1 files changed, 66 insertions, 0 deletions
diff --git a/basic/qa/vba_tests/win32compatb.vb b/basic/qa/vba_tests/win32compatb.vb
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+++ b/basic/qa/vba_tests/win32compatb.vb
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+'
+' This file is part of the LibreOffice project.
+'
+' This Source Code Form is subject to the terms of the Mozilla Public
+' License, v. 2.0. If a copy of the MPL was not distributed with this
+' file, You can obtain one at http://mozilla.org/MPL/2.0/.
+'
+' Test built-in compatibility versions of methods whose absence
+' is really felt in VBA, and large numbers of macros import from
+' the system.
+'
+' This module tests different signatures for the same methods.
+'
+
+Option VBASupport 1
+Option Explicit
+
+Private Type LARGE_INTEGER
+    lowpart As Long
+    highpart As Long
+End Type
+
+Private Declare Function QueryPerformanceCounter Lib "kernel32" (lpPerformanceCount As LARGE_INTEGER) As Long
+Private Declare Function QueryPerformanceFrequency Lib "kernel32" (lpFrequency As LARGE_INTEGER) As Long
+
+Function doUnitTest() As String
+    TestUtil.TestInit
+    verify_win32compatb
+    doUnitTest = TestUtil.GetResult()
+End Function
+
+Function convertLarge(scratch As LARGE_INTEGER) As Double
+    Dim ret As Double
+    ret = scratch.highpart
+    ret = ret * 65536 * 65536
+    ret = ret + scratch.lowpart
+    convertLarge = ret
+End Function
+
+Sub verify_win32compatb()
+    Dim scratch as LARGE_INTEGER
+    Dim freq As Double
+    Dim count_a As Double
+    Dim count_b As Double
+    Dim success As Long
+
+    On Error GoTo errorHandler
+
+    success = QueryPerformanceFrequency(scratch)
+    TestUtil.Assert(success <> 0, "QueryPerformanceFrequency")
+    freq = convertLarge(scratch)
+    TestUtil.Assert(freq > 0, "QueryPerformanceFrequency", "perf. frequency is incorrect " & freq)
+
+    success = QueryPerformanceCounter(scratch)
+    TestUtil.Assert(success <> 0, "QueryPerformanceCounter")
+    count_a = convertLarge(scratch)
+
+'    success = QueryPerformanceCounter(scratch)
+'    TestUtil.Assert(success <> 0, "fetching performance count")
+'    count_b = convertLarge(scratch)
+'    TestUtil.Assert(count_a < count_b, "count mismatch " & count_a & " is > " & count_b)
+
+    Exit Sub
+errorHandler:
+    TestUtil.ReportErrorHandler("verify_win32compatb", Err, Error$, Erl)
+End Sub