Class FeatureUtil

java.lang.Object
com.google.common.collect.testing.features.FeatureUtil
@GwtIncompatible public final class FeatureUtil extends Object
Utilities for collecting and validating tester requirements from annotations.
Author:
George van den Driessche

  • Method Details

    • addImpliedFeatures

      @CanIgnoreReturnValue public static Set<Feature<?>> addImpliedFeatures(Set<Feature<?>> features)
      Given a set of features, add to it all the features directly or indirectly implied by any of them, and return it.
      Parameters:
      features - the set of features to expand
      Returns:
      the same set of features, expanded with all implied features

    • impliedFeatures

      public static Set<Feature<?>> impliedFeatures(Set<Feature<?>> features)
      Given a set of features, return a new set of all features directly or indirectly implied by any of them.
      Parameters:
      features - the set of features whose implications to find
      Returns:
      the implied set of features

    • getTesterRequirements

      public static TesterRequirements getTesterRequirements(Class<?> testerClass) throws ConflictingRequirementsException
      Get the full set of requirements for a tester class.
      Parameters:
      testerClass - a tester class
      Returns:
      all the constraints implicitly or explicitly required by the class or any of its superclasses.
      Throws:
      ConflictingRequirementsException - if the requirements are mutually inconsistent.

    • getTesterRequirements

      public static TesterRequirements getTesterRequirements(Method testerMethod) throws ConflictingRequirementsException
      Get the full set of requirements for a tester class.
      Parameters:
      testerMethod - a test method of a tester class
      Returns:
      all the constraints implicitly or explicitly required by the method, its declaring class, or any of its superclasses.
      Throws:
      ConflictingRequirementsException - if the requirements are mutually inconsistent.

    • buildDeclaredTesterRequirements

      public static TesterRequirements buildDeclaredTesterRequirements(AnnotatedElement classOrMethod) throws ConflictingRequirementsException
      Construct the set of requirements specified by annotations directly on a tester class or method.
      Parameters:
      classOrMethod - a tester class or a test method thereof
      Returns:
      all the constraints implicitly or explicitly required by annotations on the class or method.
      Throws:
      ConflictingRequirementsException - if the requirements are mutually inconsistent.

    • getTesterAnnotations

      public static Iterable<Annotation> getTesterAnnotations(AnnotatedElement classOrMethod)
      Find all the tester annotations declared on a tester class or method.
      Parameters:
      classOrMethod - a class or method whose tester annotations to find
      Returns:
      an iterable sequence of tester annotations on the class

    • intersection

      @Deprecated public static <T> Set<T> intersection(Set<? extends T> set1, Set<? extends T> set2)
      Deprecated.
      Use Sets.intersection(Set, Set) instead.
      Construct a new Set that is the intersection of the given sets.