diff --git a/plugins/ets/stdlib/std/core/String.ets b/plugins/ets/stdlib/std/core/String.ets
index 9e859cf70701e6e2c0b011fd4759d39b790d0acb..105d4c0b9ad93ef52b047d1a3f9d7094a859d12b 100644
--- a/plugins/ets/stdlib/std/core/String.ets
+++ b/plugins/ets/stdlib/std/core/String.ets
@@ -1514,7 +1514,7 @@ export final class String extends Object implements Comparable<String>, JSONable
             else {
                 let matchStr = result.get(0);
                 matches.pushBack(matchStr);
-                if (matchStr == "") {
+                if (matchStr.equals("")) {
                     regexp.lastIndex = RegExp.advanceStringIndex(this, regexp.lastIndex, regexp.unicode);
                 }
             }
diff --git a/plugins/ets/stdlib/std/core/Type.ets b/plugins/ets/stdlib/std/core/Type.ets
index a2339d2a107fbd6f592ec4d464f394333efc0159..a0ea6764d7218dbd8e5ba20eeaee89184a078c9f 100644
--- a/plugins/ets/stdlib/std/core/Type.ets
+++ b/plugins/ets/stdlib/std/core/Type.ets
@@ -960,7 +960,7 @@ export final class ClassType extends Type {
     }
 
     public override equals(to: NullishType): boolean {
-        return (to instanceof ClassType) && (to as ClassType).td == this.td
+        return (to instanceof ClassType) && (to as ClassType).td.equals(this.td)
     }
 
     public getBaseType(): ClassType {
@@ -1174,7 +1174,7 @@ export final class InterfaceType extends Type {
     }
 
     public override equals(to: NullishType): boolean {
-        return to instanceof InterfaceType && this.td == (to as InterfaceType).td
+        return to instanceof InterfaceType && this.td.equals((to as InterfaceType).td)
     }
 
     // `this` extends of `other` interface?
@@ -1615,7 +1615,7 @@ export final class EnumType extends Type {
             return false
         }
         let rt = other as EnumType
-        return this.getName() == rt.getName()
+        return this.getName().equals(rt.getName())
     }
 
     public override isPrimitive(): boolean {
diff --git a/plugins/ets/tests/ets_func_tests/escompat/JsonTest.ets b/plugins/ets/tests/ets_func_tests/escompat/JsonTest.ets
index 6602d2c5db86da35bfc2f469f2d6e0fb25eb9327..3f707dea366a2bb39677a34df144b0f05ba08ad7 100644
--- a/plugins/ets/tests/ets_func_tests/escompat/JsonTest.ets
+++ b/plugins/ets/tests/ets_func_tests/escompat/JsonTest.ets
@@ -44,8 +44,8 @@ function testDouble(): int {
 
 function testString(): int {
     let stringType = Type.of(new String() as Object)
-    return test(JSON.parse<Object>("\"Gracias\"", stringType) as String == "Gracias", "String(Gracias)") +
-        test(JSON.parse<Object>("\"\"", stringType) as String == "", "String()")
+    return test((JSON.parse<Object>("\"Gracias\"", stringType) as String).equals("Gracias"), "String(Gracias)") +
+        test((JSON.parse<Object>("\"\"", stringType) as String).equals(""), "String()")
 }
 
 function equalObjectArrays(a: Object[], b: Object[]): boolean {
@@ -53,7 +53,7 @@ function equalObjectArrays(a: Object[], b: Object[]): boolean {
         return false
     }
     for (let i = 0; i < a.length; i++) {
-        if (a[i] != b[i]) {
+        if (!a[i].equals(b[i])) {
             return false
         }
     }
@@ -86,7 +86,7 @@ function testArrayString(): int {
 
 function testObject(): int {
     let objectType = Type.of(new Object())
-    return test(JSON.stringify(JSON.parse<Object>("{}", objectType) as Object) == "{}", "Object")
+    return test(JSON.stringify(JSON.parse<Object>("{}", objectType) as Object).equals("{}"), "Object")
 }
 
 export class User {}
@@ -104,7 +104,7 @@ class SuperUser extends UserWithFields {
 function testStringifyParse(): int {
     let classType = Type.of(new SuperUser() as Object)
     let str = "{\"id\":10,\"g\":true,\"name\":\"Name\",\"users\":[{\"id\":12,\"g\":true,\"name\":\"Name1\"},{\"id\":13,\"g\":false,\"name\":\"Name2\"}]}";
-    return test(JSON.stringify(JSON.parse<SuperUser>(str, classType) as SuperUser) == str, "SuperUser")
+    return test(JSON.stringify(JSON.parse<SuperUser>(str, classType) as SuperUser).equals(str), "SuperUser")
 }
 
