using System;
using System.Collections;
using NUnit.Framework.Constraints;
namespace NUnit.Framework.Tests
{
/// <summary>
/// This test fixture attempts to exercise all the syntactic
/// variations of Assert without getting into failures, errors
/// or corner cases. Thus, some of the tests may be duplicated
/// in other fixtures.
///
/// Each test performs the same operations using the classic
/// syntax (if available) and the new syntax in both the
/// helper-based and inherited forms.
///
/// This Fixture will eventually be duplicated in other
/// supported languages.
/// </summary>
[TestFixture]
public class AssertSyntaxTests : AssertionHelper
{
#region Simple Constraint Tests
[Test]
public void IsNull()
{
object nada = null;
// Classic syntax
Assert.IsNull(nada);
// Constraint Syntax
Assert.That(nada, Is.Null);
// Inherited syntax
Expect(nada, Null);
}
[Test]
public void IsNotNull()
{
// Classic syntax
Assert.IsNotNull(42);
// Constraint Syntax
Assert.That(42, Is.Not.Null);
// Inherited syntax
Expect( 42, Not.Null );
}
[Test]
public void IsTrue()
{
// Classic syntax
Assert.IsTrue(2+2==4);
// Constraint Syntax
Assert.That(2+2==4, Is.True);
Assert.That(2+2==4);
// Inherited syntax
Expect(2+2==4, True);
Expect(2+2==4);
}
[Test]
public void IsFalse()
{
// Classic syntax
Assert.IsFalse(2+2==5);
// Constraint Syntax
Assert.That(2+2== 5, Is.False);
// Inherited syntax
Expect(2+2==5, False);
}
[Test]
public void IsNaN()
{
double d = double.NaN;
float f = float.NaN;
// Classic syntax
Assert.IsNaN(d);
Assert.IsNaN(f);
// Constraint Syntax
Assert.That(d, Is.NaN);
Assert.That(f, Is.NaN);
// Inherited syntax
Expect(d, NaN);
Expect(f, NaN);
}
[Test]
public void EmptyStringTests()
{
// Classic syntax
Assert.IsEmpty("");
Assert.IsNotEmpty("Hello!");
// Constraint Syntax
Assert.That("", Is.Empty);
Assert.That("Hello!", Is.Not.Empty);
// Inherited syntax
Expect("", Empty);
Expect("Hello!", Not.Empty);
}
[Test]
public void EmptyCollectionTests()
{
// Classic syntax
Assert.IsEmpty(new bool[0]);
Assert.IsNotEmpty(new int[] { 1, 2, 3 });
// Constraint Syntax
Assert.That(new bool[0], Is.Empty);
Assert.That(new int[] { 1, 2, 3 }, Is.Not.Empty);
// Inherited syntax
Expect(new bool[0], Empty);
Expect(new int[] { 1, 2, 3 }, Not.Empty);
}
#endregion
#region TypeConstraint Tests
[Test]
public void ExactTypeTests()
{
// Classic syntax workarounds
Assert.AreEqual(typeof(string), "Hello".GetType());
Assert.AreEqual("System.String", "Hello".GetType().FullName);
Assert.AreNotEqual(typeof(int), "Hello".GetType());
Assert.AreNotEqual("System.Int32", "Hello".GetType().FullName);
// Constraint Syntax
Assert.That("Hello", Is.TypeOf(typeof(string)));
Assert.That("Hello", Is.Not.TypeOf(typeof(int)));
// Inherited syntax
Expect( "Hello", TypeOf(typeof(string)));
Expect( "Hello", Not.TypeOf(typeof(int)));
}
[Test]
public void InstanceOfTests()
{
// Classic syntax
Assert.IsInstanceOf(typeof(string), "Hello");
Assert.IsNotInstanceOf(typeof(string), 5);
// Constraint Syntax
