diff --git a/tests/integration/test_lang/test_primitives.py b/tests/integration/test_lang/test_primitives.py
index 076b308..01df9cf 100644
--- a/tests/integration/test_lang/test_primitives.py
+++ b/tests/integration/test_lang/test_primitives.py
@@ -360,3 +360,17 @@ def helper(left: {type_}, right: {type_}) -> {type_}:
 
     assert 32.125 == result.returned_value
     assert TYPE_MAP[type_] == type(result.returned_value)
+
+@pytest.mark.integration_test
+def test_call_invalid_type():
+    code_py = """
+def helper() -> i64:
+    return 19
+
+@exported
+def testEntry() -> i32:
+    return helper()
+"""
+
+    with pytest.raises(TypingError, match=r'i32.*i64'):
+        Suite(code_py).run_code()
diff --git a/tests/integration/test_lang/test_type_checks.py b/tests/integration/test_lang/test_type_checks.py
deleted file mode 100644
index 1389c2f..0000000
--- a/tests/integration/test_lang/test_type_checks.py
+++ /dev/null
@@ -1,31 +0,0 @@
-import pytest
-
-from phasm.parser import phasm_parse
-from phasm.typer import phasm_type
-from phasm.exceptions import TypingError
-
-@pytest.mark.integration_test
-def test_constant_too_wide():
-    code_py = """
-def func_const() -> u8:
-    return 0xFFF
-"""
-
-    ast = phasm_parse(code_py)
-    with pytest.raises(TypingError, match='Other min bitwidth exceeds max bitwidth'):
-        phasm_type(ast)
-
-@pytest.mark.integration_test
-@pytest.mark.parametrize('type_', [32, 64])
-def test_signed_mismatch(type_):
-    code_py = f"""
-def func_const() -> u{type_}:
-    return 0
-
-def func_call() -> i{type_}:
-    return func_const()
-"""
-
-    ast = phasm_parse(code_py)
-    with pytest.raises(TypingError, match='Signed does not match'):
-        phasm_type(ast)