 class NoConstructor {
diff --git a/plugins/ets/tests/ets_func_tests/std/containers/ArrayAsListStringTest.ets b/plugins/ets/tests/ets_func_tests/std/containers/ArrayAsListStringTest.ets
index 81389ade2a7268a781ab6f5983abca915bbcc339..fab5e760c992aa6773495faa2303aae14a4838c8 100644
--- a/plugins/ets/tests/ets_func_tests/std/containers/ArrayAsListStringTest.ets
+++ b/plugins/ets/tests/ets_func_tests/std/containers/ArrayAsListStringTest.ets
@@ -79,7 +79,7 @@ function createWithGivenZeroSize(): int {
 function createWithGivenSize(): int {
     let list = new ArrayAsListString(10);
     for(let i: int = 0; i< 10; i++) {
-        if(list.at(i) != "") return 1;
+        if(!list.at(i).equals("")) return 1;
     }
     let result = list.size() == 10 ? 0 : 1;
     return result;    
@@ -89,7 +89,7 @@ function createWithGivenSizeAndValue0(): int {
     let value = "";
     let list = new ArrayAsListString(10, value);
     for(let i: int = 0; i< 10; i++) {
-        if(list.at(i) != value) return 1;
+        if(!list.at(i).equals(value)) return 1;
     }
     let result = list.size() == 10 ? 0 : 1;
     return result; 
@@ -99,7 +99,7 @@ function createWithGivenSizeAndValue1(): int {
     let value = "10";
     let list = new ArrayAsListString(10, value);
     for(let i: int; i< 10; i++) {
-        if(list.at(i) != value) return 1;
+        if(!list.at(i).equals(value)) return 1;
     }
     let result = list.size() == 10 ? 0 : 1;
     return result;
@@ -111,7 +111,7 @@ function pushFrontToEmptyList(): int {
     list.pushFront(value);
 
     let expected: String = list.at(0);
-    let result = (expected == value && list.size() == 1) ? 0 : 1;
+    let result = (expected.equals(value) && list.size() == 1) ? 0 : 1;
     return result;
 }
 
@@ -121,7 +121,7 @@ function pushBackToEmptyList(): int {
     list.pushBack(value);
 
     let expected: String = list.at(0);
-    let result = (expected == value && list.size() == 1) ? 0 : 1;
+    let result = (expected.equals(value) && list.size() == 1) ? 0 : 1;
     return result;
 }
 
@@ -131,7 +131,7 @@ function pushFrontToNonEmptyList(): int {
     list.pushFront(value);
 
     let expected: String = list.at(0);
-    let result = (expected == value && list.size() == 10) ? 0 : 1;
+    let result = (expected.equals(value) && list.size() == 10) ? 0 : 1;
     return result;    
 }
 
@@ -141,7 +141,7 @@ function pushBackToNonEmptyList(): int {
     list.pushBack(value);
 
     let expected: String = list.at(9);
-    let result = (expected == value && list.size() == 10) ? 0 : 1;
+    let result = (expected.equals(value) && list.size() == 10) ? 0 : 1;
     return result;
 }
 
@@ -154,7 +154,7 @@ function pushAndPopFrontFromNonEmptyList(): int {
     let expected = list.popFront();
     let head = list.at(0);
 
-    let result = (expected == value && head == init && list.size() == 10) ? 0 : 1;
+    let result = (expected.equals(value) && head.equals(init) && list.size() == 10) ? 0 : 1;
     return result;
 
 }
@@ -168,7 +168,7 @@ function pushAndPopBackFromNonEmptyList(): int {
     let expected = list.popBack();
     let tail = list.at(9);
 
-    let result = (expected == value && tail == init && list.size() == 10) ? 0 : 1;
+    let result = (expected.equals(value) && tail.equals(init) && list.size() == 10) ? 0 : 1;
     return result;
 
 }
@@ -198,7 +198,7 @@ function toArray(): int {
     }
 
     for(let i: int = 0; i< target.length; i++) {
-        if(target[i] == value) continue;
+        if(target[i].equals(value)) continue;
         console.println("Unexpected value in array");
         return 1;
     }
diff --git a/plugins/ets/tests/ets_func_tests/std/core/EscapeUnescapeTest.ets b/plugins/ets/tests/ets_func_tests/std/core/EscapeUnescapeTest.ets
index 8fdab92e2117334e35d45dd576f4a41c5aeb9644..b9e4df5ff6927bf7226d03b7d37c672cdcf3cde9 100644
--- a/plugins/ets/tests/ets_func_tests/std/core/EscapeUnescapeTest.ets
+++ b/plugins/ets/tests/ets_func_tests/std/core/EscapeUnescapeTest.ets
@@ -28,7 +28,7 @@ function main(): int {
     failures += testInverse("^")
     failures += testInverse("!@#$%^&*()-=_+1234567890%%%")
     failures += testInverse("äöü")
-    failures += test(unescape("%E4%F6%FC") == "äöü", "äöü failed, got " + unescape("%E4%F6%FC"))
+    failures += test(unescape("%E4%F6%FC").equals("äöü"), "äöü failed, got " + unescape("%E4%F6%FC"))
 
     failures += testInverse("🌈🌬️👩🏻‍🏭💅🏿")
 
