Java 类org.junit.runners.Parameterized.Parameter 实例源码

private Object createTestUsingFieldInjection() throws Exception {
    List<FrameworkField> annotatedFieldsByParameter = getAnnotatedFieldsByParameter();
    if (annotatedFieldsByParameter.size() != parameters.length) {
        throw new Exception(
                "Wrong number of parameters and @Parameter fields."
                        + " @Parameter fields counted: "
                        + annotatedFieldsByParameter.size()
                        + ", available parameters: " + parameters.length
                        + ".");
    }
    Object testClassInstance = getTestClass().getJavaClass().newInstance();
    for (FrameworkField each : annotatedFieldsByParameter) {
        Field field = each.getField();
        Parameter annotation = field.getAnnotation(Parameter.class);
        int index = annotation.value();
        try {
            field.set(testClassInstance, parameters[index]);
        } catch (IllegalArgumentException iare) {
            throw new Exception(getTestClass().getName()
                    + ": Trying to set " + field.getName()
                    + " with the value " + parameters[index]
                    + " that is not the right type ("
                    + parameters[index].getClass().getSimpleName()
                    + " instead of " + field.getType().getSimpleName()
                    + ").", iare);
        }
    }
    return testClassInstance;
}

@Override
protected void validateFields(List<Throwable> errors) {
    super.validateFields(errors);
    if (getInjectionType() == InjectionType.FIELD) {
        List<FrameworkField> annotatedFieldsByParameter = getAnnotatedFieldsByParameter();
        int[] usedIndices = new int[annotatedFieldsByParameter.size()];
        for (FrameworkField each : annotatedFieldsByParameter) {
            int index = each.getField().getAnnotation(Parameter.class)
                    .value();
            if (index < 0 || index > annotatedFieldsByParameter.size() - 1) {
                errors.add(new Exception("Invalid @Parameter value: "
                        + index + ". @Parameter fields counted: "
                        + annotatedFieldsByParameter.size()
                        + ". Please use an index between 0 and "
                        + (annotatedFieldsByParameter.size() - 1) + "."));
            } else {
                usedIndices[index]++;
            }
        }
        for (int index = 0; index < usedIndices.length; index++) {
            int numberOfUse = usedIndices[index];
            if (numberOfUse == 0) {
                errors.add(new Exception("@Parameter(" + index
                        + ") is never used."));
            } else if (numberOfUse > 1) {
                errors.add(new Exception("@Parameter(" + index
                        + ") is used more than once (" + numberOfUse + ")."));
            }
        }
    }
}

public Map<String, Object> searchParameters() {
    final Map<String, Object> fields = new HashMap<String, Object>();
    for (final Field field : description.getDeclaringClass().getFields()) {
        if (field.isAnnotationPresent(Parameter.class)) {
            try {
                fields.put(field.getName(), field.get(target));
            } catch (IllegalArgumentException | IllegalAccessException e) {
                LOGGER.error("Could not obtain the field {} in the junit test case, marks it public",
                        field.getName(), e);
            }
        }
    }
    return fields;
}

private Object createTestUsingFieldInjection() throws Exception {
    List<FrameworkField> annotatedFieldsByParameter = getAnnotatedFieldsByParameter();
    if (annotatedFieldsByParameter.size() != fParameters.length) {
        throw new Exception(
                "Wrong number of parameters and @Parameter fields."
                        + " @Parameter fields counted: "
                        + annotatedFieldsByParameter.size()
                        + ", available parameters: " + fParameters.length
                        + ".");
    }
    Object testClassInstance = getTestClass().getJavaClass().newInstance();
    for (FrameworkField each : annotatedFieldsByParameter) {
        Field field = each.getField();
        Parameter annotation = field.getAnnotation(Parameter.class);
        int index = annotation.value();
        try {
            field.set(testClassInstance, fParameters[index]);
        } catch (IllegalArgumentException iare) {
            throw new Exception(getTestClass().getName()
                    + ": Trying to set " + field.getName()
                    + " with the value " + fParameters[index]
                    + " that is not the right type ("
                    + fParameters[index].getClass().getSimpleName()
                    + " instead of " + field.getType().getSimpleName()
                    + ").", iare);
        }
    }
    return testClassInstance;
}

