метод испытания с несколькими уловом блоками

Question

У меня есть такой метод

public QueryResult<?> queryForObject(String queryKey, Class<?> clazz, String... queryParams) { 
    LOGGER.debug("Attempt to get query by key {}.", queryKey); 
    QueryResult<?> result = null; 
    try { 
     if (null != queryKey) { 
      String query = queries.get(queryKey); 
      LOGGER.debug("Retrieve query {} from the my using key {}.", query, queryKey); 
      query = String.format(query, (Object[]) queryParams); //line 47 
      LOGGER.debug("Formatted query {}.", query); 
      result = forceApi.query(query, clazz); 
      LOGGER.debug("Retrieved object {} using ForceApi", result); 
     } 
     return result; 
    } catch (ApiTokenException exc) { 
     throw exc; 
    } catch (ApiException exc) { 
     throw exc; 
    } catch (Exception exc) { 
     throw new SpecialRuntimeException(exc); // there NullPointerException line 59 
    } 
} 

Я хочу проверить весь метод - блок try и все catch блоков.

я написал тест для блока попробовать

@SuppressWarnings("unchecked") 
@Test 
public void testQueryForObjectReturn() { 
    Map<String, String> queries = createMock(Map.class); 
    QueryResult<?> result = createMock(QueryResult.class); 
    mockStatic(String.class); 

    expect(queries.get(QUERY_KEY)).andReturn(StringUtils.EMPTY); 
    expect(String.format(StringUtils.EMPTY, QUERY_PARAMS)).andReturn(StringUtils.EMPTY); 
    expect(forceApi.query(StringUtils.EMPTY, Account.class)).andReturn((QueryResult<Account>) result); 
    replayAll(); 
    queryTemplate.setQueries(queries); // line 61 
    queryTemplate.queryForObject(QUERY_KEY, Account.class, QUERY_PARAMS); 
    verifyAll(); 
} 

Он бросает NullPointerException.

Мое объявление класса и метод setUp выглядит так.

public class SalesforceQueryTemplateTest { 

    private static final String QUERY_KEY = "QUERY"; 
    private static final String QUERY_PARAMS = "1234"; 

    private ForceApi forceApi; 
    private SalesforceQueryTemplate queryTemplate; 

    @Before 
    public void setUp() { 
     forceApi = createStrictMock(ForceApi.class); 
     queryTemplate = new SalesforceQueryTemplate(); 
     queryTemplate.setForceApi(forceApi); 
    } 

Что не так? P.S. каждый раз, когда у меня есть некоторые проблемы с тестирования ...

StackTrace

java.lang.NullPointerException: null 
    at java.util.regex.Matcher.getTextLength(Unknown Source) ~[na:1.7.0_67] 
    at java.util.regex.Matcher.reset(Unknown Source) ~[na:1.7.0_67] 
    at java.util.regex.Matcher.<init>(Unknown Source) ~[na:1.7.0_67] 
    at java.util.regex.Pattern.matcher(Unknown Source) ~[na:1.7.0_67] 
    at java.util.Formatter.parse(Unknown Source) ~[na:1.7.0_67] 
    at java.util.Formatter.format(Unknown Source) ~[na:1.7.0_67] 
    at java.util.Formatter.format(Unknown Source) ~[na:1.7.0_67] 
    at java.lang.String.format(Unknown Source) ~[na:1.7.0_67] 
    at xxx.xxxxxxx.xxxadapters.salesforce.repository.query.SalesforceQueryTemplate.queryForObject(SalesforceQueryTemplate.java:47) ~[bin/:na] 
    at xxx.xxxxxxx.xxxsalesforce.repository.query.SalesforceQueryTemplateTest.testQueryForObjectReturn(SalesforceQueryTemplateTest.java:61) [bin/:na] 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_67] 
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.7.0_67] 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.7.0_67] 
    at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.7.0_67] 
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47) [junit-4.11.jar:na] 
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) [junit-4.11.jar:na] 
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44) [junit-4.11.jar:na] 
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) [junit-4.11.jar:na] 
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26) [junit-4.11.jar:na] 
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271) [junit-4.11.jar:na] 
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70) [junit-4.11.jar:na] 
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50) [junit-4.11.jar:na] 
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238) [junit-4.11.jar:na] 
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63) [junit-4.11.jar:na] 
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236) [junit-4.11.jar:na] 
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53) [junit-4.11.jar:na] 
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229) [junit-4.11.jar:na] 
    at org.junit.runners.ParentRunner.run(ParentRunner.java:309) [junit-4.11.jar:na] 
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) [.cp/:na] 
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) [.cp/:na] 
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) [.cp/:na] 
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675) [.cp/:na] 
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) [.cp/:na] 
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) [.cp/:na] 
xxx.xxxxxxx.xxxcommon.exception.SpecialRuntimeException: java.lang.NullPointerException 
    at xxx.xxxxxxx.xxxadapters.salesforce.repository.query.SalesforceQueryTemplate.queryForObject(SalesforceQueryTemplate.java:59) 
    at xxx.xxxxxxx.xxxsalesforce.repository.query.SalesforceQueryTemplateTest.testQueryForObjectReturn(SalesforceQueryTemplateTest.java:61) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
    at java.lang.reflect.Method.invoke(Unknown Source) 
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47) 
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) 
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44) 
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) 
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26) 
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271) 
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70) 
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50) 
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238) 
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63) 
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236) 
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53) 
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229) 
    at org.junit.runners.ParentRunner.run(ParentRunner.java:309) 
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) 
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) 
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) 
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675) 
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) 
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) 
Caused by: java.lang.NullPointerException 
    at java.util.regex.Matcher.getTextLength(Unknown Source) 
    at java.util.regex.Matcher.reset(Unknown Source) 
    at java.util.regex.Matcher.<init>(Unknown Source) 
    at java.util.regex.Pattern.matcher(Unknown Source) 
    at java.util.Formatter.parse(Unknown Source) 
    at java.util.Formatter.format(Unknown Source) 
    at java.util.Formatter.format(Unknown Source) 
    at java.lang.String.format(Unknown Source) 
    at xxx.xxxxxxx.xxxadapters.salesforce.repository.query.SalesforceQueryTemplate.queryForObject(SalesforceQueryTemplate.java:47) 
    ... 25 more 

Answer 1

я вещь проблема здесь:

forceApi = createStrictMock(ForceApi.class); 
queryTemplate = new SalesforceQueryTemplate(); 

Non-статическая переменная была инициализирована в момент создания объекта , В вашем коде вы назначили значение перед созданием объекта.

Попробуйте вместо этого:

queryTemplate = new SalesforceQueryTemplate(); 
forceApi = createStrictMock(ForceApi.class);