diff --git a/plugins/ets/tests/ets_func_tests/spec/lambdas/callArrayLengthFromLambda.ets b/plugins/ets/tests/ets_func_tests/spec/lambdas/callArrayLengthFromLambda.ets
new file mode 100644
index 0000000000000000000000000000000000000000..036cde1455f82a16d8127cfb564376eb12d3f674
--- /dev/null
+++ b/plugins/ets/tests/ets_func_tests/spec/lambdas/callArrayLengthFromLambda.ets
@@ -0,0 +1,17 @@
+/*---
+desc: 07.31 Lambda Expressions
+name: 07.expressions/31.lambda_expressions/callArrayLengthFromLambda
+tags: [compile-only]
+---*/
+
+function callArrayLengthFromLambda() {
+    const cb: (arg: number) => void = 
+        (arg: number) => {
+            let arr: number[] = [];
+            arr.length;
+        }
+}
+
+function main(): void {
+    callArrayLengthFromLambda();
+}
\ No newline at end of file
diff --git a/plugins/ets/tests/ets_func_tests/spec/lambdas/callAsyncMethodFromAsyncLambda1.ets b/plugins/ets/tests/ets_func_tests/spec/lambdas/callAsyncMethodFromAsyncLambda1.ets
new file mode 100644
index 0000000000000000000000000000000000000000..5f84ce6107ba3df4ad374329f16774d76f68225b
--- /dev/null
+++ b/plugins/ets/tests/ets_func_tests/spec/lambdas/callAsyncMethodFromAsyncLambda1.ets
@@ -0,0 +1,30 @@
+/*---
+desc: 07.31 Lambda Expressions
+name: 07.expressions/31.lambda_expressions/callAsyncMethodFromAsyncLambda1
+tags: []
+---*/
+
+type asyncLambda = () => Promise<void>
+
+class LambdaTests {
+    async asyncFunc(): Promise<boolean> {
+        return true;
+    }
+
+    testCallAsyncLambda(): void {
+        let call_async_lambda = false;
+
+        let async_lambda: asyncLambda = async (): Promise<void> => { 
+            await this.asyncFunc();
+            call_async_lambda = true;
+        }
+
+        assert(call_async_lambda == false);
+        await async_lambda();
+        assert(call_async_lambda == true);
+    }
+}
+
+function main(): void {
+    new LambdaTests().testCallAsyncLambda();
+}
\ No newline at end of file
diff --git a/plugins/ets/tests/ets_func_tests/spec/lambdas/callAsyncMethodFromAsyncLambda2.ets b/plugins/ets/tests/ets_func_tests/spec/lambdas/callAsyncMethodFromAsyncLambda2.ets
new file mode 100644
index 0000000000000000000000000000000000000000..6a5793cb82d48cf8e159e305569b28c576cd0f6e
--- /dev/null
+++ b/plugins/ets/tests/ets_func_tests/spec/lambdas/callAsyncMethodFromAsyncLambda2.ets
@@ -0,0 +1,28 @@
+/*---
+desc: 07.31 Lambda Expressions
+name: 07.expressions/31.lambda_expressions/callAsyncMethodFromAsyncLambda2
+tags: []
+---*/
+
+type asyncLambda = () => Promise<void>
+
+async function asyncFunc(): Promise<boolean> {
+    return true;
+}
+
+function testCallAsyncLambda(): void {
+    let call_async_lambda = false;
+
+    let async_lambda: asyncLambda = async (): Promise<void> => { 
+        await asyncFunc();
+        call_async_lambda = true;
+    }
+
+    assert(call_async_lambda == false);
+    await async_lambda();
+    assert(call_async_lambda == true);
+}
+
+function main(): void {
+    testCallAsyncLambda();
+}
\ No newline at end of file
diff --git a/plugins/ets/tests/ets_func_tests/spec/lambdas/callMethodFromAsyncLambda1.ets b/plugins/ets/tests/ets_func_tests/spec/lambdas/callMethodFromAsyncLambda1.ets
new file mode 100644
