jna-master/contrib/platform/test/com/sun/jna/platform/win32/Ole32Test.java
/* Copyright (c) 2010, 2013 Daniel Doubrovkine, Markus Karg, 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 com.sun.jna.Native;
import com.sun.jna.Pointer;
import com.sun.jna.platform.win32.Guid.GUID;
import com.sun.jna.platform.win32.WinNT.HRESULT;
import com.sun.jna.ptr.PointerByReference;

import junit.framework.TestCase;

/**
 * @author dblock[at]dblock[dot]org
 * @author markus[at]headcrashing[dot]eu
 */
public class Ole32Test extends TestCase {

    public static void main(String[] args) {
        junit.textui.TestRunner.run(Ole32Test.class);
    }

    public void testCoCreateGUID() {
        GUID pguid = new GUID();
        assertEquals(W32Errors.S_OK, Ole32.INSTANCE.CoCreateGuid(pguid));
        assertTrue(pguid.Data1 != 0 || pguid.Data2 != 0 || pguid.Data3 != 0
                && pguid.Data4 != null);
    }

    public void testIIDFromString() {
        GUID.ByReference lpiid = new GUID.ByReference();
        assertEquals(W32Errors.S_OK, Ole32.INSTANCE.IIDFromString(
                "{13709620-C279-11CE-A49E-444553540000}", lpiid)); // Shell.Application.1
        assertEquals(0x13709620, lpiid.Data1);
        assertEquals(0xFFFFC279, lpiid.Data2);
        assertEquals(0x11CE, lpiid.Data3);
        assertEquals(0xFFFFFFA4, lpiid.Data4[0]);
        assertEquals(0xFFFFFF9E, lpiid.Data4[1]);
        assertEquals(0x44, lpiid.Data4[2]);
        assertEquals(0x45, lpiid.Data4[3]);
        assertEquals(0x53, lpiid.Data4[4]);
        assertEquals(0x54, lpiid.Data4[5]);
        assertEquals(0, lpiid.Data4[6]);
        assertEquals(0, lpiid.Data4[7]);
    }

    public void testStringFromGUID2() {
        GUID.ByReference pguid = new GUID.ByReference();
        pguid.Data1 = 0;
        pguid.Data2 = 0;
        pguid.Data3 = 0;
        for (int i = 0; i < pguid.Data4.length; i++) {
            pguid.Data4[i] = 0;
        }
        int max = 39;
        char[] lpsz = new char[max];
        int len = Ole32.INSTANCE.StringFromGUID2(pguid, lpsz, max);
        assertTrue(len > 1);
        lpsz[len - 1] = 0;
        assertEquals("{00000000-0000-0000-0000-000000000000}",
                Native.toString(lpsz));
    }

    public void testCoInitializeEx() {
        HRESULT hr = Ole32.INSTANCE.CoInitializeEx(null, 0);
        assertTrue(W32Errors.SUCCEEDED(hr.intValue())
                || hr.intValue() == W32Errors.RPC_E_CHANGED_MODE);
        if (W32Errors.SUCCEEDED(hr.intValue())) {
            Ole32.INSTANCE.CoUninitialize();
        }
    }

    public void testCoCreateInstance() {
        HRESULT hrCI = Ole32.INSTANCE.CoInitializeEx(null, 0);

        GUID guid = Ole32Util
                .getGUIDFromString("{00021401-0000-0000-C000-000000000046}"); // Shell object
        GUID riid = Ole32Util
                .getGUIDFromString("{000214EE-0000-0000-C000-000000000046}"); // IShellLinkA

        PointerByReference pDispatch = new PointerByReference();

        HRESULT hr = Ole32.INSTANCE.CoCreateInstance(guid, null, // pOuter =
                // null, no
                // aggregation
                WTypes.CLSCTX_LOCAL_SERVER, riid, pDispatch);
        assertTrue(W32Errors.SUCCEEDED(hr.intValue()));
        assertNotNull(pDispatch.getValue());
        // We leak this iUnknown reference because we don't have the JNACOM lib
        // here to wrap the native iUnknown pointer and call iUnknown.release()
        if (W32Errors.SUCCEEDED(hrCI.intValue())) {
            Ole32.INSTANCE.CoUninitialize();
        }
    }

    public final void testCLSIDFromProgID() {
        final Guid.CLSID.ByReference clsid = new Guid.CLSID.ByReference();
        assertEquals(WinError.S_OK, Ole32.INSTANCE.CLSIDFromProgID("jpegfile", clsid));
        assertEquals("{25336920-03F9-11CF-8FD0-00AA00686F13}", clsid.toGuidString());
    }

    public void testCoTaskMemAlloc() {
        Pointer ptr = Ole32.INSTANCE.CoTaskMemAlloc(256);

        assertTrue(!ptr.equals(Pointer.NULL));

        Ole32.INSTANCE.CoTaskMemFree(ptr);
    }

    public void testCoTaskMemRealloc() {
        Pointer ptr = Ole32.INSTANCE.CoTaskMemAlloc(256);

        assertTrue(!ptr.equals(Pointer.NULL));

        ptr = Ole32.INSTANCE.CoTaskMemRealloc(ptr, 128);

        assertTrue(!ptr.equals(Pointer.NULL));

        Ole32.INSTANCE.CoTaskMemFree(ptr);
    }

    public void testOleFunctions() {
        HRESULT initResult = Ole32.INSTANCE.OleInitialize(Pointer.NULL);

        assertTrue(W32Errors.SUCCEEDED(initResult));

        // For a real test, a test component will be needed
        Ole32.INSTANCE.OleFlushClipboard();
        Ole32.INSTANCE.OleRun(Pointer.NULL);

        Ole32.INSTANCE.CoUninitialize();
    }
}
