| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package libcore.java.lang; |
| |
| import java.io.InputStream; |
| import java.lang.reflect.Array; |
| import java.util.EnumMap; |
| import java.util.EnumSet; |
| import junit.framework.TestCase; |
| |
| public final class ClassCastExceptionTest extends TestCase { |
| public void testClassCast() throws Exception { |
| Object o = new Exception(); |
| try { |
| String.class.cast(o); |
| fail(); |
| } catch (ClassCastException ex) { |
| assertEquals("Cannot cast java.lang.Exception to java.lang.String", ex.getMessage()); |
| } |
| } |
| |
| public void testClassAsSubclass() throws Exception { |
| try { |
| Exception.class.asSubclass(String.class); |
| fail(); |
| } catch (ClassCastException ex) { |
| assertEquals("class java.lang.Exception cannot be cast to java.lang.String", |
| ex.getMessage()); |
| } |
| } |
| |
| enum E { A, B, C }; |
| enum F { A, B, C }; |
| |
| public void testEnumMapPut() throws Exception { |
| EnumMap m = new EnumMap(E.class); |
| try { |
| m.put(F.A, "world"); |
| fail(); |
| } catch (ClassCastException ex) { |
| assertNotNull(ex.getMessage()); |
| } |
| } |
| |
| public void testMiniEnumSetAdd() throws Exception { |
| EnumSet m = EnumSet.noneOf(E.class); |
| try { |
| m.add(F.A); |
| fail(); |
| } catch (ClassCastException ex) { |
| assertNotNull(ex.getMessage()); |
| } |
| } |
| |
| public void testMiniEnumSetAddAll() throws Exception { |
| EnumSet m = EnumSet.noneOf(E.class); |
| EnumSet n = EnumSet.allOf(F.class); |
| try { |
| m.addAll(n); |
| fail(); |
| } catch (ClassCastException ex) { |
| assertNotNull(ex.getMessage()); |
| } |
| } |
| |
| enum HugeE { |
| A0, B0, C0, D0, E0, F0, G0, H0, I0, J0, K0, L0, M0, N0, O0, P0, Q0, R0, S0, T0, U0, V0, W0, X0, Y0, Z0, |
| A1, B1, C1, D1, E1, F1, G1, H1, I1, J1, K1, L1, M1, N1, O1, P1, Q1, R1, S1, T1, U1, V1, W1, X1, Y1, Z1, |
| A2, B2, C2, D2, E2, F2, G2, H2, I2, J2, K2, L2, M2, N2, O2, P2, Q2, R2, S2, T2, U2, V2, W2, X2, Y2, Z2, |
| }; |
| enum HugeF { |
| A0, B0, C0, D0, E0, F0, G0, H0, I0, J0, K0, L0, M0, N0, O0, P0, Q0, R0, S0, T0, U0, V0, W0, X0, Y0, Z0, |
| A1, B1, C1, D1, E1, F1, G1, H1, I1, J1, K1, L1, M1, N1, O1, P1, Q1, R1, S1, T1, U1, V1, W1, X1, Y1, Z1, |
| A2, B2, C2, D2, E2, F2, G2, H2, I2, J2, K2, L2, M2, N2, O2, P2, Q2, R2, S2, T2, U2, V2, W2, X2, Y2, Z2, |
| }; |
| |
| public void testHugeEnumSetAdd() throws Exception { |
| EnumSet m = EnumSet.noneOf(HugeE.class); |
| try { |
| m.add(HugeF.A0); |
| fail(); |
| } catch (ClassCastException ex) { |
| assertNotNull(ex.getMessage()); |
| } |
| } |
| |
| public void testHugeEnumSetAddAll() throws Exception { |
| EnumSet m = EnumSet.noneOf(HugeE.class); |
| EnumSet n = EnumSet.allOf(HugeF.class); |
| try { |
| m.addAll(n); |
| fail(); |
| } catch (ClassCastException ex) { |
| assertNotNull(ex.getMessage()); |
| } |
| } |
| } |