@@ -46,7 +46,7 @@ function testEscapeId(s1: string): int {
 }
 
 function testEscapeId(s1: string, s2: string): int {
-    return test(escape(s1) == s2, 'escape("' + s1 + '") == "' + s2 + '" failed; got "' + escape(s1) + '"')
+    return test(escape(s1).equals(s2), 'escape("' + s1 + '") == "' + s2 + '" failed; got "' + escape(s1) + '"')
 }
 
 function testUnescapeId(s1: string): int {
@@ -54,11 +54,11 @@ function testUnescapeId(s1: string): int {
 }
 
 function testUnescapeId(s1: string, s2: string): int {
-    return test(unescape(s1) == s2, 'unescape("' + s1 + '") == "' + s2 + '" failed; got "' + unescape(s1) + '"')
+    return test(unescape(s1).equals(s2), 'unescape("' + s1 + '") == "' + s2 + '" failed; got "' + unescape(s1) + '"')
 }
 
 function testInverse(s1: string): int {
-    return test(unescape(escape(s1)) == s1, 'unescape(escape("' + s1 + '")) == "' + s1 + '" failed, got "' + unescape(escape(s1)) + '", escaped "' + escape(s1) + '"')
+    return test(unescape(escape(s1)).equals(s1), 'unescape(escape("' + s1 + '")) == "' + s1 + '" failed, got "' + unescape(escape(s1)) + '", escaped "' + escape(s1) + '"')
 }
 
 function test(result: boolean, msg: string): int {
diff --git a/plugins/ets/tests/ets_func_tests/std/core/EscapeUnescapeURITest.ets b/plugins/ets/tests/ets_func_tests/std/core/EscapeUnescapeURITest.ets
index 1ecb05f8e3e0834570b0d342bafdbce8a88725d1..9fe6da4ab3425b3c4adaaae019b99af8f4f74805 100644
--- a/plugins/ets/tests/ets_func_tests/std/core/EscapeUnescapeURITest.ets
+++ b/plugins/ets/tests/ets_func_tests/std/core/EscapeUnescapeURITest.ets
@@ -70,7 +70,7 @@ function main(): int {
 }
 
 function testEquals(s1: string, s2: string): int {
-    if (s1 == s2) {
+    if (s1.equals(s2)) {
         return 0
     }
     console.println('fail: "' + s1 + '"!= "' + s2 + '"')
@@ -87,7 +87,7 @@ function testInverse1(s1: string): int {
         a = decodeURI(encodeURI(s1))
         return 1
     }
-    if (a == s1) {
+    if (a.equals(s1)) {
         return 0
     }
     console.println('failed: decodeURI(encodeURI("' + s1 +'")) == "' + a + '" != "' + s1 + '"')
@@ -104,7 +104,7 @@ function testInverse2(s1: string): int {
         a = decodeURIComponent(encodeURIComponent(s1))
         return 1
     }
-    if (a == s1) {
+    if (a.equals(s1)) {
         return 0
     }
     console.println('failed: decodeURIComponent(encodeURIComponent("' + s1 +'")) == "' + a + '" != "' + s1 + '"')
diff --git a/plugins/ets/tests/ets_func_tests/std/core/GoodRadixTest.ets b/plugins/ets/tests/ets_func_tests/std/core/GoodRadixTest.ets
index eff58ea0675546fbb69e12935a908e18304e0dc2..3764a0853a5cf37f52d77e5a7ef4ca66ba5803d8 100644
--- a/plugins/ets/tests/ets_func_tests/std/core/GoodRadixTest.ets
+++ b/plugins/ets/tests/ets_func_tests/std/core/GoodRadixTest.ets
@@ -52,7 +52,7 @@ function checkGoodRadix(val: Double, radix: int, expected: String):int {
         return 1;
     }
     
