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namespace NUnit.Framework
{
using System;
/// <summary>A set of Assert methods.</summary>
public class Assertion : MarshalByRefObject
{
/// <summary>
/// Protect constructor since it is a static only class
/// </summary>
protected Assertion():base(){}
/// <summary>
/// Asserts that a condition is true. If it isn't it throws
/// an <see cref="AssertionFailedError"/>.
/// </summary>
/// <param name="message">The message to display is the condition
/// is false</param>
/// <param name="condition">The evaluated condition</param>
static public void Assert(string message, bool condition)
{
if (!condition)
Assertion.Fail(message);
}
/// <summary>
/// Asserts that a condition is true. If it isn't it throws
/// an <see cref="AssertionFailedError"/>.
/// </summary>
/// <param name="condition">The evaluated condition</param>
static public void Assert(bool condition)
{
Assertion.Assert(string.Empty, condition);
}
/// <summary>
/// /// Asserts that two doubles are equal concerning a delta. If the
/// expected value is infinity then the delta value is ignored.
/// </summary>
/// <param name="expected">The expected value</param>
/// <param name="actual">The actual value</param>
/// <param name="delta">The maximum acceptable difference between the
/// the expected and the actual</param>
static public void AssertEquals(double expected, double actual, double delta)
{
Assertion.AssertEquals(string.Empty, expected, actual, delta);
}
/// <summary>
/// /// Asserts that two singles are equal concerning a delta. If the
/// expected value is infinity then the delta value is ignored.
/// </summary>
/// <param name="expected">The expected value</param>
/// <param name="actual">The actual value</param>
/// <param name="delta">The maximum acceptable difference between the
/// the expected and the actual</param>
static public void AssertEquals(float expected, float actual, float delta)
{
Assertion.AssertEquals(string.Empty, expected, actual, delta);
}
/// <summary>Asserts that two objects are equal. If they are not
/// an <see cref="AssertionFailedError"/> is thrown.</summary>
static public void AssertEquals(Object expected, Object actual)
{
Assertion.AssertEquals(string.Empty, expected, actual);
}
/// <summary>Asserts that two doubles are equal concerning a delta.
/// If the expected value is infinity then the delta value is ignored.
/// </summary>
static public void AssertEquals(string message, double expected,
double actual, double delta)
{
// handle infinity specially since subtracting two infinite values gives
// NaN and the following test fails
if (double.IsInfinity(expected))
{
if (!(expected == actual))
Assertion.FailNotEquals(message, expected, actual);
}
else if (!(Math.Abs(expected-actual) <= delta))
Assertion.FailNotEquals(message, expected, actual);
}
/// <summary>Asserts that two floats are equal concerning a delta.
/// If the expected value is infinity then the delta value is ignored.
/// </summary>
static public void AssertEquals(string message, float expected,
float actual, float delta)
{
// handle infinity specially since subtracting two infinite values gives
// NaN and the following test fails
if (float.IsInfinity(expected))
{
if (!(expected == actual))
Assertion.FailNotEquals(message, expected, actual);
}
else if (!(Math.Abs(expected-actual) <= delta))
Assertion.FailNotEquals(message, expected, actual);
}
/// <summary>Asserts that two objects are equal. If they are not
/// an <see cref="AssertionFailedError"/> is thrown.</summary>
static public void AssertEquals(string message, Object expected, Object actual)
{
if (expected == null && actual == null)
return;
if (expected != null && expected.Equals(actual))
return;
Assertion.FailNotEquals(message, expected, actual);
}
/// <summary>Asserts that an object isn't null.</summary>
static public void AssertNotNull(Object anObject)
{
Assertion.AssertNotNull(string.Empty, anObject);
}
/// <summary>Asserts that an object isn't null.</summary>
static public void AssertNotNull(string message, Object anObject)
{
Assertion.Assert(string.Empty, anObject != null);
}
/// <summary>Asserts that an object is null.</summary>
static public void AssertNull(Object anObject)
{
Assertion.AssertNull(string.Empty, anObject);
}
/// <summary>Asserts that an object is null.</summary>
static public void AssertNull(string message, Object anObject)
{
Assertion.Assert(message, anObject == null);
}
/// <summary>Asserts that two objects refer to the same object. If they
/// are not the same an <see cref="AssertionFailedError"/> is thrown.
/// </summary>
static public void AssertSame(Object expected, Object actual)
{
Assertion.AssertSame(string.Empty, expected, actual);
}
/// <summary>Asserts that two objects refer to the same object.
/// If they are not an <see cref="AssertionFailedError"/> is thrown.
/// </summary>
static public void AssertSame(string message, Object expected, Object actual)
{
if (expected == actual)
return;
Assertion.FailNotSame(message, expected, actual);
}
/// <summary>Fails a test with no message.</summary>
static public void Fail()
{
Assertion.Fail(string.Empty);
}
/// <summary>Fails a test with the given message.</summary>
static public void Fail(string message)
{
if (message == null)
message = string.Empty;
throw new AssertionFailedError(message);
}
static private void FailNotEquals(string message, Object expected, Object actual)
{
string formatted=string.Empty;
if (message != null)
formatted= message+" ";
Assertion.Fail(formatted+"expected:<"+expected+"> but was:<"+actual+">");
}
static private void FailNotSame(string message, Object expected, Object actual)
{
string formatted=string.Empty;
if (message != null)
formatted= message+" ";
Assertion.Fail(formatted+"expected same");
}
}
}
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