diff options
Diffstat (limited to 'tests/src/CoreMangLib/cti/system/mathf/mathflog.cs')
| -rw-r--r-- | tests/src/CoreMangLib/cti/system/mathf/mathflog.cs | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/tests/src/CoreMangLib/cti/system/mathf/mathflog.cs b/tests/src/CoreMangLib/cti/system/mathf/mathflog.cs new file mode 100644 index 0000000000..7e460c4f26 --- /dev/null +++ b/tests/src/CoreMangLib/cti/system/mathf/mathflog.cs @@ -0,0 +1,246 @@ +// Licensed to the .NET Foundation under one or more agreements. +// The .NET Foundation licenses this file to you under the MIT license. +// See the LICENSE file in the project root for more information. +using System; + +/// <summary> +/// System.MathF.Log(System.Single) +/// </summary> +public class MathFLog +{ + public static int Main(string[] args) + { + MathFLog log = new MathFLog(); + TestLibrary.TestFramework.BeginTestCase("Testing System.MathF.Log(System.Single)..."); + + if (log.RunTests()) + { + TestLibrary.TestFramework.EndTestCase(); + TestLibrary.TestFramework.LogInformation("PASS"); + return 100; + } + else + { + TestLibrary.TestFramework.EndTestCase(); + TestLibrary.TestFramework.LogInformation("FAIL"); + return 0; + } + } + + public bool RunTests() + { + bool retVal = true; + + TestLibrary.TestFramework.LogInformation("[Positive]"); + retVal = PosTest1() && retVal; + retVal = PosTest2() && retVal; + retVal = PosTest3() && retVal; + retVal = PosTest4() && retVal; + retVal = PosTest5() && retVal; + retVal = PosTest6() && retVal; + retVal = PosTest7() && retVal; + + return retVal; + } + + public bool PosTest1() + { + bool retVal = true; + TestLibrary.TestFramework.BeginScenario("PosTest1: Verify the monotonicity of ln(f)..."); + + try + { + float var1 = 100.1f * TestLibrary.Generator.GetSingle(-55); + float var2 = 100.1f * TestLibrary.Generator.GetSingle(-55); + + if (var1 < var2) + { + if (MathF.Log(var1) >= MathF.Log(var2)) + { + TestLibrary.TestFramework.LogError("001", "The value of ln(var1)=" + MathF.Log(var1).ToString() + + " should be less than ln(var2)=" + MathF.Log(var2).ToString()); + retVal = false; + } + } + else if (var1 > var2) + { + if (MathF.Log(var1) <= MathF.Log(var2)) + { + TestLibrary.TestFramework.LogError("002", "The value of ln(var1)=" + MathF.Log(var1).ToString() + + " should be larger than ln(var2)=" + MathF.Log(var2).ToString()); + retVal = false; + } + } + else + { + if (!MathFTestLib.SingleIsWithinEpsilon(MathF.Log(var1), MathF.Log(var2))) + { + TestLibrary.TestFramework.LogError("003", "The value of ln(var1)=" + MathF.Log(var1).ToString() + + " should be equal to ln(var2)=" + MathF.Log(var2).ToString()); + retVal = false; + } + } + } + catch (Exception e) + { + TestLibrary.TestFramework.LogError("004", "Unexpected exception occurs: " + e); + retVal = false; + } + + return retVal; + } + + public bool PosTest2() + { + bool retVal = true; + TestLibrary.TestFramework.BeginScenario("PosTest2: Verify the value is negative when var is between o and 1..."); + + try + { + float var = 0; + while (var <= 0 && var >= 1) + { + var = TestLibrary.Generator.GetSingle(-55); + } + + if (MathF.Log(var) >= 0) + { + TestLibrary.TestFramework.LogError("005", "The value should be negative, is " + MathF.Log(var).ToString()); + retVal = false; + } + } + catch (Exception e) + { + TestLibrary.TestFramework.LogError("006", "Unexpected exception occurs: " + e); + retVal = false; + } + + return retVal; + } + + public bool PosTest3() + { + bool retVal = true; + TestLibrary.TestFramework.BeginScenario("PosTest3: Verify the value of ln(1) is 0..."); + + try + { + float var = 1; + if (!MathFTestLib.SingleIsWithinEpsilon(MathF.Log(var), 0)) + { + TestLibrary.TestFramework.LogError("007", "The value of ln(1) should be zero, is " + MathF.Log(var).ToString()); + retVal = false; + } + } + catch (Exception e) + { + TestLibrary.TestFramework.LogError("008", "Unexpected exception occurs: " + e); + retVal = false; + } + + return retVal; + } + + public bool PosTest4() + { + bool retVal = true; + TestLibrary.TestFramework.BeginScenario("PosTest4: Verify the value of ln(var) is larger than zero..."); + + try + { + float var = TestLibrary.Generator.GetSingle(-55); + while (var <= 1) + { + var *= 10; + } + + if (MathF.Log(var) < 0) + { + TestLibrary.TestFramework.LogError("009", "The value should be larger than zero, is " + MathF.Log(var).ToString()); + retVal = false; + } + } + catch (Exception e) + { + TestLibrary.TestFramework.LogError("010", "Unexpected exception occurs: " + e); + retVal = false; + } + + return retVal; + } + + public bool PosTest5() + { + bool retVal = true; + TestLibrary.TestFramework.BeginScenario("PosTest5: Verify the value of ln(0)..."); + + try + { + float var = 0; + if (!float.IsNegativeInfinity(MathF.Log(var))) + { + TestLibrary.TestFramework.LogError("011", "the value of ln(0) should be negativeInfinity, is " + + MathF.Log(var).ToString()); + retVal = false; + } + } + catch (Exception e) + { + TestLibrary.TestFramework.LogError("012", "Unexpected exception occurs: " + e); + retVal = false; + } + + return retVal; + } + + public bool PosTest6() + { + bool retVal = true; + TestLibrary.TestFramework.BeginScenario("PosTest6: Verify the value of ln(var) when var is negative..."); + + try + { + float var = -TestLibrary.Generator.GetSingle(-55); + while (var >= 0) + { + var = TestLibrary.Generator.GetSingle(-55); + } + + if (!float.IsNaN(MathF.Log(var))) + { + TestLibrary.TestFramework.LogError("013", "The value should be NaN, is " + MathF.Log(var).ToString()); + retVal = false; + } + } + catch (Exception e) + { + TestLibrary.TestFramework.LogError("014", "Unexpected exception occurs: " + e); + retVal = false; + } + + return retVal; + } + + public bool PosTest7() + { + bool retVal = true; + TestLibrary.TestFramework.BeginScenario("PosTest7: Verify the value of ln(e)..."); + + try + { + float var = MathF.E; + if (!MathFTestLib.SingleIsWithinEpsilon(MathF.Log(var), 1)) + { + TestLibrary.TestFramework.LogError("015", "The value should be equal to 1, is " + MathF.Log(var).ToString()); + retVal = false; + } + } + catch (Exception e) + { + TestLibrary.TestFramework.LogError("016", "Unexpected exception occurs: " + e); + retVal = false; + } + + return retVal; + } +} |