unicodeescapes1test.java

大名鼎鼎的java动态脚本语言。已经通过了sun的认证

package gls.ch03.s03;
import junit.framework.*;
import org.codehaus.groovy.tck.*;
public class UnicodeEscapes1Test extends TestCase {
    public void testPass() throws Throwable {
        StringBuffer srcBuffer = new StringBuffer();
        srcBuffer.append("package gls.ch03.s03").append(lineSep);
        srcBuffer.append("/**").append(lineSep);
        srcBuffer.append(" * GLS 3.3:").append(lineSep);
        srcBuffer.append(" * Implementations first recognize Unicode escapes in their input, translating ").append(lineSep);
        srcBuffer.append(" * the ASCII characters backslash and 'u' followed by four hexadecimal digits").append(lineSep);
        srcBuffer.append(" * to the Unicode character with the indicated hexadecimal value, and passing").append(lineSep);
        srcBuffer.append(" * all other characters unchanged.  ").append(lineSep);
        srcBuffer.append(" *").append(lineSep);
        srcBuffer.append(" * @author Alan Green").append(lineSep);
        srcBuffer.append(" * @author Jeremy Rayner").append(lineSep);
        srcBuffer.append(" */").append(lineSep);
        srcBuffer.append("").append(lineSep);
        srcBuffer.append("class UnicodeEscapes1 extends GroovyTestCase {").append(lineSep);
        srcBuffer.append("").append(lineSep);
        srcBuffer.append("    void testAllHexDigits() {").append(lineSep);
        srcBuffer.append("        // All hex digits work (char def0 is a special codepoint)").append(lineSep);
        srcBuffer.append("        def s = \"\\u1234\\u5678\\u9abc\\u0fed\\u9ABC\\u0FEC\"").append(lineSep);
        srcBuffer.append("        assert s.charAt(0) == 0x1234").append(lineSep);
        srcBuffer.append("        assert s.charAt(1) == 0x5678").append(lineSep);
        srcBuffer.append("        assert s.charAt(2) == 0x9abc").append(lineSep);
        srcBuffer.append("        assert s.charAt(3) == 0x0fed").append(lineSep);
        srcBuffer.append("        assert s.charAt(4) == 0x9abc").append(lineSep);
        srcBuffer.append("        assert s.charAt(5) == 0x0fec").append(lineSep);
        srcBuffer.append("    }").append(lineSep);
        srcBuffer.append("").append(lineSep);
        srcBuffer.append("    // There can be 1 or more u's after the backslash").append(lineSep);
        srcBuffer.append("    void testMultipleUs() {").append(lineSep);
        srcBuffer.append("        assert \"\\uu0061\" == \"a\"").append(lineSep);
        srcBuffer.append("        assert \"\\uuu0061\" == \"a\"").append(lineSep);
        srcBuffer.append("        assert \"\\uuuuu0061\" == \"a\"").append(lineSep);
        srcBuffer.append("    }").append(lineSep);
        srcBuffer.append("").append(lineSep);
        srcBuffer.append("    void testOtherVariations() {").append(lineSep);
        srcBuffer.append("        // Capital 'U' not allowed").append(lineSep);
        srcBuffer.append("        // assert \"\\U0061\" == \"a\" // @fail:parse ").append(lineSep);
        srcBuffer.append("    }").append(lineSep);
        srcBuffer.append("").append(lineSep);
        srcBuffer.append("    // todo: Implementations should use the \\ uxxxx notation as an output format to").append(lineSep);
        srcBuffer.append("    // display Unicode characters when a suitable font is not available.").append(lineSep);
        srcBuffer.append("    // (to be tested as part of the standard library)").append(lineSep);
        srcBuffer.append("").append(lineSep);
        srcBuffer.append("    // todo: Representing supplementary characters requires two consecutive Unicode").append(lineSep);
        srcBuffer.append("    // escapes. ").append(lineSep);
        srcBuffer.append("    // (not sure how to test)").append(lineSep);
        srcBuffer.append("    // see: gls.ch03.s01.Unicode2.testUTF16SupplementaryCharacters()").append(lineSep);
        srcBuffer.append("").append(lineSep);
        srcBuffer.append("    // todo: test unicode escapes last in file").append(lineSep);
        srcBuffer.append("    // and invalid escapes at end of file").append(lineSep);
        srcBuffer.append("}").append(lineSep);
        Object result = helper.evaluate(srcBuffer.toString(),"testPass");
        if (result instanceof TestResult) {
            TestResult testResult = (TestResult)result;
            if (testResult.errorCount() > 0) {
                TestFailure firstTestFailure = (TestFailure)testResult.errors().nextElement();
                throw firstTestFailure.thrownException();
            }
            if (testResult.failureCount() > 0) {