index 0000000000000000000000000000000000000000..68d4e3612fa0cf59067b27b650f950e4af248245
--- /dev/null
+++ b/plugins/ets/tests/ets_func_tests/spec/lambdas/callMethodFromAsyncLambda1.ets
@@ -0,0 +1,29 @@
+/*---
+desc: 07.31 Lambda Expressions
+name: 07.expressions/31.lambda_expressions/callMethodFromAsyncLambda1
+tags: []
+---*/
+
+type asyncLambda = () => Promise<void>
+
+class LambdaTests {
+    regularFunc(): boolean {
+        return true;
+    }
+
+    testCallFromAsyncLambdaRegularFunc(): void {
+        let is_call_async_lambda = false;
+
+        let async_lambda: asyncLambda = async (): Promise<void> => { 
+            is_call_async_lambda = this.regularFunc();
+        }
+
+        assert(is_call_async_lambda == false);
+        await async_lambda();
+        assert(is_call_async_lambda == true);
+    }
+}
+
+function main(): void {
+    new LambdaTests().testCallFromAsyncLambdaRegularFunc();
+}
\ No newline at end of file
diff --git a/plugins/ets/tests/ets_func_tests/spec/lambdas/callMethodFromAsyncLambda2.ets b/plugins/ets/tests/ets_func_tests/spec/lambdas/callMethodFromAsyncLambda2.ets
new file mode 100644
index 0000000000000000000000000000000000000000..c9a5b13e9b944ac1c555d6d423e5971f4f29d522
--- /dev/null
+++ b/plugins/ets/tests/ets_func_tests/spec/lambdas/callMethodFromAsyncLambda2.ets
@@ -0,0 +1,25 @@
+/*---
+desc: 07.31 Lambda Expressions
+name: 07.expressions/31.lambda_expressions/callMethodFromAsyncLambda2
+tags: []
+---*/
+
+type asyncLambda = () => Promise<void>
+
+function regularFunc(): boolean {
+    return true;
+}
+
+function testCallFromAsyncLambdaRegularFunc(): void {
+    let is_call_async_lambda = false;
+    let async_lambda: asyncLambda = async (): Promise<void> => { 
+        is_call_async_lambda = regularFunc();
+    }
+    assert(is_call_async_lambda == false);
+    await async_lambda();
+    assert(is_call_async_lambda == true);
+}
+
+function main(): void {
+    testCallFromAsyncLambdaRegularFunc();
+}
\ No newline at end of file
diff --git a/plugins/ets/tests/ets_func_tests/spec/lambdas/callRegularLambda.ets b/plugins/ets/tests/ets_func_tests/spec/lambdas/callRegularLambda.ets
new file mode 100644
index 0000000000000000000000000000000000000000..6dea3dda6451086e766bcffca165e44070e05efd
--- /dev/null
+++ b/plugins/ets/tests/ets_func_tests/spec/lambdas/callRegularLambda.ets
@@ -0,0 +1,30 @@
+/*---
+desc: 07.31 Lambda Expressions
+name: 07.expressions/31.lambda_expressions/callRegularLambda
+tags: []
+---*/
+
+type regularLambda = () => void
+
+class Test {
+    regularFunc(): boolean {
+        return true;
+    }
+
+    testCallRegularLambda(): void {
+        let is_call_regular_lambda: boolean = false;
+
+        let regular_lambda: regularLambda = (): void => { 
+            this.regularFunc();
+            is_call_regular_lambda = true;
+        }
+
+        assert(is_call_regular_lambda == false);
+        regular_lambda();
+        assert(is_call_regular_lambda == true);
+    }
+}
+
+function main(): void {
+    new Test().testCallRegularLambda();
+}
diff --git a/plugins/ets/tests/ets_func_tests/spec/lambdas/callRegularLambdaWithAsyncOverload.ets b/plugins/ets/tests/ets_func_tests/spec/lambdas/callRegularLambdaWithAsyncOverload.ets
new file mode 100644
