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package org.scijava.log;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;

import java.util.Collections;

import org.junit.Test;

/**
 * Tests {@link LogSource}
 */
public class LogSourceTest {

	@Test
	public void testRoot() {
		LogSource root = LogSource.newRoot();
		assertEquals(Collections.emptyList(), root.path());
		assertTrue(root.isRoot());
	}

	@Test
	public void testIsRoot() {
		LogSource source = LogSource.newRoot().subSource("sub");
		assertFalse(source.isRoot());
	}

	@Test
	public void testChildIsUnique() {
		String name = "foo";
		LogSource root = LogSource.newRoot();
		LogSource a = root.subSource(name);
		LogSource b = root.subSource(name);
		assertSame(a, b);
	}

	@Test
	public void testLogSourceParse() {
		LogSource foo = LogSource.newRoot().subSource("foo");
		LogSource result = foo.subSource("Hello:World");
		LogSource expected = foo.subSource("Hello").subSource("World");
		assertEquals(expected, result);
	}

	@Test
	public void testToString() {
		LogSource source = LogSource.newRoot().subSource("Hello").subSource("World");
		String result = source.toString();
		assertEquals("Hello:World", result);
	}

	@Test
	public void testRootToString() {
		LogSource source = LogSource.newRoot();
		String result = source.toString();
		assertEquals("", result);
	}

	@Test
	public void testName() {
		LogSource source = LogSource.newRoot().subSource("Hello").subSource("World");
		assertEquals("World", source.name());
	}

	@Test
	public void testParent() {
		LogSource root = LogSource.newRoot();
		LogSource source = root.subSource("sub");
		assertSame(root, source.parent());
	}

	@Test
	public void testUnsetLogLevel() {
		LogSource source = LogSource.newRoot();
		assertFalse(source.hasLogLevel());
	}

	@Test
	public void testSetLogLevel() {
		LogSource source = LogSource.newRoot();
		source.setLogLevel(LogLevel.INFO);
		assertTrue(source.hasLogLevel());
		assertEquals(LogLevel.INFO, source.logLevel());
	}
}