Assert.That("Hello", Is.InstanceOf(typeof(string)));
Assert.That(5, Is.Not.InstanceOf(typeof(string)));
// Inherited syntax
Expect("Hello", InstanceOf(typeof(string)));
Expect(5, Not.InstanceOf(typeof(string)));
}
[Test]
public void AssignableFromTypeTests()
{
// Classic syntax
Assert.IsAssignableFrom(typeof(string), "Hello");
Assert.IsNotAssignableFrom(typeof(string), 5);
// Constraint Syntax
Assert.That( "Hello", Is.AssignableFrom(typeof(string)));
Assert.That( 5, Is.Not.AssignableFrom(typeof(string)));
// Inherited syntax
Expect( "Hello", AssignableFrom(typeof(string)));
Expect( 5, Not.AssignableFrom(typeof(string)));
}
#endregion
#region StringConstraint Tests
[Test]
public void SubstringTests()
{
string phrase = "Hello World!";
string[] array = new string[] { "abc", "bad", "dba" };
// Classic Syntax
StringAssert.Contains("World", phrase);
// Constraint Syntax
Assert.That(phrase, Does.Contain("World"));
// Only available using new syntax
Assert.That(phrase, Does.Not.Contain("goodbye"));
Assert.That(phrase, Does.Contain("WORLD").IgnoreCase);
Assert.That(phrase, Does.Not.Contain("BYE").IgnoreCase);
Assert.That(array, Is.All.Contains( "b" ) );
// Inherited syntax
Expect(phrase, Contains("World"));
// Only available using new syntax
Expect(phrase, Not.Contains("goodbye"));
Expect(phrase, Contains("WORLD").IgnoreCase);
Expect(phrase, Not.Contains("BYE").IgnoreCase);
Expect(array, All.Contains("b"));
}
[Test]
public void StartsWithTests()
{
string phrase = "Hello World!";
string[] greetings = new string[] { "Hello!", "Hi!", "Hola!" };
// Classic syntax
StringAssert.StartsWith("Hello", phrase);
// Constraint Syntax
Assert.That(phrase, Does.StartWith("Hello"));
// Only available using new syntax
Assert.That(phrase, Does.Not.StartWith("Hi!"));
Assert.That(phrase, Does.StartWith("HeLLo").IgnoreCase);
Assert.That(phrase, Does.Not.StartWith("HI").IgnoreCase);
Assert.That(greetings, Is.All.StartsWith("h").IgnoreCase);
// Inherited syntax
Expect(phrase, StartsWith("Hello"));
// Only available using new syntax
Expect(phrase, Not.StartsWith("Hi!"));
Expect(phrase, StartsWith("HeLLo").IgnoreCase);
Expect(phrase, Not.StartsWith("HI").IgnoreCase);
Expect(greetings, All.StartsWith("h").IgnoreCase);
}
[Test]
public void EndsWithTests()
{
string phrase = "Hello World!";
string[] greetings = new string[] { "Hello!", "Hi!", "Hola!" };
// Classic Syntax
StringAssert.EndsWith("!", phrase);
// Constraint Syntax
Assert.That(phrase, Does.EndWith("!"));
// Only available using new syntax
Assert.That(phrase, Does.Not.EndWith("?"));
Assert.That(phrase, Does.EndWith("WORLD!").IgnoreCase);
Assert.That(greetings, Is.All.EndsWith("!"));
// Inherited syntax
Expect(phrase, EndsWith("!"));
// Only available using new syntax
Expect(phrase, Not.EndsWith("?"));
Expect(phrase, EndsWith("WORLD!").IgnoreCase);
Expect(greetings, All.EndsWith("!") );
}
[Test]
public void EqualIgnoringCaseTests()
{
string phrase = "Hello World!";
// Classic syntax
StringAssert.AreEqualIgnoringCase("hello world!",phrase);
