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diff --git a/basic/qa/basic_coverage/test_cstr_method.bas b/basic/qa/basic_coverage/test_cstr_method.bas
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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/.
+'
+
+Option Explicit
+
+Function doUnitTest() As String
+ TestUtil.TestInit
+ verify_testCStr
+ doUnitTest = TestUtil.GetResult()
+End Function
+
+Sub verify_testCStr
+ On Error GoTo errorHandler
+
+ ' CSTR
+ TestUtil.AssertEqual(CStr(100), "100", "CStr(100)")
+
+ ' tdf#143575 - round string to their nearest double representation
+ ' N.B.: check also how current conversion rounds a close number
+ ' Without the fix in place, this test would have failed with:
+ ' - Expected: 691.2
+ ' - Actual : 691.2000000000001
+ TestUtil.AssertEqual(CStr(691.2), "691.2", "CStr(691.2)")
+ ' Without the fix in place, this test would have failed with:
+ ' - Expected: 691.2
+ ' - Actual : 691.1999999999999
+ TestUtil.AssertEqual(CStr(123.4 + 567.8), "691.2", "CStr(123.4 + 567.8)")
+
+ Exit Sub
+errorHandler:
+ TestUtil.ReportErrorHandler("verify_testCStr", Err, Error$, Erl)
+End Sub