equals-tester

testEquality {
    group(User("alex"), User("alex"), User("alex"))
    group(User("sergey"), User("sergey"))
    // User("page") is instantiated multiple times (default is 2).
    // Can be customized via defaultGroupSize.
    group { User("page") }
}

implementation("io.github.adokky:equals-tester:1.1.0")

testEquality {
    // Whether to require that no two objects in the same group are identical (===). Default: false
    requireNonIdentical = true
    
    // Maximum number of test iterations before switching to random sampling. Default: 100_000
    maxIterations = 1000
    
    // Default number of instances generated by factory functions. Default: 2
    defaultGroupSize = 3
    
    // Whether to check toString() consistency with equals(). Default: false
    checkToString = true
    
    // Whether to check Collection contract compliance (List, Map, Set). Default: true
    checkCollectionContracts = true
    
    // Whether to check Comparable contract compliance. Default: true
    checkComparable = true
    
    // Group with predefined equal objects
    group(User("alex", 25), User("alex", 25))
    
    // Group using factory function (creates defaultGroupSize instances)
    group { index -> User("user", 30) }

    // Group from list
    group(listOf(User("bob", 35), User("bob", 35)))
    
    // Group with explicit size
    groupOfSize(5) { index -> User("user", 30) }
    
    // Named groups (names are used in error messages)
    namedGroup("test group", User("alex", 25), User("alex", 25))
    namedGroup("test group", listOf(User("charlie", 45), User("charlie", 45)))
    namedGroup("special users") { index -> User("special", 40) }
    namedGroup("admin users", size = 2) { index -> User("admin", 50) }
}