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package org.scijava.io.location;

import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;

import org.junit.Test;
import org.scijava.io.ByteArrayByteBank;
import org.scijava.util.ByteArray;

/**
 * Tests {@link BytesLocation}.
 *
 * @author Curtis Rueden
 */
public class BytesLocationTest {

	/** Tests {@link BytesLocation#BytesLocation(byte[])}. */
	@Test
	public void testBytes() {
		final byte[] digits = { 3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5, 8, 9, 7, 9 };
		final BytesLocation loc = new BytesLocation(digits);

		final byte[] testDigits = new byte[digits.length];
		loc.getByteBank().getBytes(0, testDigits);
		assertEquals(digits.length, loc.getByteBank().size());
		assertArrayEquals(digits, testDigits);
	}

	/** Tests {@link BytesLocation#BytesLocation(byte[], int, int)}. */
	@Test
	public void testBytesOffsetLength() {
		final byte[] digits = { 3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5, 8, 9, 7, 9 };
		final int offset = 3, length = 5;
		final BytesLocation loc = new BytesLocation(digits, offset, length);

		final byte[] testDigits = new byte[digits.length];
		loc.getByteBank().getBytes(0, testDigits);
		assertEquals(length, loc.getByteBank().size());

		final byte[] expectedDigits = new byte[digits.length];
		System.arraycopy(digits, offset, expectedDigits, 0, length);
		assertArrayEquals(expectedDigits, testDigits);
	}

	/**
	 * Tests getName()
	 */
	@Test
	public void getNameTest() {

		final BytesLocation loc1 = new BytesLocation(0);
		assertEquals(loc1.defaultName(), loc1.getName());
		assertEquals("Location.defaultName", loc1.defaultName());

		final String expectedName = "test.name";
		BytesLocation loc2 = new BytesLocation(0, expectedName);
		assertEquals(expectedName, loc2.getName());

		loc2 = new BytesLocation(new byte[0], expectedName);
		assertEquals(expectedName, loc2.getName());

		loc2 = new BytesLocation(new ByteArray(), expectedName);
		assertEquals(expectedName, loc2.getName());

		loc2 = new BytesLocation(new ByteArrayByteBank(), expectedName);
		assertEquals(expectedName, loc2.getName());

		loc2 = new BytesLocation(new byte[0], 0, 0, expectedName);
		assertEquals(expectedName, loc2.getName());
	}

}