// Constraint Syntax
Assert.That(phrase, Is.EqualTo("hello world!").IgnoreCase);
//Only available using new syntax
Assert.That(phrase, Is.Not.EqualTo("goodbye world!").IgnoreCase);
Assert.That(new string[] { "Hello", "World" },
Is.EqualTo(new object[] { "HELLO", "WORLD" }).IgnoreCase);
Assert.That(new string[] {"HELLO", "Hello", "hello" },
Is.All.EqualTo( "hello" ).IgnoreCase);
// Inherited syntax
Expect(phrase, EqualTo("hello world!").IgnoreCase);
//Only available using new syntax
Expect(phrase, Not.EqualTo("goodbye world!").IgnoreCase);
Expect(new string[] { "Hello", "World" },
EqualTo(new object[] { "HELLO", "WORLD" }).IgnoreCase);
Expect(new string[] {"HELLO", "Hello", "hello" },
All.EqualTo( "hello" ).IgnoreCase);
}
[Test]
public void RegularExpressionTests()
{
string phrase = "Now is the time for all good men to come to the aid of their country.";
string[] quotes = new string[] { "Never say never", "It's never too late", "Nevermore!" };
// Classic syntax
StringAssert.IsMatch( "all good men", phrase );
StringAssert.IsMatch( "Now.*come", phrase );
// Constraint Syntax
Assert.That( phrase, Does.Match( "all good men" ) );
Assert.That( phrase, Does.Match( "Now.*come" ) );
// Only available using new syntax
Assert.That(phrase, Does.Not.Match("all.*men.*good"));
Assert.That(phrase, Does.Match("ALL").IgnoreCase);
Assert.That(quotes, Is.All.Matches("never").IgnoreCase);
// Inherited syntax
Expect( phrase, Matches( "all good men" ) );
Expect( phrase, Matches( "Now.*come" ) );
// Only available using new syntax
Expect(phrase, Not.Matches("all.*men.*good"));
Expect(phrase, Matches("ALL").IgnoreCase);
Expect(quotes, All.Matches("never").IgnoreCase);
}
#endregion
#region Equality Tests
[Test]
public void EqualityTests()
{
int[] i3 = new int[] { 1, 2, 3 };
double[] d3 = new double[] { 1.0, 2.0, 3.0 };
int[] iunequal = new int[] { 1, 3, 2 };
// Classic Syntax
Assert.AreEqual(4, 2 + 2);
Assert.AreEqual(i3, d3);
Assert.AreNotEqual(5, 2 + 2);
Assert.AreNotEqual(i3, iunequal);
// Constraint Syntax
Assert.That(2 + 2, Is.EqualTo(4));
Assert.That(2 + 2 == 4);
Assert.That(i3, Is.EqualTo(d3));
Assert.That(2 + 2, Is.Not.EqualTo(5));
Assert.That(i3, Is.Not.EqualTo(iunequal));
// Inherited syntax
Expect(2 + 2, EqualTo(4));
Expect(2 + 2 == 4);
Expect(i3, EqualTo(d3));
Expect(2 + 2, Not.EqualTo(5));
Expect(i3, Not.EqualTo(iunequal));
}
[Test]
public void EqualityTestsWithTolerance()
{
// CLassic syntax
Assert.AreEqual(5.0d, 4.99d, 0.05d);
Assert.AreEqual(5.0f, 4.99f, 0.05f);
// Constraint Syntax
Assert.That(4.99d, Is.EqualTo(5.0d).Within(0.05d));
Assert.That(4.0d, Is.Not.EqualTo(5.0d).Within(0.5d));
Assert.That(4.99f, Is.EqualTo(5.0f).Within(0.05f));
Assert.That(4.99m, Is.EqualTo(5.0m).Within(0.05m));
Assert.That(3999999999u, Is.EqualTo(4000000000u).Within(5u));
Assert.That(499, Is.EqualTo(500).Within(5));
Assert.That(4999999999L, Is.EqualTo(5000000000L).Within(5L));
Assert.That(5999999999ul, Is.EqualTo(6000000000ul).Within(5ul));
// Inherited syntax