index 0000000000000000000000000000000000000000..96ab85ae255dcc6926bdc3c2a4d3a2aa3b2a17ae
--- /dev/null
+++ b/plugins/ets/tests/ets_func_tests/spec/lambdas/callRegularLambdaWithAsyncOverload.ets
@@ -0,0 +1,27 @@
+/*---
+desc: 07.31 Lambda Expressions
+name: 07.expressions/31.lambda_expressions/callRegularLambdaWithAsyncOverload
+tags: []
+---*/
+
+class Test {
+    regularFunc(): boolean {
+        return true;
+    }
+
+    async regularFunc(param: () => boolean): Promise<boolean> {
+        return param();
+    }
+
+    callOverloadRegularFunc(): void {
+        let is_call_regular_func1 = await this.regularFunc((): boolean => { return true });
+        assert(is_call_regular_func1 == true);
+
+        let is_call_regular_func2 = await this.regularFunc((): boolean => { return false });
+        assert(is_call_regular_func2 == false);
+    }
+}
+
+function main(): void {
+    new Test().callOverloadRegularFunc();
+}
diff --git a/plugins/ets/tests/ets_func_tests/spec/lambdas/compareBooleanWithTrue.ets b/plugins/ets/tests/ets_func_tests/spec/lambdas/compareBooleanWithTrue.ets
new file mode 100644
index 0000000000000000000000000000000000000000..1e92b8f446b7f6066b2a68f1405d69c538705836
--- /dev/null
+++ b/plugins/ets/tests/ets_func_tests/spec/lambdas/compareBooleanWithTrue.ets
@@ -0,0 +1,23 @@
+/*---
+desc: 07.31 Lambda Expressions
+name: 07.expressions/31.lambda_expressions/compareBooleanWithTrue
+tags: []
+---*/
+
+type asyncLambda = () => Promise<boolean>
+
+function regularFunc(): boolean {
+    return true;
+}
+
+function main(): void {
+    let booleanPromise: asyncLambda = async (): Promise<boolean> => {
+        return Promise.resolve<boolean>(regularFunc());
+    }
+
+    let is_resolution1: Boolean = new Boolean(true);
+    assert(is_resolution1 == true);
+
+    let is_resolution2: Boolean = booleanPromise().awaitResolution();
+    assert(is_resolution2 == true);
+}
\ No newline at end of file
diff --git a/plugins/ets/tests/ets_func_tests/spec/lambdas/incorrectAsyncLambdaReturnValue.ets b/plugins/ets/tests/ets_func_tests/spec/lambdas/incorrectAsyncLambdaReturnValue.ets
new file mode 100644
index 0000000000000000000000000000000000000000..96cb893017d5e8a1b620a8b38d378c83f0081e29
--- /dev/null
+++ b/plugins/ets/tests/ets_func_tests/spec/lambdas/incorrectAsyncLambdaReturnValue.ets
@@ -0,0 +1,11 @@
+/*---
+desc: 07.31 Lambda Expressions
+name: 07.expressions/31.lambda_expressions/incorrectAsyncLambdaReturnValue
+tags: [negative, compile-only]
+---*/
+
+type fooLambda = () => void
+
+function main(): void {
+    let x: fooLambda = async (): void => {}
+}
\ No newline at end of file
diff --git a/plugins/ets/tests/ets_func_tests/spec/lambdas/incorrectVariableDeclaration.ets b/plugins/ets/tests/ets_func_tests/spec/lambdas/incorrectVariableDeclaration.ets
new file mode 100644
index 0000000000000000000000000000000000000000..f6fa058af591831c88a4b0c36df10c839d8e61ef
--- /dev/null
+++ b/plugins/ets/tests/ets_func_tests/spec/lambdas/incorrectVariableDeclaration.ets
@@ -0,0 +1,13 @@
+/*---
+desc: 07.31 Lambda Expressions
+name: 07.expressions/31.lambda_expressions/incorrectVariableDeclaration
+tags: [negative, compile-only]
+---*/
+
+type fooLambda = () => int
+
+function foo() {
