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java - 参数化测试因 mvn test 失败

问题描述

我在一个简单的参数化 java 测试中苦苦挣扎，但找不到合适的解决方案：-S

也许你可以提示我错过了什么。

以下场景我一直在测试运行

集合初始化失败

当我hashCode在我的类中复制完全生成的方法时，RoundDefinition它工作得很好。但我不想明确hashCode地用生成的方法来覆盖该方法......（这显然不是解决方案）

楷模

@Entity
@Data
@Table( name = "tbl_rounddefinition" )
@JsonIgnoreProperties( value = { "hibernateLazyInitializer", "handler", }, ignoreUnknown = true )
@ToString( exclude = { "tournament" } )
@EqualsAndHashCode( exclude = { "tournament" } )
public class RoundDefinition implements Serializable {

    @Id
    @GeneratedValue( strategy = IDENTITY )
    @Column( name = "rounddefinition_id" )
    private Long id;

    @ManyToOne( fetch = FetchType.LAZY )
    @JoinColumn( name = "rounddefinition_linktournamentid" )
    @JsonIdentityInfo( generator = ObjectIdGenerators.PropertyGenerator.class, property = "id" )
    @JsonIdentityReference( alwaysAsId = true )
    private Tournament tournament;

    @Column( name = "rounddefinition_round" )
    private Integer round;

    @Column( name = "rounddefinition_numberOfRoundresults" )
    private Integer numberOfRoundresults;
}

@Data
@ToString( exclude = { [...] } )
@EqualsAndHashCode( exclude = { [...], "roundDefinitions" } )
@Entity
@Table( name = "tbl_tournament" )
@JsonIgnoreProperties( value = { "hibernateLazyInitializer", "handler" }, ignoreUnknown = true )
public class Tournament implements Serializable {

[...]

    @OneToMany( fetch = FetchType.LAZY, mappedBy = "tournament", cascade = CascadeType.ALL, orphanRemoval = true )
    @JsonSerialize( using = CollectionSerializer.class )
    @JsonDeserialize( using = CollectionDeserializer.class )
    @OrderBy( " round ASC " )
    private Set<RoundDefinition> roundDefinitions = new HashSet<>();

[...]

}

测试

@RunWith( Parameterized.class )
@Slf4j
public class KnockoutTests {

    @InjectMocks
    private Knockout underTest;

    @Mock
    private MatchRepository matchRepository;

    private Integer tournamentSize;
    private Integer expectedMatchSize;
    private Integer expectedMaxRound;
    private List<RoundDefinition> roundDefinitions;

    public KnockoutTests( Integer tournamentSize, Integer expectedMatchSize, Integer expectedMaxRound,
            List<RoundDefinition> roundDefinitions )
    {
        this.tournamentSize = tournamentSize;
        this.expectedMatchSize = expectedMatchSize;
        this.expectedMaxRound = expectedMaxRound;
        this.roundDefinitions = roundDefinitions;
    }

    @Before
    public void setUp() {
        MockitoAnnotations.initMocks( this );
    }

    @Test
    public void testGenerate() {
        Tournament tournament = new Tournament();
        tournament.setTeamsize( 1 );
        System.out.println( "############# " + roundDefinitions.toString() + " #############" );
        tournament.setRoundDefinitions( new HashSet<>( roundDefinitions ) ); // <<-- Here I'm getting this weird ArrayIndexOutOfBoundsExceptions
        [...]
    }

    @Parameterized.Parameters( name = "{index}: Test with tournamentSize={0}, expectedMatchSize: {1}, expectedMaxRound: {2}" )
    public static Collection testData() {
        return Arrays.asList( new Object[][] {
                { 1, 1, 1, new ArrayList<RoundDefinition>() {{
                    add( getRoundDefinition( 1L, 1, 1 ) );
                }} },
                { 2, 1, 1, new ArrayList<RoundDefinition>() {{
                    add( getRoundDefinition( 1L, 1, 1 ) );
                }} },
                { 15, 15, 4, new ArrayList<RoundDefinition>() {{
                    add( getRoundDefinition( 1L, 1, 1 ) );
                    add( getRoundDefinition( 2L, 3, 3 ) );
                    add( getRoundDefinition( 3L, 4, 5 ) );
                }} },
                { 16, 15, 4, new ArrayList<RoundDefinition>() {{
                    add( getRoundDefinition( 1L, 1, 1 ) );
                }} },
                { 17, 31, 5, new ArrayList<RoundDefinition>() {{
                    add( getRoundDefinition( 1L, 1, 1 ) );
                }} },
                { 129, 255, 8, new ArrayList<RoundDefinition>() {{
                    add( getRoundDefinition( 1L, 1, 1 ) );
                }} },
                { 256, 255, 8, new ArrayList<RoundDefinition>() {{
                    add( getRoundDefinition( 1L, 1, 1 ) );
                }} },
                { 257, 511, 9, new ArrayList<RoundDefinition>() {{
                    add( getRoundDefinition( 1L, 1, 1 ) );
                    add( getRoundDefinition( 2L, 3, 3 ) );
                    add( getRoundDefinition( 3L, 4, 5 ) );
                }} }
        } );
    }

    private static RoundDefinition getRoundDefinition( long id, int round, int numberOfRoundresults ) {
        RoundDefinition rd = new RoundDefinition();
        rd.setId( id );
        rd.setRound( round );
        rd.setNumberOfRoundresults( numberOfRoundresults );
        return rd;
    }
[...]
}

控制台输出

############# [RoundDefinition(id=1, tournament=null, round=1, numberOfRoundresults=1)] #############