Expect(4.99d, EqualTo(5.0d).Within(0.05d));
Expect(4.0d, Not.EqualTo(5.0d).Within(0.5d));
Expect(4.99f, EqualTo(5.0f).Within(0.05f));
Expect(4.99m, EqualTo(5.0m).Within(0.05m));
Expect(499u, EqualTo(500u).Within(5u));
Expect(499, EqualTo(500).Within(5));
Expect(4999999999L, EqualTo(5000000000L).Within(5L));
Expect(5999999999ul, EqualTo(6000000000ul).Within(5ul));
}
[Test]
public void EqualityTestsWithTolerance_MixedFloatAndDouble()
{
// Bug Fix 1743844
Assert.That(2.20492d, Is.EqualTo(2.2d).Within(0.01f),
"Double actual, Double expected, Single tolerance");
Assert.That(2.20492d, Is.EqualTo(2.2f).Within(0.01d),
"Double actual, Single expected, Double tolerance" );
Assert.That(2.20492d, Is.EqualTo(2.2f).Within(0.01f),
"Double actual, Single expected, Single tolerance" );
Assert.That(2.20492f, Is.EqualTo(2.2f).Within(0.01d),
"Single actual, Single expected, Double tolerance");
Assert.That(2.20492f, Is.EqualTo(2.2d).Within(0.01d),
"Single actual, Double expected, Double tolerance");
Assert.That(2.20492f, Is.EqualTo(2.2d).Within(0.01f),
"Single actual, Double expected, Single tolerance");
}
[Test]
public void EqualityTestsWithTolerance_MixingTypesGenerally()
{
// Extending tolerance to all numeric types
Assert.That(202d, Is.EqualTo(200d).Within(2),
"Double actual, Double expected, int tolerance");
Assert.That( 4.87m, Is.EqualTo(5).Within(.25),
"Decimal actual, int expected, Double tolerance" );
Assert.That( 4.87m, Is.EqualTo(5ul).Within(1),
"Decimal actual, ulong expected, int tolerance" );
Assert.That( 487, Is.EqualTo(500).Within(25),
"int actual, int expected, int tolerance" );
Assert.That( 487u, Is.EqualTo(500).Within(25),
"uint actual, int expected, int tolerance" );
Assert.That( 487L, Is.EqualTo(500).Within(25),
"long actual, int expected, int tolerance" );
Assert.That( 487ul, Is.EqualTo(500).Within(25),
"ulong actual, int expected, int tolerance" );
}
#endregion
#region Comparison Tests
[Test]
public void ComparisonTests()
{
// Classic Syntax
Assert.Greater(7, 3);
Assert.GreaterOrEqual(7, 3);
Assert.GreaterOrEqual(7, 7);
// Constraint Syntax
Assert.That(7, Is.GreaterThan(3));
Assert.That(7, Is.GreaterThanOrEqualTo(3));
Assert.That(7, Is.AtLeast(3));
Assert.That(7, Is.GreaterThanOrEqualTo(7));
Assert.That(7, Is.AtLeast(7));
// Inherited syntax
Expect(7, GreaterThan(3));
Expect(7, GreaterThanOrEqualTo(3));
Expect(7, AtLeast(3));
Expect(7, GreaterThanOrEqualTo(7));
Expect(7, AtLeast(7));
// Classic syntax
Assert.Less(3, 7);
Assert.LessOrEqual(3, 7);
Assert.LessOrEqual(3, 3);
// Constraint Syntax
Assert.That(3, Is.LessThan(7));
Assert.That(3, Is.LessThanOrEqualTo(7));
Assert.That(3, Is.AtMost(7));
Assert.That(3, Is.LessThanOrEqualTo(3));
Assert.That(3, Is.AtMost(3));
// Inherited syntax
Expect(3, LessThan(7));
Expect(3, LessThanOrEqualTo(7));
Expect(3, AtMost(7));
Expect(3, LessThanOrEqualTo(3));
Expect(3, AtMost(3));
}
#endregion
#region Collection Tests
[Test]
public void AllItemsTests()
{
object[] ints = new object[] { 1, 2, 3, 4 };
