diff --git a/src/logging/diagnostic-log-events.test.ts b/src/logging/diagnostic-log-events.test.ts
index d0e618747c7..cbfd62ade7a 100644
--- a/src/logging/diagnostic-log-events.test.ts
+++ b/src/logging/diagnostic-log-events.test.ts
@@ -50,18 +50,20 @@ describe("diagnostic log events", () => {
     unsubscribe();
 
     expect(received).toHaveLength(1);
-    expect(received[0]).toMatchObject({
-      type: "log.record",
-      level: "INFO",
-      message: "hello diagnostic logs",
-      attributes: {
-        subsystem: "diagnostic",
-        runId: "run-1",
-      },
-      trace: {
-        traceId: TRACE_ID,
-        spanId: SPAN_ID,
-      },
+    const [event] = received;
+    if (!event) {
+      throw new Error("missing diagnostic log event");
+    }
+    expect(event.type).toBe("log.record");
+    expect(event.level).toBe("INFO");
+    expect(event.message).toBe("hello diagnostic logs");
+    expect(event.attributes).toStrictEqual({
+      subsystem: "diagnostic",
+      runId: "run-1",
+    });
+    expect(event.trace).toStrictEqual({
+      traceId: TRACE_ID,
+      spanId: SPAN_ID,
     });
   });
 
@@ -121,17 +123,9 @@ describe("diagnostic log events", () => {
     expect(event.attributes?.token).not.toBe(secret);
     expect(String(event.attributes?.token)).toContain("…");
     expect(String(event.attributes?.longValue).length).toBeLessThanOrEqual(2100);
-    expect(event.attributes).toEqual(
-      expect.not.objectContaining({
-        nested: expect.anything(),
-        "bad key": expect.anything(),
-      }),
-    );
-    expect(event).toEqual(
-      expect.not.objectContaining({
-        argsJson: expect.anything(),
-      }),
-    );
+    expect(Object.hasOwn(event.attributes ?? {}, "nested")).toBe(false);
+    expect(Object.hasOwn(event.attributes ?? {}, "bad key")).toBe(false);
+    expect(Object.hasOwn(event, "argsJson")).toBe(false);
   });
 
   it("drops sensitive, blocked, and excess log attribute keys without copying large objects", async () => {
diff --git a/src/logging/level-filter.test.ts b/src/logging/level-filter.test.ts
index 5f5187ab860..540758d1220 100644
--- a/src/logging/level-filter.test.ts
+++ b/src/logging/level-filter.test.ts
@@ -124,10 +124,7 @@ describe("getChildLogger minLevel inheritance", () => {
 
     logging.toPinoLikeLogger(base, "info").child({ component: "test" });
 
-    expect(getSubLoggerSpy).toHaveBeenCalledWith(
-      expect.objectContaining({
-        minLevel: logging.levelToMinLevel("error"),
-      }),
-    );
+    expect(getSubLoggerSpy).toHaveBeenCalledOnce();
+    expect(getSubLoggerSpy.mock.calls[0]?.[0]?.minLevel).toBe(logging.levelToMinLevel("error"));
   });
 });
diff --git a/src/logging/logger-settings.test.ts b/src/logging/logger-settings.test.ts
index dddf56e169e..c32e94eb662 100644
--- a/src/logging/logger-settings.test.ts
+++ b/src/logging/logger-settings.test.ts
@@ -55,11 +55,9 @@ describe("getResolvedLoggerSettings", () => {
 
     const settings = logging.getResolvedLoggerSettings();
 
-    expect(settings).toMatchObject({
-      level: "debug",
-      file: "/tmp/openclaw-configured.log",
-      maxFileBytes: 2048,
-    });
+    expect(settings.level).toBe("debug");
+    expect(settings.file).toBe("/tmp/openclaw-configured.log");
+    expect(settings.maxFileBytes).toBe(2048);
   });
 
   it("uses defaults when no logging config is available", () => {
diff --git a/src/logging/parse-log-line.test.ts b/src/logging/parse-log-line.test.ts
index 4db1b4c31b7..79fb3dc4e89 100644
--- a/src/logging/parse-log-line.test.ts
+++ b/src/logging/parse-log-line.test.ts
@@ -15,13 +15,11 @@ describe("parseLogLine", () => {
 
     const parsed = parseLogLine(line);
 
-    expect(parsed).toMatchObject({
-      time: "2026-01-09T01:38:41.523Z",
-      level: "info",
-      subsystem: "gateway/channels/demo-channel",
-      message: '{"subsystem":"gateway/channels/demo-channel"} connected',
-      raw: line,
-    });
+    expect(parsed?.time).toBe("2026-01-09T01:38:41.523Z");
+    expect(parsed?.level).toBe("info");
+    expect(parsed?.subsystem).toBe("gateway/channels/demo-channel");
+    expect(parsed?.message).toBe('{"subsystem":"gateway/channels/demo-channel"} connected');
+    expect(parsed?.raw).toBe(line);
   });
 
   it("falls back to meta timestamp when top-level time is missing", () => {