stringcontains.java

不管是测试驱动开发或者是其它的开发模式

/*  Copyright (c) 2000-2004 jMock.org
 */
package org.jmock.core.constraint;

import org.jmock.core.Constraint;


/**
 * Tests if the argument is a string that contains a substring.
 */
public class StringContains implements Constraint
{
    private String substring;

    public StringContains( String substring ) {
        this.substring = substring;
    }

    public boolean eval( Object o ) {
        return o instanceof String && ((String)o).indexOf(substring) >= 0;
    }


    public StringBuffer describeTo( StringBuffer buffer ) {
        return buffer.append("a string containing \"")
                .append(substring)
                .append("\"");
    }
}