object[] doubles = new object[] { 0.99, 2.1, 3.0, 4.05 };
object[] strings = new object[] { "abc", "bad", "cab", "bad", "dad" };
// Classic syntax
CollectionAssert.AllItemsAreNotNull(ints);
CollectionAssert.AllItemsAreInstancesOfType(ints, typeof(int));
CollectionAssert.AllItemsAreInstancesOfType(strings, typeof(string));
CollectionAssert.AllItemsAreUnique(ints);
// Constraint Syntax
Assert.That(ints, Is.All.Not.Null);
Assert.That(ints, Has.None.Null);
Assert.That(ints, Is.All.InstanceOf(typeof(int)));
Assert.That(ints, Has.All.InstanceOf(typeof(int)));
Assert.That(strings, Is.All.InstanceOf(typeof(string)));
Assert.That(strings, Has.All.InstanceOf(typeof(string)));
Assert.That(ints, Is.Unique);
// Only available using new syntax
Assert.That(strings, Is.Not.Unique);
Assert.That(ints, Is.All.GreaterThan(0));
Assert.That(ints, Has.All.GreaterThan(0));
Assert.That(ints, Has.None.LessThanOrEqualTo(0));
Assert.That(strings, Is.All.Contains( "a" ) );
Assert.That(strings, Has.All.Contains( "a" ) );
Assert.That(strings, Has.Some.StartsWith( "ba" ) );
Assert.That( strings, Has.Some.Property( "Length" ).EqualTo( 3 ) );
Assert.That( strings, Has.Some.StartsWith( "BA" ).IgnoreCase );
Assert.That( doubles, Has.Some.EqualTo( 1.0 ).Within( .05 ) );
// Inherited syntax
Expect(ints, All.Not.Null);
Expect(ints, None.Null);
Expect(ints, All.InstanceOf(typeof(int)));
Expect(strings, All.InstanceOf(typeof(string)));
Expect(ints, Unique);
// Only available using new syntax
Expect(strings, Not.Unique);
Expect(ints, All.GreaterThan(0));
Expect(ints, None.LessThanOrEqualTo(0));
Expect(strings, All.Contains( "a" ) );
Expect(strings, Some.StartsWith( "ba" ) );
Expect(strings, Some.StartsWith( "BA" ).IgnoreCase );
Expect(doubles, Some.EqualTo( 1.0 ).Within( .05 ) );
}
[Test]
public void SomeItemTests()
{
object[] mixed = new object[] { 1, 2, "3", null, "four", 100 };
object[] strings = new object[] { "abc", "bad", "cab", "bad", "dad" };
// Not available using the classic syntax
// Constraint Syntax
Assert.That(mixed, Has.Some.Null);
Assert.That(mixed, Has.Some.InstanceOf(typeof(int)));
Assert.That(mixed, Has.Some.InstanceOf(typeof(string)));
Assert.That(strings, Has.Some.StartsWith( "ba" ) );
Assert.That(strings, Has.Some.Not.StartsWith( "ba" ) );
// Inherited syntax
Expect(mixed, Some.Null);
Expect(mixed, Some.InstanceOf(typeof(int)));
Expect(mixed, Some.InstanceOf(typeof(string)));
Expect(strings, Some.StartsWith( "ba" ) );
Expect(strings, Some.Not.StartsWith( "ba" ) );
}
[Test]
public void NoItemTests()
{
object[] ints = new object[] { 1, 2, 3, 4, 5 };
object[] strings = new object[] { "abc", "bad", "cab", "bad", "dad" };
// Not available using the classic syntax
// Constraint Syntax
Assert.That(ints, Has.None.Null);
Assert.That(ints, Has.None.InstanceOf(typeof(string)));
Assert.That(ints, Has.None.GreaterThan(99));
Assert.That(strings, Has.None.StartsWith( "qu" ) );
// Inherited syntax
Expect(ints, None.Null);
Expect(ints, None.InstanceOf(typeof(string)));
Expect(ints, None.GreaterThan(99));
