[GR-12115] Unsupported specialization from array().

PullRequest: graalpython/238

Author: ppisl

graalpython/com.oracle.graal.python.test/src/tests/test_array.py

@@ -61,6 +61,14 @@ def test_create():
     a = array('b', b'x' * 10)
     assert str(a) == "array('b', [120, 120, 120, 120, 120, 120, 120, 120, 120, 120])"
 
+def test_wrong_create():
+    from array import array
+    raised = False
+    try :
+        a = array([1,2,3])
+    except TypeError:
+        raised = True
+    assert raised
 
 def test_add():
     from array import array

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/ArrayModuleBuiltins.java

@@ -244,6 +244,11 @@ PArray arrayWithObjectInitializer(@SuppressWarnings("unused") PythonClass cls, @
             throw new RuntimeException("Unsupported initializer " + initializer);
         }
 
+        @Specialization(guards = "!isString(typeCode)")
+        PArray noArray(@SuppressWarnings("unused") PythonClass cls, Object typeCode, @SuppressWarnings("unused") Object initializer) {
+            throw raise(TypeError, "array() argument 1 must be a unicode character, not %p", typeCode);
+        }
+
         @TruffleBoundary
         private static long longValue(Number n) {
             return n.longValue();