/*******************************************************************************
 * Copyright (c) 2012-2016 Codenvy, S.A.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * <p/>
 * Contributors:
 * Codenvy, S.A. - initial API and implementation
 *******************************************************************************/
package org.everrest.core.impl.header;

import com.google.common.collect.ImmutableMap;
import com.tngtech.java.junit.dataprovider.DataProvider;
import com.tngtech.java.junit.dataprovider.DataProviderRunner;
import com.tngtech.java.junit.dataprovider.UseDataProvider;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;

import java.text.ParseException;
import java.util.Map;

import static org.junit.Assert.assertEquals;

@RunWith(DataProviderRunner.class)
public class HeaderParameterParserTest {

    private HeaderParameterParser headerParameterParser;

    @Before
    public void setUp() throws Exception {
        headerParameterParser = new HeaderParameterParser();
    }

    @DataProvider
    public static Object[][] forParses() {
        return new Object[][]{
                {"text/plain", ImmutableMap.of()},

                {"text/plain ; ", ImmutableMap.of()},

                {"text/plain;foo=bar", ImmutableMap.of("foo", "bar")},

                {"text/plain;foo=\"bar\"", ImmutableMap.of("foo", "bar")},

                {"text/plain;foo=\"\\\"he\\\";llo\\\"\"   ;  ba r  =  f o o       ; foo2=x",
                 ImmutableMap.of("foo", "\"he\";llo\"", "ba r", "f o o", "foo2", "x")},

                {"text/plain;bar=\"foo\" \t ; test=\"\\a\\b\\c\\\"\"   ;  foo=bar",
                 ImmutableMap.of("foo", "bar", "test", "\\a\\b\\c\"", "bar", "foo")}
        };
    }

    @UseDataProvider("forParses")
    @Test
    public void parses(String header, Map<String, String> expectedParsedParameters) throws Exception {
        assertEquals(expectedParsedParameters, headerParameterParser.parse(header));
    }

    @Test(expected = ParseException.class)
    public void throwsExceptionWhenStringContainsUnclosedQuote() throws Exception {
       headerParameterParser.parse("text/plain;foo=\"bar");
    }

    @Test(expected = ParseException.class)
    public void throwsExceptionWhenStringContainsIllegalCharacter() throws Exception {
        headerParameterParser.parse("text/plain;fo[o=\"bar\"");
    }
}