Expect(strings, None.StartsWith( "qu" ) );
}
[Test]
public void CollectionContainsTests()
{
int[] iarray = new int[] { 1, 2, 3 };
string[] sarray = new string[] { "a", "b", "c" };
// Classic syntax
Assert.Contains(3, iarray);
Assert.Contains("b", sarray);
CollectionAssert.Contains(iarray, 3);
CollectionAssert.Contains(sarray, "b");
CollectionAssert.DoesNotContain(sarray, "x");
// Showing that Contains uses NUnit equality
CollectionAssert.Contains( iarray, 1.0d );
// Constraint Syntax
Assert.That(iarray, Has.Member(3));
Assert.That(sarray, Has.Member("b"));
Assert.That(sarray, Has.No.Member("x"));
// Showing that Contains uses NUnit equality
Assert.That(iarray, Has.Member( 1.0d ));
// Only available using the new syntax
// Note that EqualTo and SameAs do NOT give
// identical results to Contains because
// Contains uses Object.Equals()
Assert.That(iarray, Has.Some.EqualTo(3));
Assert.That(iarray, Has.Member(3));
Assert.That(sarray, Has.Some.EqualTo("b"));
Assert.That(sarray, Has.None.EqualTo("x"));
Assert.That(iarray, Has.None.SameAs( 1.0d ));
Assert.That(iarray, Has.All.LessThan(10));
Assert.That(sarray, Has.All.Length.EqualTo(1));
Assert.That(sarray, Has.None.Property("Length").GreaterThan(3));
// Inherited syntax
Expect(iarray, Contains(3));
Expect(sarray, Contains("b"));
Expect(sarray, Not.Contains("x"));
// Only available using new syntax
// Note that EqualTo and SameAs do NOT give
// identical results to Contains because
// Contains uses Object.Equals()
Expect(iarray, Some.EqualTo(3));
Expect(sarray, Some.EqualTo("b"));
Expect(sarray, None.EqualTo("x"));
Expect(iarray, All.LessThan(10));
Expect(sarray, All.Length.EqualTo(1));
Expect(sarray, None.Property("Length").GreaterThan(3));
}
[Test]
public void CollectionEquivalenceTests()
{
int[] ints1to5 = new int[] { 1, 2, 3, 4, 5 };
int[] twothrees = new int[] { 1, 2, 3, 3, 4, 5 };
int[] twofours = new int[] { 1, 2, 3, 4, 4, 5 };
// Classic syntax
CollectionAssert.AreEquivalent(new int[] { 2, 1, 4, 3, 5 }, ints1to5);
CollectionAssert.AreNotEquivalent(new int[] { 2, 2, 4, 3, 5 }, ints1to5);
CollectionAssert.AreNotEquivalent(new int[] { 2, 4, 3, 5 }, ints1to5);
CollectionAssert.AreNotEquivalent(new int[] { 2, 2, 1, 1, 4, 3, 5 }, ints1to5);
CollectionAssert.AreNotEquivalent(twothrees, twofours);
// Constraint Syntax
Assert.That(new int[] { 2, 1, 4, 3, 5 }, Is.EquivalentTo(ints1to5));
Assert.That(new int[] { 2, 2, 4, 3, 5 }, Is.Not.EquivalentTo(ints1to5));
Assert.That(new int[] { 2, 4, 3, 5 }, Is.Not.EquivalentTo(ints1to5));
Assert.That(new int[] { 2, 2, 1, 1, 4, 3, 5 }, Is.Not.EquivalentTo(ints1to5));
// Inherited syntax
Expect(new int[] { 2, 1, 4, 3, 5 }, EquivalentTo(ints1to5));
Expect(new int[] { 2, 2, 4, 3, 5 }, Not.EquivalentTo(ints1to5));
Expect(new int[] { 2, 4, 3, 5 }, Not.EquivalentTo(ints1to5));
Expect(new int[] { 2, 2, 1, 1, 4, 3, 5 }, Not.EquivalentTo(ints1to5));
}
[Test]
public void SubsetTests()
{
int[] ints1to5 = new int[] { 1, 2, 3, 4, 5 };
// Classic syntax