+    let y: int = 1;
+    let x = () => { return y+1 }; // must be - let x: fooLambda = () => { return y+1 };
+    console.log(x());
+}
diff --git a/plugins/ets/tests/ets_func_tests/spec/lambdas/resultFromAwait.ets b/plugins/ets/tests/ets_func_tests/spec/lambdas/resultFromAwait.ets
new file mode 100644
index 0000000000000000000000000000000000000000..b0e25eeeaa7b5930763cd1fbc82f5e2f5e6fe32e
--- /dev/null
+++ b/plugins/ets/tests/ets_func_tests/spec/lambdas/resultFromAwait.ets
@@ -0,0 +1,24 @@
+/*---
+desc: 07.31 Lambda Expressions
+name: 07.expressions/31.lambda_expressions/resultFromAwait
+tags: []
+---*/
+
+type asyncLambda = () => Promise<boolean>
+
+function regularFunc(): boolean {
+    return true;
+}
+
+function main(): void {
+    let booleanPromise: asyncLambda = async (): Promise<boolean> => {
+        return Promise.resolve<boolean>(regularFunc());
+    }
+
+    let is_true: Boolean = new Boolean(true);
+
+    let is_resolution2: Boolean = await booleanPromise();
+
+    assert is_resolution2 instanceof Boolean;
+    assert(is_resolution2 == is_true);
+}
\ No newline at end of file
diff --git a/plugins/ets/tests/ets_func_tests/spec/lambdas/resultFromAwaitResolution.ets b/plugins/ets/tests/ets_func_tests/spec/lambdas/resultFromAwaitResolution.ets
new file mode 100644
index 0000000000000000000000000000000000000000..0aad7caa7b95896d7d1ab447f64159038ac3c1ab
--- /dev/null
+++ b/plugins/ets/tests/ets_func_tests/spec/lambdas/resultFromAwaitResolution.ets
@@ -0,0 +1,24 @@
+/*---
+desc: 07.31 Lambda Expressions
+name: 07.expressions/31.lambda_expressions/resultFromAwaitResolution
+tags: []
+---*/
+
+type asyncLambda = () => Promise<boolean>
+
+function regularFunc(): boolean {
+    return true;
+}
+
+function main(): void {
+    let booleanPromise: asyncLambda = async (): Promise<boolean> => {
+        return Promise.resolve<boolean>(regularFunc());
+    }
+
+    let is_true: Boolean = new Boolean(true);
+
+    let is_resolution1: Boolean = booleanPromise().awaitResolution();
+
+    assert is_resolution1 instanceof Boolean;
+    assert(is_resolution1 == is_true);
+}
\ No newline at end of file
diff --git a/tests/tests-u-runner/runner/plugins/ets/ets-func-tests-ignored.txt b/tests/tests-u-runner/runner/plugins/ets/ets-func-tests-ignored.txt
index af134d128891ddef447c45f4d18dfb02da1e910d..d9117410f1010e9d3d57f560e4488160394a12f3 100644
--- a/tests/tests-u-runner/runner/plugins/ets/ets-func-tests-ignored.txt
+++ b/tests/tests-u-runner/runner/plugins/ets/ets-func-tests-ignored.txt
@@ -107,3 +107,26 @@ escompat/escompat_Array_Test_escompat_Array_003.ets
 std/containers/BasicMapTest.ets
 std/containers/BasicSetTest.ets
 ### Issue xxx end
+
+### lambda issues begin
+### Issue 14018
+spec/lambdas/callArrayLengthFromLambda.ets
+
+### Issue 14054
+spec/lambdas/callAsyncMethodFromAsyncLambda1.ets
+spec/lambdas/callMethodFromAsyncLambda1.ets
+
+### Issue 14209
+spec/lambdas/callAsyncMethodFromAsyncLambda2.ets
+spec/lambdas/callMethodFromAsyncLambda2.ets
+
+### Issue 14131
+spec/lambdas/callRegularLambdaWithAsyncOverload.ets
+
+### Issue 14234
+spec/lambdas/resultFromAwait.ets
+spec/lambdas/resultFromAwaitResolution.ets
+
+### Issue 14235
+spec/lambdas/compareBooleanWithTrue.ets
+### lambda issues end