diff --git a/tests/jerry-test-suite/12/12.02/12.02.01/12.02.01-001.js b/tests/jerry-test-suite/12/12.02/12.02.01/12.02.01-001.js
index 3f129e338..77773ffc5 100644
--- a/tests/jerry-test-suite/12/12.02/12.02.01/12.02.01-001.js
+++ b/tests/jerry-test-suite/12/12.02/12.02.01/12.02.01-001.js
@@ -12,22 +12,5 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-/*
-<test file="12.02.01-001.js">
-    <author>s.ryabkova</author>
-    <checks>
-        Check that in non strict mode variable with name "eval" could be created
-    </checks>
-    <keywords>
-        var, eval, if
-    </keywords>
-</test>
-*/
-function main()
-{
-    var eval = 1
-    if (eval === 1 && typeof(eval) === "number")
-        return 1;
-    else
-        return 0;
-}
+var eval = 1;
+assert(eval === 1 && typeof (eval) === "number");
diff --git a/tests/jerry-test-suite/12/12.02/12.02.01/12.02.01-002.js b/tests/jerry-test-suite/12/12.02/12.02.01/12.02.01-002.js
index caee256a1..af3929d71 100644
--- a/tests/jerry-test-suite/12/12.02/12.02.01/12.02.01-002.js
+++ b/tests/jerry-test-suite/12/12.02/12.02.01/12.02.01-002.js
@@ -12,23 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-/*
-<test file="12.02.01-003.js">
-    <author>s.ryabkova</author>
-    <checks>
-        Check that in non strict mode variable with name "arguments"
-	could be created
-    </checks>
-    <keywords>
-        var, arguments, if
-    </keywords>
-</test>
-*/
-function main()
-{
-    var arguments=2;
-    if (arguments === 2 && typeof(arguments) === "number")
-        return 1;
-    else
-        return 0;
-}
+var arguments = 2;
+assert(arguments === 2 && typeof (arguments) === "number");
+
diff --git a/tests/jerry-test-suite/15/15.07/15.07.01/15.07.01-001.js b/tests/jerry-test-suite/15/15.07/15.07.01/15.07.01-001.js
index a73baba2e..0b059c1b2 100644
--- a/tests/jerry-test-suite/15/15.07/15.07.01/15.07.01-001.js
+++ b/tests/jerry-test-suite/15/15.07/15.07.01/15.07.01-001.js
@@ -12,18 +12,4 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-/*
-<test file="15.07.01-001.js">
-    <author>s.ryabkova</author>
-    <checks>
-        Check Number Constructor called as a function performs a type conversion and returns a number value (not a Number Object) computed by ToNumber() function
-    </checks>
-    <keywords>
-        built-in, Number
-    </keywords>
-</test>
-*/
-function main()
-{
-  return (Number("123456") === 123456)
-}
+assert(Number("123456") === 123456);