package mapdecoder;

import org.junit.Test;

import java.util.Map;

import static org.junit.Assert.*;

public class MyMapDecoderTest {

    @Test
    public void testSample1() {
        String entry = "one=1&two=2";
        MyMapDecoder myMapDecoder = new MyMapDecoder();
        Map<String, String> result= myMapDecoder.decode(entry);

        assertEquals("1", result.get("one"));
        assertEquals("2", result.get("two"));
    }

    @Test
    public void testNullInput() {
        String entry = null;
        MyMapDecoder myMapDecoder = new MyMapDecoder();
        Map<String, String> result = myMapDecoder.decode(entry);

        assertEquals(null, result);
    }

    @Test
    public void testEmptyString() {
        String entry = "";
        MyMapDecoder myMapDecoder = new MyMapDecoder();
        Map<String, String> emptyMap = myMapDecoder.decode(entry);
        assertNotNull(emptyMap);
        assertEquals(0, emptyMap.size());
    }

    @Test(expected = IllegalArgumentException.class)
    public void testException1() {
        String entry = "one=1&&two=2";
        MyMapDecoder myMapDecoder = new MyMapDecoder();

        Map<String, String> result = myMapDecoder.decode(entry);
    }

    @Test(expected = IllegalArgumentException.class)
    public void testException2() {
        String entry = "one=1=&two=2";
        MyMapDecoder myMapDecoder = new MyMapDecoder();

        Map<String, String> result = myMapDecoder.decode(entry);
    }

}