-    if(sv == expected) return 0;
+    if(sv.equals(expected)) return 0;
 
     return 1;
 }
diff --git a/plugins/ets/tests/ets_func_tests/std/core/TypeCreateErasedBodyTest.ets b/plugins/ets/tests/ets_func_tests/std/core/TypeCreateErasedBodyTest.ets
index d107af344c226e01d990df2bae45716bc83af87a..8dc0d85d45612f26b2f09c9d0777865779f249d5 100644
--- a/plugins/ets/tests/ets_func_tests/std/core/TypeCreateErasedBodyTest.ets
+++ b/plugins/ets/tests/ets_func_tests/std/core/TypeCreateErasedBodyTest.ets
@@ -70,5 +70,5 @@ function main(): void throws {
 	const i = ty.make() as C
 	assert(i.c(10, 11, true) == 10)
 	assert(i.c(10, 11, false) == 11)
-	assert(i.m("abc") == "abc123DATA!")
+	assert(i.m("abc").equals("abc123DATA!"))
 }
diff --git a/plugins/ets/tests/ets_func_tests/std/core/TypeCreatePrimitiveNameTest.ets b/plugins/ets/tests/ets_func_tests/std/core/TypeCreatePrimitiveNameTest.ets
index a766bcbb03e0e8e75c66a4a1a5b1d19ecbc32a2a..eb1668bf91ff50de71daa9beb294ce0b47a2f7c8 100644
--- a/plugins/ets/tests/ets_func_tests/std/core/TypeCreatePrimitiveNameTest.ets
+++ b/plugins/ets/tests/ets_func_tests/std/core/TypeCreatePrimitiveNameTest.ets
@@ -18,7 +18,7 @@ interface I {
 }
 
 function foo(self: Object, x: int): int {
-	assert (Type.of(self) as ClassType).getName() == "i32"
+	assert (Type.of(self) as ClassType).getName().equals("i32")
 	return x + 11
 }
 