                AssertionFailedError firstFailure = (AssertionFailedError)(testResult.failures().nextElement());
                throw firstFailure;
            }
        }
    }
    public void testFailParse1() throws Throwable {
        StringBuffer srcBuffer = new StringBuffer();
        srcBuffer.append("package gls.ch03.s03").append(lineSep);
        srcBuffer.append("/**").append(lineSep);
        srcBuffer.append(" * GLS 3.3:").append(lineSep);
        srcBuffer.append(" * Implementations first recognize Unicode escapes in their input, translating ").append(lineSep);
        srcBuffer.append(" * the ASCII characters backslash and 'u' followed by four hexadecimal digits").append(lineSep);
        srcBuffer.append(" * to the Unicode character with the indicated hexadecimal value, and passing").append(lineSep);
        srcBuffer.append(" * all other characters unchanged.  ").append(lineSep);
        srcBuffer.append(" *").append(lineSep);
        srcBuffer.append(" * @author Alan Green").append(lineSep);
        srcBuffer.append(" * @author Jeremy Rayner").append(lineSep);
        srcBuffer.append(" */").append(lineSep);
        srcBuffer.append("").append(lineSep);
        srcBuffer.append("class UnicodeEscapes1 extends GroovyTestCase {").append(lineSep);
        srcBuffer.append("").append(lineSep);
        srcBuffer.append("    void testAllHexDigits() {").append(lineSep);
        srcBuffer.append("        // All hex digits work (char def0 is a special codepoint)").append(lineSep);
        srcBuffer.append("        def s = \"\\u1234\\u5678\\u9abc\\u0fed\\u9ABC\\u0FEC\"").append(lineSep);
        srcBuffer.append("        assert s.charAt(0) == 0x1234").append(lineSep);
        srcBuffer.append("        assert s.charAt(1) == 0x5678").append(lineSep);
        srcBuffer.append("        assert s.charAt(2) == 0x9abc").append(lineSep);
        srcBuffer.append("        assert s.charAt(3) == 0x0fed").append(lineSep);
        srcBuffer.append("        assert s.charAt(4) == 0x9abc").append(lineSep);
        srcBuffer.append("        assert s.charAt(5) == 0x0fec").append(lineSep);
        srcBuffer.append("    }").append(lineSep);
        srcBuffer.append("").append(lineSep);
        srcBuffer.append("    // There can be 1 or more u's after the backslash").append(lineSep);
        srcBuffer.append("    void testMultipleUs() {").append(lineSep);
        srcBuffer.append("        assert \"\\uu0061\" == \"a\"").append(lineSep);
        srcBuffer.append("        assert \"\\uuu0061\" == \"a\"").append(lineSep);
        srcBuffer.append("        assert \"\\uuuuu0061\" == \"a\"").append(lineSep);
        srcBuffer.append("    }").append(lineSep);
        srcBuffer.append("").append(lineSep);
        srcBuffer.append("    void testOtherVariations() {").append(lineSep);
        srcBuffer.append("        // Capital 'U' not allowed").append(lineSep);
        srcBuffer.append("           assert \"\\U0061\" == \"a\" // @fail:parse ").append(lineSep);
        srcBuffer.append("    }").append(lineSep);
        srcBuffer.append("").append(lineSep);
        srcBuffer.append("    // todo: Implementations should use the \\ uxxxx notation as an output format to").append(lineSep);
        srcBuffer.append("    // display Unicode characters when a suitable font is not available.").append(lineSep);
        srcBuffer.append("    // (to be tested as part of the standard library)").append(lineSep);
        srcBuffer.append("").append(lineSep);
        srcBuffer.append("    // todo: Representing supplementary characters requires two consecutive Unicode").append(lineSep);
        srcBuffer.append("    // escapes. ").append(lineSep);
        srcBuffer.append("    // (not sure how to test)").append(lineSep);
        srcBuffer.append("    // see: gls.ch03.s01.Unicode2.testUTF16SupplementaryCharacters()").append(lineSep);
        srcBuffer.append("").append(lineSep);
        srcBuffer.append("    // todo: test unicode escapes last in file").append(lineSep);
        srcBuffer.append("    // and invalid escapes at end of file").append(lineSep);
        srcBuffer.append("}").append(lineSep);
        try {
            helper.parse(srcBuffer.toString(),"testFailParse1");
            fail("This line did not fail to parse:  assert \"\\U0061\" == \"a\" // @fail:parse");
        } catch (Exception e) {
            // ignore an exception as that is what we're hoping for in this case.
        }
    }
    protected String lineSep = System.getProperty("line.separator");
    protected TestGeneratorHelper helper = new ClassicGroovyTestGeneratorHelper();
}