package de.nclazz.commons.io;

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.*;

class MimeTypeTest {

    @Test
    void MimeTypeParsedFromString() {

        MimeType type = MimeType.parse("application/json");
        assertEquals("application", type.getMediaType());
        assertEquals("json", type.getSubType());

        type = MimeType.parse("image/jpeg");
        assertEquals("image", type.getMediaType());
        assertEquals("jpeg", type.getSubType());

    }

    @Test
    void MimeTypeParsedThrowsExceptionOnInvalidInput() {
        assertThrows(IllegalArgumentException.class, () -> MimeType.parse("application/"));
        assertThrows(IllegalArgumentException.class, () -> MimeType.parse("/json"));
        assertThrows(IllegalArgumentException.class, () -> MimeType.parse("/"));
        assertThrows(IllegalArgumentException.class, () -> MimeType.parse("application"));
        assertThrows(NullPointerException.class, () -> MimeType.parse(null));
    }

    @Test
    void MimeTypeToStringEqualsOriginalString() {

        String mimeStr = "application/json";
        MimeType type = MimeType.parse(mimeStr);
        assertEquals("application", type.getMediaType());
        assertEquals("json", type.getSubType());
        assertEquals(mimeStr, type.toString());

        mimeStr = "image/jpeg";
        type = MimeType.parse(mimeStr);
        assertEquals("image", type.getMediaType());
        assertEquals("jpeg", type.getSubType());
        assertEquals(mimeStr, type.toString());
    }

}