diff --git a/plugins/ets/tests/ets_func_tests/std/core/TypeResolve.ets b/plugins/ets/tests/ets_func_tests/std/core/TypeResolve.ets
index 1c974e8a66310c031b705da0c11abbbceb2a9bf7..1dcba06b26de5c283fae484c19cf1826fd05d5b1 100644
--- a/plugins/ets/tests/ets_func_tests/std/core/TypeResolve.ets
+++ b/plugins/ets/tests/ets_func_tests/std/core/TypeResolve.ets
@@ -36,7 +36,7 @@ function main() {
     let ok = false
     for (let i = 0; i < iType.getMethodsNum(); i++) {
         const m = iType.getMethod(i)
-        if (m.getName() == "meth") {
+        if (m.getName().equals("meth")) {
             assert m.getType().getResultType() instanceof IntType
             ok = true
             break
diff --git a/plugins/ets/tests/ets_test_suite/coroutines/multiple_launch.ets b/plugins/ets/tests/ets_test_suite/coroutines/multiple_launch.ets
index 364b4027be95efde08df6a969ac30e5aa9d0a3bc..644a0f9fd41b296c36e9e066bb8ac1c23c457546 100644
--- a/plugins/ets/tests/ets_test_suite/coroutines/multiple_launch.ets
+++ b/plugins/ets/tests/ets_test_suite/coroutines/multiple_launch.ets
@@ -24,7 +24,7 @@ function n_cor_launch(n_cor: int): int {
     }
     for (let i = 0; i < n_cor; ++i) {
         let val = await p[i];
-        if(val != return_value(i)) {
+        if(!val.equals(return_value(i))) {
             console.println("p[" + i + "] = \"" + val + "\" instead of \"" + return_value(i) + "\"");
             return 1;
         }
diff --git a/plugins/ets/tests/ets_test_suite/gc/weak_ref_test.ets b/plugins/ets/tests/ets_test_suite/gc/weak_ref_test.ets
index cbf9a68506a39a2066f2877c76003cf5c0077f7a..9a86d03ebb68c5f034712f2ecb673a4027aca335 100644
--- a/plugins/ets/tests/ets_test_suite/gc/weak_ref_test.ets
+++ b/plugins/ets/tests/ets_test_suite/gc/weak_ref_test.ets
@@ -32,6 +32,7 @@ function main(): int {
     let wrs = CreateWeakRefString();
     let reachable_obj = new Object();
     let wr_with_reachable = new WeakRef<Object>(reachable_obj);
+    assert reachable_obj.equals(wr_with_reachable.deref());
     // Run Full GC for referent collection
     try {
         let gc_id = GC.startGC(GC.FULL_CAUSE);
diff --git a/plugins/ets/tests/stdlib-templates/regression/12581_box_type_array.ets b/plugins/ets/tests/stdlib-templates/regression/12581_box_type_array.ets
index 170f6a7235c43a5fc8ffcb18d956d67beaf863de..0f6aa363314e41e19c709e6d7142e9d7cc9ce8ad 100644
--- a/plugins/ets/tests/stdlib-templates/regression/12581_box_type_array.ets
+++ b/plugins/ets/tests/stdlib-templates/regression/12581_box_type_array.ets
@@ -34,13 +34,15 @@ function test{{.item.box_type}}Wrapper() : int {
     let arrayProvider = new BoxTypeArrayProvider<{{.item.box_type}}>();
     let {{.item.box_type|lower}}Array = arrayProvider.getBoxObjectArray();
     let inputData : {{.item.box_type}}[] = {{.item.array_data}};
-    let expectedData : {{.item.box_type}}[] = {{.item.expected_data}};
+    let expectedData = new {{.item.box_type}}[ARRAY_SIZE];
     if ({{.item.box_type|lower}}Array.length != ARRAY_SIZE) return 1;
     for (let i  = 0; i< {{.item.box_type|lower}}Array.length; i++) {
         if ({{.item.box_type|lower}}Array[i] instanceof {{.item.box_type|capitalize}}) return 1;
     }
     for (let i = 0; i< inputData.length; i++) {
-        {{.item.box_type|lower}}Array[i] = new {{.item.box_type}}(inputData[i]);
+        let data = new {{.item.box_type}}(inputData[i])
+        {{.item.box_type|lower}}Array[i] = data;
+        expectedData[i] = data;
     }
     for (let i = 0; i< inputData.length; i++) {
         if ({{.item.box_type|lower}}Array[i] != expectedData[i]) return 1;
diff --git a/plugins/ets/tests/stdlib-templates/regression/list.bug_12581_box_type.yaml b/plugins/ets/tests/stdlib-templates/regression/list.bug_12581_box_type.yaml
index 54925a4257c9c207ed98e281712bcf887589bdcf..601203b17a1dc5a7ff93073952a8a2153270da7f 100644
--- a/plugins/ets/tests/stdlib-templates/regression/list.bug_12581_box_type.yaml
+++ b/plugins/ets/tests/stdlib-templates/regression/list.bug_12581_box_type.yaml
@@ -15,34 +15,29 @@
     box_type: Byte,
     box_type_desc: Byte_array,
     box_type_array_size: 5,
-    array_data: "[1,2,3,4,5]",
-    expected_data: "[1,2,3,4,5]",
+    array_data: "[1,2,3,4,5]"
   }
 - {
     box_type: Short,
     box_type_desc: Short_array,
     box_type_array_size: 5,
-    array_data: "[1,2,3,4,5]",
-    expected_data: "[1,2,3,4,5]",
+    array_data: "[1,2,3,4,5]"
   }
 - {
     box_type: Int,
     box_type_desc: Int_array,
     box_type_array_size: 5,
-    array_data: "[1,2,3,4,5]",
-    expected_data: "[1,2,3,4,5]",
+    array_data: "[1,2,3,4,5]"
   }
 - {
     box_type: Long,
     box_type_desc: Long_array,
     box_type_array_size: 5,
-    array_data: "[1,2,3,4,5]",
-    expected_data: "[1,2,3,4,5]",
+    array_data: "[1,2,3,4,5]"
   }
 - {
     box_type: Boolean,
     box_type_desc: Boolean_array,
     box_type_array_size: 5,
-    array_data: "[true,true,true,true,true]",
-    expected_data: "[true,true,true,true,true]",
+    array_data: "[true,true,true,true,true]"
   }
diff --git a/plugins/ets/tests/stdlib-templates/utils/test_check_test_array_result.j2 b/plugins/ets/tests/stdlib-templates/utils/test_check_test_array_result.j2
index dca12b4c230cb8caee8ba46441935b17549dd685..fbc639b02fe689c9aaeaa7597d48ec9254eae5f6 100644
--- a/plugins/ets/tests/stdlib-templates/utils/test_check_test_array_result.j2
+++ b/plugins/ets/tests/stdlib-templates/utils/test_check_test_array_result.j2
@@ -32,7 +32,11 @@ function checkTestResult(actual : {{.item.result_type}}, expected : {{.item.resu
   }
 {% else %}
 function checkTestResult(actual : {{.item.result_type}}, expected : {{.item.result_type}}) : int {
+   {% if item.result_type == "String" %}
+   if (actual.equals(expected)) return 0;
+   {% else %}
    if (actual == expected) return 0;
+   {% endif %}
    return 1;
 }  
 {% endif %}
diff --git a/plugins/ets/tests/stdlib-templates/utils/test_verifier_lib.j2 b/plugins/ets/tests/stdlib-templates/utils/test_verifier_lib.j2
index 498615353a3dcf5a1c8c660090f27e8bb7a32457..09e93894bdaa0205f50266cb55052d991f8eefbf 100644
--- a/plugins/ets/tests/stdlib-templates/utils/test_verifier_lib.j2
+++ b/plugins/ets/tests/stdlib-templates/utils/test_verifier_lib.j2
@@ -15,7 +15,7 @@
 
