Unit test for tdf#160985
Change-Id: I721d127b145b6524a946c42eb23f8004c700db11
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/167648
Tested-by: Jenkins
Reviewed-by: Eike Rathke <erack@redhat.com>
diff --git a/sal/qa/rtl/math/test-rtl-math.cxx b/sal/qa/rtl/math/test-rtl-math.cxx
index ce73edb..7e28356 100644
--- a/sal/qa/rtl/math/test-rtl-math.cxx
+++ b/sal/qa/rtl/math/test-rtl-math.cxx
@@ -407,6 +407,20 @@ public:
aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_G, -3, '.', true);
CPPUNIT_ASSERT_EQUAL( u"1.2E+004"_ustr, aRes);
fVal = 2000000528764739.0;
aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_G, 15, '.', true);
CPPUNIT_ASSERT_EQUAL( u"2.00000052876474E+015"_ustr, aRes);
// The original problem of tdf#160985 was nDecPlaces = 16 with
// RTL_STR_MAX_VALUEOFDOUBLE - std::size("-x.E-xxx")
fVal = 2000000528764739.0;
aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_G, 16, '.', true);
CPPUNIT_ASSERT_EQUAL( u"2000000528764739"_ustr, aRes);
fVal = 2000000528764739.0;
aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_G, 18, '.', false);
CPPUNIT_ASSERT_EQUAL( u"2000000528764739.00"_ustr, aRes);
// DBL_MAX and 4 nextafters
fVal = DBL_MAX;
aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_Automatic,
