Class RecursiveComparisonDifferenceCalculator
java.lang.Object
org.assertj.core.api.recursive.comparison.RecursiveComparisonDifferenceCalculator
Based on
DeepDifference
but takes a RecursiveComparisonConfiguration
, DeepDifference
being itself based on the deep equals implementation of https://github.com/jdereg/java-util- Author:
- John DeRegnaucourt ([email protected]), Pascal Schumacher
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptiondetermineDifferences
(Object actual, Object expected, RecursiveComparisonConfiguration recursiveComparisonConfiguration) Compare two objects for differences by doing a 'deep' comparison.
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Constructor Details
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RecursiveComparisonDifferenceCalculator
public RecursiveComparisonDifferenceCalculator()
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Method Details
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determineDifferences
public List<ComparisonDifference> determineDifferences(Object actual, Object expected, RecursiveComparisonConfiguration recursiveComparisonConfiguration) Compare two objects for differences by doing a 'deep' comparison. This will traverse the Object graph and perform either a field-by-field comparison on each object (if not .equals() method has been overridden from Object), or it will call the customized .equals() method if it exists.This method handles cycles correctly, for example A->B->C->A. Suppose a and a' are two separate instances of the A with the same values for all fields on A, B, and C. Then a.deepEquals(a') will return an empty list. It uses cycle detection storing visited objects in a Set to prevent endless loops.
- Parameters:
actual
- Object one to compareexpected
- Object two to comparerecursiveComparisonConfiguration
- the recursive comparison configuration- Returns:
- the list of differences found or an empty list if objects are equivalent. Equivalent means that all field values of both subgraphs are the same, either at the field level or via the respectively encountered overridden .equals() methods during traversal.
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