CollectionAssert.IsSubsetOf(new int[] { 1, 3, 5 }, ints1to5);
CollectionAssert.IsSubsetOf(new int[] { 1, 2, 3, 4, 5 }, ints1to5);
CollectionAssert.IsNotSubsetOf(new int[] { 2, 4, 6 }, ints1to5);
CollectionAssert.IsNotSubsetOf(new int[] { 1, 2, 2, 2, 5 }, ints1to5);
// Constraint Syntax
Assert.That(new int[] { 1, 3, 5 }, Is.SubsetOf(ints1to5));
Assert.That(new int[] { 1, 2, 3, 4, 5 }, Is.SubsetOf(ints1to5));
Assert.That(new int[] { 2, 4, 6 }, Is.Not.SubsetOf(ints1to5));
// Inherited syntax
Expect(new int[] { 1, 3, 5 }, SubsetOf(ints1to5));
Expect(new int[] { 1, 2, 3, 4, 5 }, SubsetOf(ints1to5));
Expect(new int[] { 2, 4, 6 }, Not.SubsetOf(ints1to5));
}
#endregion
#region Property Tests
[Test]
public void PropertyTests()
{
string[] array = { "abc", "bca", "xyz", "qrs" };
string[] array2 = { "a", "ab", "abc" };
ArrayList list = new ArrayList( array );
// Not available using the classic syntax
// Constraint Syntax
Assert.That( list, Has.Property( "Count" ) );
Assert.That( list, Has.No.Property( "Length" ) );
Assert.That( "Hello", Has.Length.EqualTo( 5 ) );
Assert.That( "Hello", Has.Length.LessThan( 10 ) );
Assert.That( "Hello", Has.Property("Length").EqualTo(5) );
Assert.That( "Hello", Has.Property("Length").GreaterThan(3) );
Assert.That( array, Has.Property( "Length" ).EqualTo( 4 ) );
Assert.That( array, Has.Length.EqualTo( 4 ) );
Assert.That( array, Has.Property( "Length" ).LessThan( 10 ) );
Assert.That( array, Has.All.Property("Length").EqualTo(3) );
Assert.That( array, Has.All.Length.EqualTo( 3 ) );
Assert.That( array, Is.All.Length.EqualTo( 3 ) );
Assert.That( array, Has.All.Property("Length").EqualTo(3) );
Assert.That( array, Is.All.Property("Length").EqualTo(3) );
Assert.That( array2, Has.Some.Property("Length").EqualTo(2) );
Assert.That( array2, Has.Some.Length.EqualTo(2) );
Assert.That( array2, Has.Some.Property("Length").GreaterThan(2) );
Assert.That( array2, Is.Not.Property("Length").EqualTo(4) );
Assert.That( array2, Is.Not.Length.EqualTo( 4 ) );
Assert.That( array2, Has.No.Property("Length").GreaterThan(3) );
Assert.That( List.Map( array2 ).Property("Length"), Is.EqualTo( new int[] { 1, 2, 3 } ) );
Assert.That( List.Map( array2 ).Property("Length"), Is.EquivalentTo( new int[] { 3, 2, 1 } ) );
Assert.That( List.Map( array2 ).Property("Length"), Is.SubsetOf( new int[] { 1, 2, 3, 4, 5 } ) );
Assert.That( List.Map( array2 ).Property("Length"), Is.Unique );
Assert.That( list, Has.Count.EqualTo( 4 ) );
// Inherited syntax
Expect( list, Property( "Count" ) );
Expect( list, Not.Property( "Nada" ) );
Expect( "Hello", Length.EqualTo( 5 ) );
Expect( "Hello", Property("Length").EqualTo(5) );
Expect( "Hello", Property("Length").GreaterThan(0) );
Expect( array, Property("Length").EqualTo(4) );
Expect( array, Length.EqualTo(4) );
Expect( array, Property("Length").LessThan(10));
Expect( array, All.Length.EqualTo( 3 ) );
Expect( array, All.Property("Length").EqualTo(3));
Expect( array2, Some.Property("Length").EqualTo(2) );
Expect( array2, Some.Length.EqualTo( 2 ) );
