FileSystemFixtureTest.java

package marubinotto.util.fixture;

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

import java.io.File;
import java.util.HashMap;
import java.util.Map;

import junit.framework.AssertionFailedError;
import marubinotto.util.FileSystemUtils;

import org.apache.commons.io.FileUtils;
import org.junit.Before;
import org.junit.Test;

/**
 * @see FileSystemFixture
 */
public class FileSystemFixtureTest {

	private FileSystemFixture object;
	private File baseDirectory;

	@Before
	public void givenAnInstanceWithEmptyDirectory() throws Exception {
		this.baseDirectory = FileSystemUtils.getEmptyDirectory();
		this.object = new FileSystemFixture(this.baseDirectory);
	}

	@Test
	public void shouldCreateFileWithContent() throws Exception {
		// When
		this.object.put("path/to/file", "content");

		// Then
		File expectedFile = new File(this.baseDirectory, "path/to/file");
		assertTrue(expectedFile.isFile());
		assertEquals("content", FileUtils.readFileToString(expectedFile));
	}

	@Test
	public void shouldReturnAllFilePathsWhichExist() throws Exception {
		// Given
		this.object.put("path/to/file", "content");

		// When
		String[] paths = this.object.getAllFilePaths();

		// Then
		assertEquals(1, paths.length);
		assertEquals("path/to/file", paths[0]);
	}

	@Test
	public void shouldEnsureSpecifiedFileIsContained() throws Exception {
		// Given
		this.object.put("path/to/file", "content");

		// When
		this.object.shouldContainFile("path/to/file");
	}

	@Test(expected = AssertionFailedError.class)
	public void shouldThrowExceptionWhenEnsureNonexistentFileIsContained() throws Exception {
		// Given
		this.object.put("path/to/file", "content");

		// When
		this.object.shouldContainFile("no-such-path");
	}

	@Test
	public void shouldEnsureCotentOfSpecifiedFileIsAsExpected() throws Exception {
		// Given
		this.object.put("path/to/file", "content");

		// When
		this.object.fileContentShouldEqual("path/to/file", "content", null);
	}

	@Test(expected = AssertionFailedError.class)
	public void shouldThrowExceptionWhenEnsureCotentOfSpecifiedFileEqualsToInvalidValue() 
	throws Exception {
		// Given
		this.object.put("path/to/file", "content");

		// When
		this.object.fileContentShouldEqual("path/to/file", "invalid-content", null);
	}

	@Test
	public void shouldEnsureAllFilesAreAsExpected() throws Exception {
		// Given
		this.object.put("file1", "content1");
		this.object.put("file2", "content2");

		// When
		Map<String, String> files = new HashMap<String, String>();
		files.put("file1", "content1");
		files.put("file2", "content2");
		this.object.shouldEqual(files, null);
	}

	@Test(expected = AssertionFailedError.class)
	public void shouldThrowExceptionWhenEnsureTheContentsOfAllFilesEqualToInvalidSetOfFiles() 
	throws Exception {
		// Given
		this.object.put("file1", "content1");
		this.object.put("file2", "content2");
		this.object.put("file3", "content3");

		// When
		Map<String, String> files = new HashMap<String, String>();
		files.put("file1", "content1");
		files.put("file2", "content2");
		this.object.shouldEqual(files, null);
	}

	@Test(expected = AssertionFailedError.class)
	public void shouldThrowExceptionWhenEnsureTheContentsOfAllFilesEqualToInvalidContents() 
	throws Exception {
		// Given
		this.object.put("file1", "content1");
		this.object.put("file2", "content2");

		// When
		Map<String, String> files = new HashMap<String, String>();
		files.put("file1", "content1");
		files.put("file2", "invalid-content");
		this.object.shouldEqual(files, null);
	}

	@Test
	public void shouldEnsureAllFilesAreAsExpectedWithoutContent() 
	throws Exception {
		// Given
		this.object.put("file1", "content1");
		this.object.put("file2", "content2");

		// When
		Map<String, String> files = new HashMap<String, String>();
		files.put("file1", "content1");
		files.put("file2", null);
		this.object.shouldEqual(files, null);
	}
}