9

H2 データベースに接続し、いくつかの SQL ステートメントを実行するクラスがあります。

public class H2Persistence implements IPersistence {

    private Connection conn;

    @Override
    public void open() {
        try
        {
            Class.forName("org.h2.Driver");
            conn = DriverManager.getConnection(CONN_TYPE_USER_HOME);

            final Statement stmt = conn.createStatement();

            stmt.executeUpdate("CREATE TABLE PERSON(" +
                    "ID BIGINT,"+
                    "AGEGROUP VARCHAR(255),"+
                    "MONTHLY_INCOME_LEVEL VARCHAR(255)," +
                    "GENDER VARCHAR(1),"+
                    "HOUSEHOLD_ID BIGINT)");

        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
...
}

openメソッドで特定の SQL ステートメント ( DROP TABLE IF EXISTS PERSON) が実行されることを検証する単体テストを作成したいと考えています。

これを行うために、次のテストを作成しました。

import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.powermock.api.mockito.PowerMockito.mockStatic;
import static org.powermock.api.mockito.PowerMockito.when;


@RunWith(PowerMockRunner.class)
@PrepareForTest(DriverManager.class)
public class H2PersistenceTest {
    @Test
    public void testDropPersonIsCalled() throws SQLException {
        final Statement statement = mock(Statement.class);

        final Connection connection = mock(Connection.class);

        when(connection.createStatement()).thenReturn(statement);

        mockStatic(DriverManager.class);

        when(DriverManager.getConnection(H2Persistence.CONN_TYPE_USER_HOME)).thenReturn
                (connection);


        final H2Persistence objectUnderTest = new H2Persistence();

        objectUnderTest.open();
        verify(statement.executeUpdate("DROP TABLE IF EXISTS PERSON"));
    }
}

しかし、それは機能しません - モック接続の代わりに、DriverManager実際の接続を返します。

どうすれば修正できますか（DriverManagerテストでリターン接続をモックにします）？

これpom.xmlが私のプロジェクトです。何か問題があるかもしれません。

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>ru.mycompany</groupId>
    <artifactId>myproduct</artifactId>
    <version>1.0-SNAPSHOT</version>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <powermock.version>1.5.1</powermock.version>
        <maven.compiler.source>1.6</maven.compiler.source>
        <maven.compiler.target>1.6</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.10</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.easytesting</groupId>
            <artifactId>fest-util</artifactId>
            <version>1.2.3</version>
        </dependency>
        <dependency>
            <groupId>org.easytesting</groupId>
            <artifactId>fest-assert-core</artifactId>
            <version>2.0M8</version>
        </dependency>
        <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
            <version>15.0</version>
        </dependency>
        <dependency>
            <groupId>org.mockito</groupId>
            <artifactId>mockito-all</artifactId>
            <version>1.9.5</version>
        </dependency>
        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
            <version>1.3.173</version>
        </dependency>
        <dependency>
            <groupId>org.powermock</groupId>
            <artifactId>powermock-module-junit4</artifactId>
            <version>${powermock.version}</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.powermock</groupId>
            <artifactId>powermock-api-mockito</artifactId>
            <version>${powermock.version}</version>
            <scope>test</scope>
        </dependency>
    </dependencies>

</project>
4

2 に答える 2

7

これは機能します（インポートに注意してください）：

import static org.easymock.EasyMock.expect;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import static org.powermock.api.easymock.PowerMock.mockStatic;
import static org.powermock.api.easymock.PowerMock.replay;


@RunWith(PowerMockRunner.class)
@PrepareForTest({DriverManager.class, H2Persistence.class})
public class H2PersistenceTest {
    @Test
    public void testDropPersonIsCalled() throws SQLException {
        final Statement statement = mock(Statement.class);

        final Connection connection = mock(Connection.class);

        when(connection.createStatement()).thenReturn(statement);

        mockStatic(DriverManager.class);

        expect(DriverManager.getConnection(H2Persistence.CONN_TYPE_USER_HOME))
                .andReturn(connection);
        expect(DriverManager.getConnection(null))
                .andReturn(null);

        replay(DriverManager.class);
        final H2Persistence objectUnderTest = new H2Persistence();

        objectUnderTest.open();

        verify(statement).executeUpdate("DROP TABLE IF EXISTS PERSON");
        verify(statement).executeUpdate(H2Persistence.CREATE_TABLE_PERSON);
    }
}
于 2013-10-19T13:09:23.180 に答える