com.bancvue.mongomigrate.CreateCommandTests.java Source code

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Here is the source code for com.bancvue.mongomigrate.CreateCommandTests.java

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/*
 * Copyright 2013 BancVue Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.bancvue.mongomigrate;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.filefilter.WildcardFileFilter;
import org.joda.time.DateTime;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Collection;

import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.is;

/**
 * Created with IntelliJ IDEA.
 * User: Chris.Edwards
 * Date: 7/27/13
 * Time: 11:39 AM
 */
@RunWith(JUnit4.class)
public class CreateCommandTests {

    private FakeClock fakeClock;

    @Before
    public void setUp() throws Exception {
        fakeClock = new FakeClock(new DateTime(2013, 6, 29, 20, 0, 0));
    }

    @After
    public void tearDown() throws IOException {
        // Delete all js files in that the test may have created.
        File directory = new File(".");
        Collection<File> files = FileUtils.listFiles(directory, new WildcardFileFilter("*.js"), null);
        for (File file : files) {
            FileUtils.deleteQuietly(file);
        }

        // Delete migrations folder
        File migrationsFolder = new File("migrations");
        FileUtils.deleteDirectory(migrationsFolder);
    }

    @Test
    public void shouldCreateMigrationFilenameWithDateTimePrefix() {
        // Arrange.
        CreateCommand command = new CreateCommand();
        command.setClock(fakeClock);

        // Act.
        int exitCode = command.execute();

        // Assert.
        File expectedFile = new File("20130629200000_migration.js");
        Assert.assertTrue("The created migration file's name did not include the correct datetime prefix.",
                expectedFile.exists());
        assertThat("Should have returned successful exit code.", exitCode, is(0));
    }

    @Test
    public void shouldCreateMigrationFilenameWithUserProvidedNameAsPostfix() {
        // Arrange.
        CreateCommand command = new CreateCommand("my_migration_name");
        command.setClock(fakeClock);

        // Act.
        int exitCode = command.execute();

        // Assert.
        File expectedFile = new File("20130629200000_my_migration_name.js");
        Assert.assertTrue("The created migration file's name did not include the user-provided migration name.",
                expectedFile.exists());
        assertThat("Should have returned successful exit code.", exitCode, is(0));
    }

    @Test
    public void shouldReturnFailingExitCodeIfFileAlreadyExistsWithSameName() throws IOException {
        // Arrange.
        CreateCommand command = new CreateCommand();
        command.setClock(fakeClock);

        Files.createFile(Paths.get("20130629200000_migration.js"));

        // Act.
        int exitCode = command.execute();

        // Assert.
        assertThat("Should have returned a failing exit code.", exitCode, is(1));
    }

    @Test
    public void shouldCreateMigrationFileInSpecifiedMigrationsFolder() {
        // Arrange.
        CreateCommand command = new CreateCommand("my_migration_name", "migrations");
        command.setClock(fakeClock);

        // Act.
        int exitCode = command.execute();

        // Assert.
        File expectedFile = new File("./migrations/20130629200000_my_migration_name.js");
        Assert.assertTrue("Should have created the migration in the specified sub-folder", expectedFile.exists());
        assertThat("Should have returned successful exit code.", exitCode, is(0));
    }
}