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A modern testing and behavioural specification framework for Java 8

There is a newer version: 0.4

package com.insightfullogic.lambdabehave.impl.generators;

import com.insightfullogic.lambdabehave.generators.Generator;
import com.insightfullogic.lambdabehave.generators.SourceGenerator;

import static java.lang.Integer.MAX_VALUE;

public final class Generators {

    public static final char ASCII_CHAR_START = ' ';
    public static final char ASCII_CHAR_END = '~';
    public static final int GAP = ASCII_CHAR_END - ASCII_CHAR_START;

    private Generators() {}

    public static long longs(final SourceGenerator ng) {
        return ((long) ng.generateInt(MAX_VALUE)) << 32 + ng.generateInt(MAX_VALUE);
    }

    public static IllegalArgumentException exceededMaxTries() {
        return new IllegalArgumentException("Unable to find matching value in " + Generator.MAX_TRIES + " attempts");
    }

}