 {%- if item.method_return_type == "String" %}
 function compareStringTrivial(actual : String, expected : String) : boolean {
-  if (actual == expected) return true;
+  if (actual.equals(expected)) return true;
   return false;
 }
 {%- endif %}
@@ -30,10 +30,19 @@ function compareStringBuilderWithString(actual : StringBuilder, expected : Strin
 {%- if item.result_nature == "primitive" or item.method_return_type == "UTF_16_CodePoint" or item.method_return_type == "char" or item.method_return_type == "byte" or item.method_return_type == "short" or item.method_return_type == "int" or item.method_return_type == "long" or item.method_return_type == "boolean" %}
 {%- if item.method_return_type != "void" %}
 function comparePrimitiveValue(actual : {{.item.method_return_type}}, expected : {{.item.method_return_type}}) : boolean {
+  {%- if item.method_return_type == "String" %}
+  if (actual.equals(expected)) return true;
+  {% else %}
+  if (actual == expected) return true;
+  {% endif %}
 {%- else %}
 function comparePrimitiveValue(actual : {{.item.result_type}}, expected : {{.item.result_type}}) : boolean {
-{%- endif %}
+  {%- if item.result_type == "String" %}
+  if (actual.equals(expected)) return true;
+  {% else %}
   if (actual == expected) return true;
+  {% endif %}
+{%- endif %}
   return false;
 }
 {%- endif %}
@@ -94,7 +103,11 @@ function comparePrimitiveArray(actual :  {{.item.param_types[item.result_storage
 {%- endif %}
    if (actual.length != expected.length) return false;
    for (let i = 0; i < actual.length; i++) {
+     {%- if item.expected_test_data_item_type == "String[]" %}
+     if (!expected[i].equals(actual[i])) return false;
+     {% else %}
      if (actual[i] != expected[i]) return false;
+     {% endif %}
    }
 
