diff options
| author | Eike Rathke <erack@redhat.com> | 2016-10-01 12:12:38 +0200 |
|---|---|---|
| committer | Eike Rathke <erack@redhat.com> | 2016-10-02 00:00:56 +0000 |
| commit | 2907779a5c576b341ef33e795617a7c54de668a2 (patch) | |
| tree | d12d2933c6398c1a31aca46721004af1aca9050e /sal/qa | |
| parent | 55c30b56ed9bfe44ab2a2a6861aa3d9ad2d16601 (diff) | |
unit test cases for approxEqual() and approxSub()
Change-Id: I4aa53d83feaccd3d08c69a35cee2fa84f1ec0964
Reviewed-on: https://gerrit.libreoffice.org/29429
Reviewed-by: Eike Rathke <erack@redhat.com>
Tested-by: Jenkins <ci@libreoffice.org>
Diffstat (limited to 'sal/qa')
| -rw-r--r-- | sal/qa/rtl/math/test-rtl-math.cxx | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/sal/qa/rtl/math/test-rtl-math.cxx b/sal/qa/rtl/math/test-rtl-math.cxx index 7dd492db30aa..a2e3e2e68047 100644 --- a/sal/qa/rtl/math/test-rtl-math.cxx +++ b/sal/qa/rtl/math/test-rtl-math.cxx @@ -205,6 +205,28 @@ public: CPPUNIT_ASSERT_EQUAL( OUString("9.00719925474099E+015"), aRes); } + void test_approx() { + // (2^53)-1 , (2^53)-3 + CPPUNIT_ASSERT_EQUAL( false, rtl::math::approxEqual( 9007199254740991.0, 9007199254740989.0)); + // (2^53)-1 , (2^53)-2 + CPPUNIT_ASSERT_EQUAL( false, rtl::math::approxEqual( 9007199254740991.0, 9007199254740990.0)); + // Note: the following are internally represented as 900719925474099.12 + // and 900719925474098.88 and the difference is 0.25 ... + CPPUNIT_ASSERT_EQUAL( true, rtl::math::approxEqual( 900719925474099.1, 900719925474098.9)); + CPPUNIT_ASSERT_EQUAL( true, rtl::math::approxEqual( 72.944444444444443, 72.9444444444444)); + CPPUNIT_ASSERT_EQUAL( true, rtl::math::approxEqual( 359650.27322404372, 359650.27322404401)); + CPPUNIT_ASSERT_EQUAL( true, rtl::math::approxEqual( 5.3590326375710063e+238, 5.3590326375710109e+238)); + CPPUNIT_ASSERT_EQUAL( true, rtl::math::approxEqual( 7.4124095894894475e+158, 7.4124095894894514e+158)); + CPPUNIT_ASSERT_EQUAL( true, rtl::math::approxEqual( 1.2905754687023132e+79, 1.2905754687023098e+79)); + CPPUNIT_ASSERT_EQUAL( true, rtl::math::approxEqual( 3.5612905090455637e+38, 3.5612905090455599e+38)); + // 0.3 - 0.2 - 0.1 == 0.0 + CPPUNIT_ASSERT_EQUAL( 0.0, rtl::math::approxSub( rtl::math::approxSub( 0.3, 0.2), 0.1)); + // ((2^53)-1) - ((2^53)-2) == 1.0 + CPPUNIT_ASSERT_EQUAL( 1.0, rtl::math::approxSub( 9007199254740991.0, 9007199254740990.0)); + // (3^31) - ((3^31)-1) == 1.0 + CPPUNIT_ASSERT_EQUAL( 1.0, rtl::math::approxSub( 617673396283947.0, 617673396283946.0)); + } + void test_erf() { double x, res; x = 0.0; @@ -298,6 +320,7 @@ public: CPPUNIT_TEST(test_erfc); CPPUNIT_TEST(test_expm1); CPPUNIT_TEST(test_log1p); + CPPUNIT_TEST(test_approx); CPPUNIT_TEST_SUITE_END(); }; |