jna-master/contrib/platform/test/com/sun/jna/platform/win32/VersionHelpersTest.java
/* Copyright (c) 2019 Daniel Widdis, All Rights Reserved
 *
 * The contents of this file is dual-licensed under 2
 * alternative Open Source/Free licenses: LGPL 2.1 or later and
 * Apache License 2.0. (starting with JNA version 4.0.0).
 *
 * You can freely decide which license you want to apply to
 * the project.
 *
 * You may obtain a copy of the LGPL License at:
 *
 * http://www.gnu.org/licenses/licenses.html
 *
 * A copy is also included in the downloadable source code package
 * containing JNA, in file "LGPL2.1".
 *
 * You may obtain a copy of the Apache License at:
 *
 * http://www.apache.org/licenses/
 *
 * A copy is also included in the downloadable source code package
 * containing JNA, in file "AL2.0".
 */
package com.sun.jna.platform.win32;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import org.junit.Test;

public class VersionHelpersTest {
    @Test
    public void testVersionHelpers() {
        // All windows versions should be higher than version 0.0!
        assertTrue(VersionHelpers.IsWindowsVersionOrGreater(0, 0, 0));
        // All windows versions should be lower than version Short.MAX_VALUE!
        assertFalse(VersionHelpers.IsWindowsVersionOrGreater(Short.MAX_VALUE, Short.MAX_VALUE, Short.MAX_VALUE));
        // These tests in order should be true until false; once false never
        // true again
        boolean lastVersionTest = true;
        boolean versionTest = VersionHelpers.IsWindowsXPOrGreater();
        assertTrue((lastVersionTest == versionTest) || !versionTest);

        lastVersionTest = versionTest;
        versionTest = VersionHelpers.IsWindowsXPSP1OrGreater();
        assertTrue((lastVersionTest == versionTest) || !versionTest);

        lastVersionTest = versionTest;
        versionTest = VersionHelpers.IsWindowsXPSP2OrGreater();
        assertTrue((lastVersionTest == versionTest) || !versionTest);

        lastVersionTest = versionTest;
        versionTest = VersionHelpers.IsWindowsXPSP3OrGreater();
        assertTrue((lastVersionTest == versionTest) || !versionTest);

        lastVersionTest = versionTest;
        versionTest = VersionHelpers.IsWindowsVistaOrGreater();
        assertTrue((lastVersionTest == versionTest) || !versionTest);

        lastVersionTest = versionTest;
        versionTest = VersionHelpers.IsWindowsVistaSP1OrGreater();
        assertTrue((lastVersionTest == versionTest) || !versionTest);

        lastVersionTest = versionTest;
        versionTest = VersionHelpers.IsWindowsVistaSP2OrGreater();
        assertTrue((lastVersionTest == versionTest) || !versionTest);

        lastVersionTest = versionTest;
        versionTest = VersionHelpers.IsWindows7OrGreater();
        assertTrue((lastVersionTest == versionTest) || !versionTest);

        lastVersionTest = versionTest;
        versionTest = VersionHelpers.IsWindows7SP1OrGreater();
        assertTrue((lastVersionTest == versionTest) || !versionTest);

        lastVersionTest = versionTest;
        versionTest = VersionHelpers.IsWindows8OrGreater();
        assertTrue((lastVersionTest == versionTest) || !versionTest);

        lastVersionTest = versionTest;
        versionTest = VersionHelpers.IsWindows8Point1OrGreater();
        assertTrue((lastVersionTest == versionTest) || !versionTest);

        lastVersionTest = versionTest;
        versionTest = VersionHelpers.IsWindows10OrGreater();
        assertTrue((lastVersionTest == versionTest) || !versionTest);
    }
}