    return true;
diff --git a/tests/tests-u-runner/runner/plugins/ets/ets-cts-ignored.txt b/tests/tests-u-runner/runner/plugins/ets/ets-cts-ignored.txt
index 63e4c0c49232734230940012901102777cc5a7f5..a9ae2559a2b695ea13f701b2a44bbc4a6709a653 100644
--- a/tests/tests-u-runner/runner/plugins/ets/ets-cts-ignored.txt
+++ b/tests/tests-u-runner/runner/plugins/ets/ets-cts-ignored.txt
@@ -1,3 +1,29 @@
+02.lexical_elements/09.literals/05.string_literals/codepoints.ets
+02.lexical_elements/09.literals/06.template_literals/spec_example_2.ets
+02.lexical_elements/09.literals/06.template_literals/templ_03.ets
+03.types/05.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_byte_0.ets
+03.types/05.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_byte_1.ets
+03.types/05.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_byte_2.ets
+03.types/05.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_byte_3.ets
+03.types/05.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_char_0.ets
+03.types/05.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_char_1.ets
+03.types/05.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_int_0.ets
+03.types/05.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_int_1.ets
+03.types/05.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_int_2.ets
+03.types/05.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_int_3.ets
+03.types/05.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_long_0.ets
+03.types/05.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_long_1.ets
+03.types/05.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_long_2.ets
+03.types/05.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_long_3.ets
+03.types/05.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_short_0.ets
+03.types/05.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_short_1.ets
+03.types/05.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_short_2.ets
+03.types/05.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_short_3.ets
+03.types/05.value_types/04.boolean_type_and_operations/string_concatenation_operator.ets
+03.types/06.reference_types/01.objects/string_concatenation_0.ets
+03.types/06.reference_types/01.objects/string_concatenation_1.ets
+03.types/06.reference_types/03.the_string_type/change_string_value.ets
+03.types/06.reference_types/03.the_string_type/strings_addition.ets
 03.types/01.predefined_types/class_types_declaration_2.ets
 03.types/01.predefined_types/class_value_types_declaration_4.ets
 03.types/01.predefined_types/class_value_types_declaration_5.ets
@@ -36,6 +62,7 @@
 04.names_declarations_and_scopes/06.type_alias_declaration/alias_gen_8.ets
 04.names_declarations_and_scopes/06.type_alias_declaration/alias_gen_9.ets
 04.names_declarations_and_scopes/07.variable_and_constant_declarations/03.type_compatibility_with_initializer/initializer_compatibility_8.ets
+04.names_declarations_and_scopes/08.function_declarations/function_decl2_1.ets
 05.generics/01.generic_declarations/generic_classes/generic_class_self_dependency_0.ets
 05.generics/01.generic_declarations/generic_classes/generic_class_self_dependency_1.ets
 05.generics/01.generic_declarations/generic_classes/generic_class_self_dependency_2.ets
@@ -230,6 +257,9 @@
 07.expressions/01.evaluation_of_expressions/02.normal_and_abrupt_completion_of_expression_evaluation/npe1.ets
 07.expressions/01.evaluation_of_expressions/02.normal_and_abrupt_completion_of_expression_evaluation/npe2.ets
 07.expressions/01.evaluation_of_expressions/02.normal_and_abrupt_completion_of_expression_evaluation/npe3.ets
+07.expressions/01.evaluation_of_expressions/04.operator_precedence/bool_cond.ets
+07.expressions/01.evaluation_of_expressions/04.operator_precedence/bool_tern.ets
+07.expressions/01.evaluation_of_expressions/eval_se.ets
 07.expressions/01.evaluation_of_expressions/eval_decl.ets
 07.expressions/03.qualified_name/qualified_name_0.ets
 07.expressions/03.qualified_name/qualified_name_1.ets
@@ -321,8 +351,59 @@
 07.expressions/22.relational_expressions/01.numerical_comparison_operators/float_comparison_69.ets
 07.expressions/22.relational_expressions/01.numerical_comparison_operators/float_comparison_70.ets
 07.expressions/22.relational_expressions/01.numerical_comparison_operators/float_comparison_71.ets
+07.expressions/24.equality_expressions/01.reference_equality_operators/operand_is_not_of_reference_type_3.ets
+07.expressions/24.equality_expressions/01.reference_equality_operators/reference_types_equality_operator_2.ets
+07.expressions/24.equality_expressions/01.reference_equality_operators/reference_types_equality_operator_3.ets
+07.expressions/24.equality_expressions/02.value_equality_operators/value_equality_operators_12.ets
+07.expressions/24.equality_expressions/04.value_equality_operators_for_boolean_types/boolean_equality_operator_16.ets
+07.expressions/24.equality_expressions/04.value_equality_operators_for_boolean_types/boolean_equality_operator_19.ets
+07.expressions/24.equality_expressions/04.value_equality_operators_for_boolean_types/boolean_equality_operator_20.ets
+07.expressions/24.equality_expressions/04.value_equality_operators_for_boolean_types/boolean_equality_operator_23.ets
+07.expressions/25.bitwise_and_logical_expressions/01.integer_bitwise_operators/integer_xor_4.ets
+07.expressions/28.assignment/01.simple_assignment_operator/ord1.ets
+07.expressions/28.assignment/01.simple_assignment_operator/ord2.ets
+07.expressions/28.assignment/01.simple_assignment_operator/ord21.ets
+07.expressions/28.assignment/01.simple_assignment_operator/ord22.ets
+07.expressions/28.assignment/01.simple_assignment_operator/ord23.ets
+07.expressions/28.assignment/01.simple_assignment_operator/ord24.ets
+07.expressions/28.assignment/01.simple_assignment_operator/ord25.ets
+07.expressions/28.assignment/01.simple_assignment_operator/ord26.ets
+07.expressions/28.assignment/01.simple_assignment_operator/ord3.ets
+07.expressions/28.assignment/01.simple_assignment_operator/ord5.ets
+07.expressions/28.assignment/01.simple_assignment_operator/ord6.ets
+07.expressions/28.assignment/02.compound_assignment_operators/ops_39.ets
+07.expressions/28.assignment/02.compound_assignment_operators/ops_40.ets
+07.expressions/28.assignment/02.compound_assignment_operators/ops_41.ets
+07.expressions/28.assignment/order.ets
+07.expressions/28.assignment/pos_3.ets
