/*
 * 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.struts2.validator;

import org.apache.struts2.ActionContext;
import org.apache.struts2.ActionSupport;
import org.apache.struts2.text.TextProviderFactory;
import org.apache.struts2.XWorkTestCase;
import org.apache.struts2.util.ValueStack;
import org.apache.struts2.validator.validators.StringLengthFieldValidator;
import org.apache.struts2.interceptor.parameter.StrutsParameter;

import java.util.Arrays;
import java.util.Collection;

/**
 * @author tm_jee
 * @version $Date$ $Id$
 */
public class StringLengthFieldValidatorTest extends XWorkTestCase {

    protected InternalActionSupport action;
    protected StringLengthFieldValidator validator;

    public void testStringLengthEmptyNoTrim1() throws Exception {
        action.setMyField("");

        validator.setTrim(false);
        validator.validate(action);

        assertEquals(action.getMyField(), "");
        assertFalse(action.hasFieldErrors());
    }

    public void testStringLengthNullNoTrim() throws Exception {
        action.setMyField(null);

        validator.setTrim(false);
        validator.validate(action);

        assertEquals(action.getMyField(), null);
        assertFalse(action.hasFieldErrors());
    }

    public void testStringLengthEmptyTrim1() throws Exception {
        action.setMyField("   ");

        validator.setTrim(true);
        validator.validate(action);

        assertEquals(action.getMyField(), "   ");
        assertFalse(action.hasFieldErrors());
    }

    public void testStringLengthEmptyNoTrim2() throws Exception {
        action.setMyField("          ");

        validator.setTrim(false);
        validator.validate(action);

        assertEquals(action.getMyField(), "          ");
        assertTrue(action.hasFieldErrors());
    }


    public void testStringLengthNullTrim() throws Exception {
        action.setMyField(null);

        validator.setTrim(true);
        validator.validate(action);

        assertEquals(action.getMyField(), null);
        assertFalse(action.hasFieldErrors());
    }

    public void testInvalidStringLengthNoTrim() throws Exception {
        action.setMyField("abcdefghijklmn");

        validator.setTrim(false);
        validator.validate(action);

        assertEquals(action.getMyField(), "abcdefghijklmn");
        assertTrue(action.hasFieldErrors());
    }

    public void testInvalidStringLengthTrim() throws Exception {
        action.setMyField("abcdefghijklmn   ");

        validator.setTrim(true);
        validator.validate(action);

        assertEquals(action.getMyField(), "abcdefghijklmn   ");
        assertTrue(action.hasFieldErrors());
    }

    public void testValidStringLengthNoTrim() throws Exception {
        action.setMyField("   ");

        validator.setTrim(false);
        validator.validate(action);

        assertEquals(action.getMyField(), "   ");
        assertFalse(action.hasFieldErrors());
    }

    public void testValidStringLengthTrim() throws Exception {
        action.setMyField("asd          ");

        validator.setTrim(true);
        validator.validate(action);

        assertEquals(action.getMyField(), "asd          ");
        assertFalse(action.hasFieldErrors());
    }

    public void testArrayOfStringsLengthTrim() throws Exception {
        action.setStrings(new String[]{"123456", "    ", null});

        validator.setFieldName("strings");
        validator.setTrim(true);
        validator.validate(action);

        assertTrue(action.hasFieldErrors());
        assertEquals(1, action.getFieldErrors().get("strings").size());
    }

    public void testCollectionOfStringsLengthTrim() throws Exception {
        action.setStringCollection(Arrays.asList("123456", "    ", null));

        validator.setFieldName("stringCollection");
        validator.setTrim(true);
        validator.validate(action);

        assertTrue(action.hasFieldErrors());
        assertEquals(1, action.getFieldErrors().get("stringCollection").size());
    }

    public void testMinLengthViaExpression() throws Exception {
        assertEquals(2, validator.getMinLength());
        action.setMinLengthValue(10);

        validator.setMinLengthExpression("${minLengthValue}");

        assertEquals(10, validator.getMinLength());
    }

    public void testMaxLengthViaExpression() throws Exception {
        assertEquals(5, validator.getMaxLength());
        action.setMaxLengthValue(100);

        validator.setMaxLengthExpression("${maxLengthValue}");

        assertEquals(100, validator.getMaxLength());
    }

    public void testTrimViaExpression() throws Exception {
        assertTrue(validator.isTrim());
        action.setTrimValue(false);

        validator.setTrimExpression("${trimValue}");

        assertFalse(validator.isTrim());
    }

    @Override
    protected void setUp() throws Exception {
        super.setUp();

        action = new InternalActionSupport();
        container.inject(action);

        ValueStack valueStack = ActionContext.getContext().getValueStack();
        valueStack.push(action);

        validator = new StringLengthFieldValidator();
        validator.setFieldName("myField");
        validator.setMessageKey("error");
        validator.setValidatorContext(new DelegatingValidatorContext(action, container.getInstance(TextProviderFactory.class)));
        validator.setMaxLength(5);
        validator.setMinLength(2);
        validator.setValueStack(valueStack);
    }


    @Override
    protected void tearDown() throws Exception {
        super.tearDown();
        action = null;
        validator = null;
    }

    public static class InternalActionSupport extends ActionSupport {

        private static final long serialVersionUID = 1L;

        private String myField;
        private boolean trimValue;
        private int minLengthValue;
        private int maxLengthValue;

        private String[] strings;
        private Collection<String> stringCollection;

        public String getMyField() {
            return this.myField;
        }

        @StrutsParameter
        public void setMyField(String myField) {
            this.myField = myField;
        }

        public boolean isTrimValue() {
            return trimValue;
        }

        @StrutsParameter
        public void setTrimValue(boolean trimValue) {
            this.trimValue = trimValue;
        }

        public int getMinLengthValue() {
            return minLengthValue;
        }

        @StrutsParameter
        public void setMinLengthValue(int minLengthValue) {
            this.minLengthValue = minLengthValue;
        }

        public int getMaxLengthValue() {
            return maxLengthValue;
        }

        @StrutsParameter
        public void setMaxLengthValue(int maxLengthValue) {
            this.maxLengthValue = maxLengthValue;
        }

        public String[] getStrings() {
            return strings;
        }

        @StrutsParameter
        public void setStrings(String[] strings) {
            this.strings = strings;
        }

        public Collection<String> getStringCollection() {
            return stringCollection;
        }

        @StrutsParameter
        public void setStringCollection(Collection<String> stringCollection) {
            this.stringCollection = stringCollection;
        }
    }

}
