 +3213,9 @@ describe("MatrixClient crypto bootstrapping", () => {
     expect(result.success).toBe(true);
     expect(result.verification.verified).toBe(true);
     expect(result.crossSigning.published).toBe(true);
-    expect(result.cryptoBootstrap).not.toBeNull();
+    if (!result.cryptoBootstrap) {
+      throw new Error("expected Matrix crypto bootstrap result");
+    }
   });
 
   it("reports bootstrap failure when the device is only locally trusted", async () => {

extensions/twitch/src/setup-surface.test.ts

@@ -200,8 +200,10 @@ describe("setup surface helpers", () => {
       );
 
       // Should return config with username and clientId
-      expect(result).not.toBeNull();
-      const defaultAccount = result?.cfg.channels?.twitch?.accounts?.default as
+      if (!result) {
+        throw new Error("expected Twitch env-token setup result");
+      }
+      const defaultAccount = result.cfg.channels?.twitch?.accounts?.default as
         | { username?: string; clientId?: string }
         | undefined;
       expect(defaultAccount?.username).toBe("testbot");

src/pairing/pairing-store.test.ts

@@ -83,7 +83,6 @@ function requireFirstPairingRequest(
 ) {
   expect(requests).toHaveLength(1);
   const [request] = requests;
-  expect(request).toBeDefined();
   if (!request) {
     throw new Error("expected pairing request");
   }