 07.expressions/27.conditional_or_expression/conditional_or_boolean.ets
 08.statements/04.local_declarations/local_class.ets
+08.statements/05.if_statements/if2_0.ets
+08.statements/05.if_statements/if2_1.ets
+08.statements/05.if_statements/if2_10.ets
+08.statements/05.if_statements/if2_11.ets
+08.statements/05.if_statements/if2_12.ets
+08.statements/05.if_statements/if2_2.ets
+08.statements/05.if_statements/if2_3.ets
+08.statements/05.if_statements/if2_5.ets
+08.statements/05.if_statements/if2_6.ets
+08.statements/05.if_statements/if2_7.ets
+08.statements/05.if_statements/if2_8.ets
+08.statements/05.if_statements/if2_9.ets
+08.statements/07.while_statements_and_do_statements/do_1.ets
+08.statements/07.while_statements_and_do_statements/while_1.ets
+08.statements/09.for_of_statements/for_of_10.ets
+08.statements/09.for_of_statements/for_of_11.ets
+08.statements/09.for_of_statements/for_of_12.ets
+08.statements/09.for_of_statements/for_of_13.ets
+08.statements/09.for_of_statements/for_of_14.ets
+08.statements/09.for_of_statements/for_of_15.ets
+08.statements/09.for_of_statements/for_of_4.ets
+08.statements/09.for_of_statements/for_of_5.ets
+08.statements/09.for_of_statements/for_of_6.ets
+08.statements/09.for_of_statements/for_of_7.ets
+08.statements/09.for_of_statements/for_of_8.ets
+08.statements/09.for_of_statements/for_of_9.ets
 09.classes/01.class_declaration/03.class_modifiers_inner_classes_and_static_classes/class_inner_class_declaration.ets
 09.classes/01.class_declaration/03.class_modifiers_inner_classes_and_static_classes/inner_class_inherit_static_member.ets
 09.classes/01.class_declaration/03.class_modifiers_inner_classes_and_static_classes/interface_inner_class_declaration.ets
@@ -1158,6 +1239,24 @@
 03.types/07.value_types/01.integer_types_and_operations/right_shift/right_shift_ushort_7.ets
 03.types/07.value_types/01.integer_types_and_operations/right_shift/right_shift_ushort_8.ets
 03.types/07.value_types/01.integer_types_and_operations/right_shift/right_shift_ushort_9.ets
+03.types/07.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_byte_0.ets
+03.types/07.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_byte_1.ets
+03.types/07.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_byte_2.ets
+03.types/07.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_byte_3.ets
+03.types/07.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_char_0.ets
+03.types/07.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_char_1.ets
+03.types/07.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_int_0.ets
+03.types/07.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_int_1.ets
+03.types/07.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_int_2.ets
+03.types/07.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_int_3.ets
+03.types/07.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_long_0.ets
+03.types/07.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_long_1.ets
+03.types/07.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_long_2.ets
+03.types/07.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_long_3.ets
+03.types/07.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_short_0.ets
+03.types/07.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_short_1.ets
+03.types/07.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_short_2.ets
+03.types/07.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_short_3.ets
 03.types/07.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_ubyte_0.ets
 03.types/07.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_ubyte_1.ets
 03.types/07.value_types/01.integer_types_and_operations/string_concatenation/string_concatenation_uint_0.ets
@@ -1321,6 +1420,8 @@
 03.types/07.value_types/01.integer_types_and_operations/unsigned_right_shift/unsigned_right_shift_ushort_7.ets
 03.types/07.value_types/01.integer_types_and_operations/unsigned_right_shift/unsigned_right_shift_ushort_8.ets
 03.types/07.value_types/01.integer_types_and_operations/unsigned_right_shift/unsigned_right_shift_ushort_9.ets
+03.types/07.value_types/04.boolean_type_and_operations/string_concatenation_operator.ets
+07.expressions/07.object_literal/01.object_literal_of_class_type/cl_0.ets
 07.expressions/07.object_literal/04.object_literal_evaluation/ex1.ets
 07.expressions/07.object_literal/04.object_literal_evaluation/ex2.ets
 07.expressions/28.assignment/01.simple_assignment_operator/ord4.ets
@@ -1688,6 +1789,10 @@
 02.lexical_elements/09.literals/03.bigint_literals/bigint_literals_1.ets
 02.lexical_elements/09.literals/03.bigint_literals/bigint_literals_2.ets
 02.lexical_elements/09.literals/03.bigint_literals/bigint_literals_3.ets
+03.types/08.reference_types/01.objects/string_concatenation_0.ets
+03.types/08.reference_types/01.objects/string_concatenation_1.ets
+03.types/08.reference_types/03.string_type/change_string_value.ets
+03.types/08.reference_types/03.string_type/strings_addition.ets
 03.types/08.reference_types/07.function_types/function_type_2.ets
 03.types/08.reference_types/07.function_types/function_type_3.ets
 03.types/08.reference_types/07.function_types/function_type_4.ets
@@ -1713,10 +1818,13 @@
 04.names_declarations_and_scopes/08.function_declarations/03.optional_parameters/opt_param_10.ets
 04.names_declarations_and_scopes/08.function_declarations/03.optional_parameters/opt_param_11.ets
 04.names_declarations_and_scopes/08.function_declarations/03.optional_parameters/opt_param_12.ets
+04.names_declarations_and_scopes/08.function_declarations/03.optional_parameters/opt_param_15.ets
 04.names_declarations_and_scopes/08.function_declarations/03.optional_parameters/opt_param_2.ets
 04.names_declarations_and_scopes/08.function_declarations/03.optional_parameters/opt_param_6.ets
 04.names_declarations_and_scopes/08.function_declarations/03.optional_parameters/opt_param_7.ets
 04.names_declarations_and_scopes/08.function_declarations/03.optional_parameters/opt_param_9.ets
+04.names_declarations_and_scopes/08.function_declarations/04.rest_parameter/rest_parameter_10.ets
+04.names_declarations_and_scopes/08.function_declarations/04.rest_parameter/rest_parameter_9.ets
 05.generics/05.parameterized_declarations/type_arguments_of_parameterized_declarations/class_args_22.ets
 05.generics/05.parameterized_declarations/type_arguments_of_parameterized_declarations/class_args_25.ets
 14.semantic_rules/03.override_equivalent_signatures/pos_6.ets