############# [RoundDefinition(id=1, tournament=null, round=1, numberOfRoundresults=1), RoundDefinition(id=2, tournament=null, round=3, numberOfRoundresults=3), RoundDefinition(id=3, tournament=null, round=4, numberOfRoundresults=5)] #############
############# [RoundDefinition(id=1, tournament=null, round=1, numberOfRoundresults=1)] #############
############# [RoundDefinition(id=1, tournament=null, round=1, numberOfRoundresults=1)] #############
############# [RoundDefinition(id=1, tournament=null, round=1, numberOfRoundresults=1)] #############
############# [RoundDefinition(id=1, tournament=null, round=1, numberOfRoundresults=1)] #############
############# [RoundDefinition(id=1, tournament=null, round=1, numberOfRoundresults=1), RoundDefinition(id=2, tournament=null, round=3, numberOfRoundresults=3), RoundDefinition(id=3, tournament=null, round=4, numberOfRoundresults=5)] #############
Tests run: 8, Failures: 0, Errors: 8, Skipped: 0, Time elapsed: 0.015 sec <<< FAILURE! - in pkg.service.tournament.handler.generator.KnockoutTests
testGenerate[0: Test with tournamentSize=1, expectedMatchSize: 1, expectedMaxRound: 1](pkg.service.tournament.handler.generator.KnockoutTests)  Time elapsed: 0.008 sec  <<< ERROR!
java.lang.ArrayIndexOutOfBoundsException: 35
    at pkg.model.entities.RoundDefinition.hashCode(RoundDefinition.java:26)
    at java.util.HashMap.hash(HashMap.java:339)
    at java.util.HashMap.put(HashMap.java:612)
    at java.util.HashSet.add(HashSet.java:220)
    at java.util.AbstractCollection.addAll(AbstractCollection.java:344)
    at java.util.HashSet.<init>(HashSet.java:120)
    at pkg.service.tournament.handler.generator.KnockoutTests.testGenerate(KnockoutTests.java:67)

testGenerate[1: Test with tournamentSize=2, expectedMatchSize: 1, expectedMaxRound: 1](pkg.service.tournament.handler.generator.KnockoutTests)  Time elapsed: 0 sec  <<< ERROR!
java.lang.ArrayIndexOutOfBoundsException: 35
    at pkg.model.entities.RoundDefinition.hashCode(RoundDefinition.java:26)
    at java.util.HashMap.hash(HashMap.java:339)
    at java.util.HashMap.put(HashMap.java:612)
    at java.util.HashSet.add(HashSet.java:220)
    at java.util.AbstractCollection.addAll(AbstractCollection.java:344)
    at java.util.HashSet.<init>(HashSet.java:120)
    at pkg.service.tournament.handler.generator.KnockoutTests.testGenerate(KnockoutTests.java:67)

lombok 生成的代码

public int hashCode() {
        int PRIME = true;
        int result = 1;
        Object $id = this.getId();
        int result = result * 59 + ($id == null ? 43 : $id.hashCode());
        Object $round = this.getRound();
        result = result * 59 + ($round == null ? 43 : $round.hashCode());
        Object $numberOfRoundresults = this.getNumberOfRoundresults();
        result = result * 59 + ($numberOfRoundresults == null ? 43 : $numberOfRoundresults.hashCode());
        return result;
    }

#2 编辑：

切换到显式生成

Set<RoundDefinition> definitions = new HashSet<>(  );
        for (RoundDefinition rd : roundDefinitions) {
            RoundDefinition asd = new RoundDefinition();
            asd.setRound( rd.getRound() );
            asd.setNumberOfRoundresults( rd.getNumberOfRoundresults() );
            definitions.add(asd); // <-- ArrayIndexOutOfBoundsException
        }

#3 编辑：

出于好奇，我尝试将一个元素添加到另一组类中

Set<Tournament> tournamentSet = new HashSet<>();
tournamentSet.add(new Tournament()); <-- ArrayIndexOutOfBoundsException

还将这样的初始化添加到其他测试中...相同的行为oO但我可以将字符串添加到HashSet<String>...这里发生了什么：-D

#4 编辑：

检查依赖项是否有更改，但它们似乎与源分支相同。也可以在源分支中重现...

#5 编辑：

从我的模型“RoundDefinition”中删除了 lombok 注释“@Data”，自己编写了 getter 和 setter，测试再次正常工作......使用 lombok v1.18.8

那么为什么当 lombok 生成 hashCode 和 equals 函数时它会失败......

标签： javamavenjunitlombokparameterized

解决方案

太好了，我终于到了可以继续前进的地步……

当我测试了几次尝试时，我注意到我的测试以某种方式再次起作用了。

当我使用配置文件运行测试时，他们失败了，当没有配置文件运行时，他们工作。经过一些挖掘和重构后，我得到了项目的 pom 文件......

插件“maven-sufefire-plugin”像这样被添加了 2 次

<project>
<profiles>
[...]
<profile>
 <id>unit-test</id>
  <plugins>
   [...]
   <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <configuration>
     <argLine>
      ${argLine} -Dfile.encodeing=utf-8 -Duser.timezone=UTC
     </argLine>
    </configuration>
   </plugin>
[...]

<project>
 <build>
  <plugins>
   [...]
   <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <configuration>
     <argLine>
      -Dfile.encodeing=utf-8 -Duser.timezone=UTC
     </argLine>
    </configuration>
   </plugin>
[...]

但该属性${argLine}根本没有在 pom 文件中设置。所以我引入了一个新属性<argLine>并将这些参数放在那里....瞧，它起作用了....不知道为什么会在 hashcode 方法中引发异常，但也许这对其他人也有帮助:-)

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