| /* Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.harmony.regex.tests.java.util.regex; |
| |
| import java.util.regex.Pattern; |
| import junit.framework.TestCase; |
| |
| /** |
| * Test boundary and error conditions in java.util.regex.Pattern |
| * |
| */ |
| public class PatternErrorTest extends TestCase { |
| public void testCompileErrors() throws Exception { |
| // null regex string - should get NullPointerException |
| try { |
| Pattern.compile(null); |
| fail("NullPointerException expected"); |
| } catch (NullPointerException e) { |
| } |
| |
| |
| // empty regex string - no exception should be thrown |
| Pattern.compile(""); |
| |
| // note: invalid regex syntax checked in PatternSyntaxExceptionTest |
| |
| // flags = 0 should raise no exception |
| int flags = 0; |
| Pattern.compile("foo", flags); |
| |
| // check that all valid flags accepted without exception |
| flags |= Pattern.UNIX_LINES; |
| flags |= Pattern.CASE_INSENSITIVE; |
| flags |= Pattern.MULTILINE; |
| // BEGIN android-changed |
| // We don't support that flag. |
| // flags |= Pattern.CANON_EQ; |
| // END android-changed |
| flags |= Pattern.COMMENTS; |
| flags |= Pattern.DOTALL; |
| flags |= Pattern.UNICODE_CASE; |
| Pattern.compile("foo", flags); |
| |
| // add invalid flags - should get IllegalArgumentException |
| /* |
| * TODO: Inconsistency between the reference JDK behaviour and spec - exception is |
| * not thrown |
| */ |
| /* |
| * Valid test is: |
| * flags |= 0xFFFFFFFF; |
| * try { |
| * Pattern.compile("foo",flags); |
| * } catch (IllegalArgumentException e) { |
| * // This is the expected exception |
| * } catch (Exception e) { |
| * fail(); |
| * } |
| */ |
| |
| /* Workaround test is: */ |
| // BEGIN android-changed |
| // We don't support that flag. |
| flags |= ~Pattern.CANON_EQ; |
| // END android-changed |
| // No exception expected to match incorrect the reference behaviour |
| Pattern.compile("foo", flags); |
| } |
| } |