@Override
protected void validateFields(List<Throwable> errors) {
    super.validateFields(errors);
    if (fieldsAreAnnotated()) {
        List<FrameworkField> annotatedFieldsByParameter = getAnnotatedFieldsByParameter();
        int[] usedIndices = new int[annotatedFieldsByParameter.size()];
        for (FrameworkField each : annotatedFieldsByParameter) {
            int index = each.getField().getAnnotation(Parameter.class)
                    .value();
            if (index < 0 || index > annotatedFieldsByParameter.size() - 1) {
                errors.add(new Exception("Invalid @Parameter value: "
                        + index + ". @Parameter fields counted: "
                        + annotatedFieldsByParameter.size()
                        + ". Please use an index between 0 and "
                        + (annotatedFieldsByParameter.size() - 1) + "."));
            } else {
                usedIndices[index]++;
            }
        }
        for (int index = 0; index < usedIndices.length; index++) {
            int numberOfUse = usedIndices[index];
            if (numberOfUse == 0) {
                errors.add(new Exception("@Parameter(" + index
                        + ") is never used."));
            } else if (numberOfUse > 1) {
                errors.add(new Exception("@Parameter(" + index
                        + ") is used more than once (" + numberOfUse + ")."));
            }
        }
    }
}

public Map<String, Object> searchParameters() {
    final Map<String, Object> fields = new HashMap<String, Object>();
    for (final Field field : description.getDeclaringClass().getFields()) {
        if (field.isAnnotationPresent(Parameter.class)) {
            try {
                fields.put(field.getName(), field.get(target));
            } catch (IllegalArgumentException | IllegalAccessException e) {
                LOGGER.error("Could not obtain the field {} in the junit test case, marks it public",
                        field.getName(), e);
            }
        }
    }
    return fields;
}

private Object createTestUsingFieldInjection() throws Exception {
    List<FrameworkField> annotatedFieldsByParameter = getAnnotatedFieldsByParameter();
    if (annotatedFieldsByParameter.size() != fParameters.length) {
        throw new Exception(String.format(
                "Wrong number of parameters and @Parameter fields. @Parameter fields counted: %s, available parameters: %s.",
                annotatedFieldsByParameter.size(), fParameters.length));
    }
    Object testClassInstance = getTestClass().getJavaClass().newInstance();
    if (getTestClass().getJavaClass() == JExUnitBase.class) {
        ((JExUnitBase) testClassInstance).setTestType(testType);
    }
    for (FrameworkField each : annotatedFieldsByParameter) {
        Field field = each.getField();
        Parameter annotation = field.getAnnotation(Parameter.class);
        int index = annotation.value();
        try {
            if (field.isAccessible()) {
                field.set(testClassInstance, fParameters[index]);
            } else {
                field.setAccessible(true);
                field.set(testClassInstance, fParameters[index]);
                field.setAccessible(false);
            }
        } catch (IllegalArgumentException iare) {
            throw new Exception(
                    String.format(
                            "%s: Trying to set %s with the value %s that is not the right type (%s instead of %s).",
                            getTestClass().getName(), field.getName(), fParameters[index],
                            fParameters[index].getClass().getSimpleName(), field.getType().getSimpleName()),
                    iare);
        }
    }
    return testClassInstance;
}

@Override
protected void validateFields(List<Throwable> errors) {
    super.validateFields(errors);
    if (fieldsAreAnnotated()) {
        List<FrameworkField> annotatedFieldsByParameter = getAnnotatedFieldsByParameter();
        int[] usedIndices = new int[annotatedFieldsByParameter.size()];
        for (FrameworkField each : annotatedFieldsByParameter) {
            int index = each.getField().getAnnotation(Parameter.class).value();
            if (index < 0 || index > annotatedFieldsByParameter.size() - 1) {
                errors.add(new Exception(String.format(
                        "Invalid @Parameter value: %s. @Parameter fields counted: %s. Please use an index between 0 and %s.",
                        index, annotatedFieldsByParameter.size(), annotatedFieldsByParameter.size() - 1)));
            } else {
                usedIndices[index]++;
            }
        }
        for (int index = 0; index < usedIndices.length; index++) {
            int numberOfUse = usedIndices[index];
            if (numberOfUse == 0) {
                errors.add(new Exception(String.format("@Parameter(%s) is never used.", index)));
            } else if (numberOfUse > 1) {
                errors.add(new Exception(
                        String.format("@Parameter(%s) is used more than once (%s).", index, numberOfUse)));
            }
        }
    }
}

private List<FrameworkField> getAnnotatedFieldsByParameter() {
    return getTestClass().getAnnotatedFields(Parameter.class);
}

private List<FrameworkField> getAnnotatedFieldsByParameter() {
    return getTestClass().getAnnotatedFields(Parameter.class);
}

private List<FrameworkField> getAnnotatedFieldsByParameter() {
    return getTestClass().getAnnotatedFields(Parameter.class);
}