1132bc5681
git-svn-id: file:///srv/devel/repo-conversion/nusu@72 d2e56fa2-650e-0410-a79f-9358c0239efd
66 lines
2.3 KiB
C#
66 lines
2.3 KiB
C#
using System;
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using System.Collections.Generic;
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#if UNITTEST
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using NUnit.Framework;
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namespace Nuclex.Support {
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/// <summary>Unit Test for the FloatHelper class</summary>
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[TestFixture]
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public class FloatHelperTest {
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/// <summary>Tests the floating point value comparison helper</summary>
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[Test]
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public void TestFloatComparison() {
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Assert.IsTrue(
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FloatHelper.AreAlmostEqual(0.00000001f, 0.0000000100000008f, 1),
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"Minimal difference between very small floating point numbers is considered equal"
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);
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Assert.IsFalse(
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FloatHelper.AreAlmostEqual(0.00000001f, 0.0000000100000017f, 1),
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"Larger difference between very small floating point numbers is not considered equal"
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);
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Assert.IsTrue(
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FloatHelper.AreAlmostEqual(1000000.00f, 1000000.06f, 1),
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"Minimal difference between very large floating point numbers is considered equal"
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);
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Assert.IsFalse(
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FloatHelper.AreAlmostEqual(1000000.00f, 1000000.13f, 1),
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"Larger difference between very large floating point numbers is not considered equal"
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);
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}
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/// <summary>Tests the double precision floating point value comparison helper</summary>
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[Test]
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public void TestDoubleComparison() {
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Assert.IsTrue(
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FloatHelper.AreAlmostEqual(0.00000001, 0.000000010000000000000002, 1),
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"Minimal difference between very small double precision floating point " +
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"numbers is considered equal"
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);
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Assert.IsFalse(
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FloatHelper.AreAlmostEqual(0.00000001, 0.000000010000000000000004, 1),
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"Larger difference between very small double precision floating point " +
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"numbers is not considered equal"
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);
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Assert.IsTrue(
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FloatHelper.AreAlmostEqual(1000000.00, 1000000.0000000001, 1),
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"Minimal difference between very large double precision floating point " +
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"numbers is considered equal"
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);
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Assert.IsFalse(
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FloatHelper.AreAlmostEqual(1000000.00, 1000000.0000000002, 1),
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"Larger difference between very large double precision floating point " +
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"numbers is not considered equal"
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);
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}
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}
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} // namespace Nuclex.Support
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#endif // UNITTEST |