Expect( array2, Some.Property("Length").GreaterThan(2));
Expect( array2, None.Property("Length").EqualTo(4) );
Expect( array2, None.Length.EqualTo( 4 ) );
Expect( array2, None.Property("Length").GreaterThan(3));
Expect( Map( array2 ).Property("Length"), EqualTo( new int[] { 1, 2, 3 } ) );
Expect( Map( array2 ).Property("Length"), EquivalentTo( new int[] { 3, 2, 1 } ) );
Expect( Map( array2 ).Property("Length"), SubsetOf( new int[] { 1, 2, 3, 4, 5 } ) );
Expect( Map( array2 ).Property("Length"), Unique );
Expect( list, Count.EqualTo( 4 ) );
}
#endregion
#region Not Tests
[Test]
public void NotTests()
{
// Not available using the classic syntax
// Constraint Syntax
Assert.That(42, Is.Not.Null);
Assert.That(42, Is.Not.True);
Assert.That(42, Is.Not.False);
Assert.That(2.5, Is.Not.NaN);
Assert.That(2 + 2, Is.Not.EqualTo(3));
Assert.That(2 + 2, Is.Not.Not.EqualTo(4));
Assert.That(2 + 2, Is.Not.Not.Not.EqualTo(5));
// Inherited syntax
Expect(42, Not.Null);
Expect(42, Not.True);
Expect(42, Not.False);
Expect(2.5, Not.NaN);
Expect(2 + 2, Not.EqualTo(3));
Expect(2 + 2, Not.Not.EqualTo(4));
Expect(2 + 2, Not.Not.Not.EqualTo(5));
}
#endregion
#region Operator Tests
[Test]
public void NotOperator()
{
// The ! operator is only available in the new syntax
Assert.That(42, !Is.Null);
// Inherited syntax
Expect( 42, !Null );
}
[Test]
public void AndOperator()
{
// The & operator is only available in the new syntax
Assert.That(7, Is.GreaterThan(5) & Is.LessThan(10));
// Inherited syntax
Expect( 7, GreaterThan(5) & LessThan(10));
}
[Test]
public void OrOperator()
{
// The | operator is only available in the new syntax
Assert.That(3, Is.LessThan(5) | Is.GreaterThan(10));
Expect( 3, LessThan(5) | GreaterThan(10));
}
[Test]
public void ComplexTests()
{
Assert.That(7, Is.Not.Null & Is.Not.LessThan(5) & Is.Not.GreaterThan(10));
Expect(7, Not.Null & Not.LessThan(5) & Not.GreaterThan(10));
Assert.That(7, !Is.Null & !Is.LessThan(5) & !Is.GreaterThan(10));
Expect(7, !Null & !LessThan(5) & !GreaterThan(10));
// No longer works at all under 3.0
// TODO: Evaluate why we wanted to use null in this setting in the first place
#if false
// TODO: Remove #if when mono compiler can handle null
#if MONO
Constraint x = null;
Assert.That(7, !x & !Is.LessThan(5) & !Is.GreaterThan(10));
Expect(7, !x & !LessThan(5) & !GreaterThan(10));
#else
Assert.That(7, !(Constraint)null & !Is.LessThan(5) & !Is.GreaterThan(10));
Expect(7, !(Constraint)null & !LessThan(5) & !GreaterThan(10));
#endif
#endif
}
#endregion
#region Invalid Code Tests
// This method contains assertions that should not compile
// You can check by uncommenting it.
//public void WillNotCompile()
//{
// Assert.That(42, Is.Not);
// Assert.That(42, Is.All);
// Assert.That(42, Is.Null.Not);
// Assert.That(42, Is.Not.Null.GreaterThan(10));
// Assert.That(42, Is.GreaterThan(10).LessThan(99));
// object[] c = new object[0];
// Assert.That(c, Is.Null.All);
// Assert.That(c, Is.Not.All);
// Assert.That(c, Is.All.Not);
//}
#endregion
}
}
