diff --git a/packages/binding-http/test/http-client-test.ts b/packages/binding-http/test/http-client-test.ts
index 8ca5bc718..e7ad419a0 100644
--- a/packages/binding-http/test/http-client-test.ts
+++ b/packages/binding-http/test/http-client-test.ts
@@ -104,16 +104,10 @@ class TestHttpServer implements ProtocolServer {
         }
     }
 
-    public expose(thing: unknown): Promise<void> {
-        return new Promise<void>((resolve, reject) => {
-            resolve();
-        });
-    }
+    public async expose(thing: unknown): Promise<void> {}
 
-    public destroy(thingId: string): Promise<boolean> {
-        return new Promise<boolean>((resolve, reject) => {
-            resolve(false);
-        });
+    public async destroy(thingId: string): Promise<boolean> {
+        return false;
     }
 
     public setTestVector(vector: TestVector) {
diff --git a/packages/binding-http/test/http-server-test.ts b/packages/binding-http/test/http-server-test.ts
index 586532dd9..9357d111b 100644
--- a/packages/binding-http/test/http-server-test.ts
+++ b/packages/binding-http/test/http-server-test.ts
@@ -163,10 +163,8 @@ class HttpServerTest {
             test = await value.value();
         });
 
-        testThing.setActionHandler("try", (input: WoT.InteractionOutput) => {
-            return new Promise<string>((resolve, reject) => {
-                resolve("TEST");
-            });
+        testThing.setActionHandler("try", async (input: WoT.InteractionOutput) => {
+            return "TEST";
         });
 
         await httpServer.expose(testThing);
@@ -276,11 +274,9 @@ class HttpServerTest {
             },
         });
         let test: DataSchemaValue;
-        testThing.setPropertyReadHandler("test", (options) => {
+        testThing.setPropertyReadHandler("test", async (options) => {
             expect(options?.uriVariables).to.deep.equal({ id: "testId" });
-            return new Promise<InteractionInput>((resolve, reject) => {
-                resolve(test);
-            });
+            return test;
         });
         testThing.setPropertyWriteHandler("test", async (value, options) => {
             expect(options?.uriVariables).to.deep.equal({ id: "testId" });
@@ -289,11 +285,9 @@ class HttpServerTest {
         // eslint-disable-next-line @typescript-eslint/ban-ts-comment
         // @ts-ignore
         testThing.properties.test.forms = [];
-        testThing.setActionHandler("try", (input: WoT.InteractionOutput, params?: InteractionOptions) => {
-            return new Promise<string>((resolve, reject) => {
-                expect(params?.uriVariables).to.deep.equal({ step: 5 });
-                resolve("TEST");
-            });
+        testThing.setActionHandler("try", async (input: WoT.InteractionOutput, params?: InteractionOptions) => {
+            expect(params?.uriVariables).to.deep.equal({ step: 5 });
+            return "TEST";
         });
         // eslint-disable-next-line @typescript-eslint/ban-ts-comment
         // @ts-ignore
@@ -339,10 +333,8 @@ class HttpServerTest {
         // eslint-disable-next-line @typescript-eslint/ban-ts-comment
         // @ts-ignore
         testThing.properties.test.forms = [];
-        testThing.setActionHandler("try", (input: WoT.InteractionOutput) => {
-            return new Promise<string>((resolve, reject) => {
-                resolve("TEST");
-            });
+        testThing.setActionHandler("try", async (input: WoT.InteractionOutput) => {
+            return "TEST";
         });
         // eslint-disable-next-line @typescript-eslint/ban-ts-comment
         // @ts-ignore
diff --git a/packages/core/test/ClientTest.ts b/packages/core/test/ClientTest.ts
index 0e95ac025..eaad86bcd 100644
--- a/packages/core/test/ClientTest.ts
+++ b/packages/core/test/ClientTest.ts
@@ -564,7 +564,7 @@ class WoTClientTest {
                 expect(value).to.equal(12);
                 resolve(true);
             });
-    })
+        });
     }
 
     @test async "observe property with formIndex"() {
diff --git a/packages/core/test/ServerTest.ts b/packages/core/test/ServerTest.ts
index b70a9b9b3..c728d90e7 100644
--- a/packages/core/test/ServerTest.ts
+++ b/packages/core/test/ServerTest.ts
@@ -43,15 +43,13 @@ chaiUse(spies);
 class TestProtocolServer implements ProtocolServer {
     public readonly scheme: string = "test";
 
-    async expose(thing: ExposedThing): Promise<void> {
-    }
+    async expose(thing: ExposedThing): Promise<void> {}
 
     async destroy(thingId: string): Promise<boolean> {
         return true;
     }
 
-    async start(): Promise<void> {
-    }
+    async start(): Promise<void> {}
 
     async stop(): Promise<void> {}