public void IEnumerableExtensions_AllEqual_DefaultComparator_ValueTypes()
{
// Test case 1: same values
// Act + Assert
int[] sameValues = new[] { 1, 1, 1, 1, 1, 1, 1, 1 };
IEnumerableExtensions.AllEqual(sameValues).Should().BeTrue("Expected same values to be AllEqual");
// Test case 2: mixed values
// Act + Assert
int[] mixedValues = new[] { 1, 1, 1, 42, 1, 1, 1 };
IEnumerableExtensions.AllEqual(mixedValues).Should().BeFalse("Expected mixed values NOT to be AllEqual");
}
public void IEnumerableExtensions_AllEqual_DefaultComparator_ValueTypes()
{
// Test case 1: same values
// Act + Verify
int[] sameValues = new[] { 1, 1, 1, 1, 1, 1, 1, 1 };
Assert.IsTrue(IEnumerableExtensions.AllEqual(sameValues), "Expected same values to be AllEqual");
// Test case 2: mixed values
// Act + Verify
int[] mixedValues = new[] { 1, 1, 1, 42, 1, 1, 1 };
Assert.IsFalse(IEnumerableExtensions.AllEqual(mixedValues), "Expected mixed values NOT to be AllEqual");
}
public void IEnumerableExtensions_AllEqual_DefaultComparator_ReferenceTypes()
{
// Arrange
var objA = new object();
var objB = new object();
// Test case 1: same instances
// Act + Assert
object[] sameInstances = new[] { objA, objA, objA, objA, objA };
IEnumerableExtensions.AllEqual(sameInstances).Should().BeTrue("Expected same instances to be AllEqual");
// Test case 2: mixed instances
// Act + Assert
object[] mixedInstances = new[] { objA, objB, objB, objA, objB };
IEnumerableExtensions.AllEqual(mixedInstances).Should().BeFalse("Expected mixed instances NOT to be AllEqual");
}
public void IEnumerableExtensions_AllEqual_DefaultComparator_ReferenceTypes()
{
// Setup
var objA = new object();
var objB = new object();
// Test case 1: same instances
// Act + Verify
object[] sameInstances = new[] { objA, objA, objA, objA, objA };
Assert.IsTrue(IEnumerableExtensions.AllEqual(sameInstances), "Expected same instances to be AllEqual");
// Test case 2: mixed instances
// Act + Verify
object[] mixedInstances = new[] { objA, objB, objB, objA, objB };
Assert.IsFalse(IEnumerableExtensions.AllEqual(mixedInstances), "Expected mixed instances NOT to be AllEqual");
}
public void IEnumerableExtensions_AllEqual_CustomComparator()
{
// Arrange
var str1a = "mIxEdCaSeStRiNg";
var str1b = "MiXeDcAsEsTrInG";
var str2 = "another-string";
// Test case 1: comparator equal
// Act + Assert
IEnumerableExtensions.AllEqual(new[] { str1a, str1b }, StringComparer.OrdinalIgnoreCase).Should().BeTrue("Expected to be AllEqual");
// Test case 2: comparator not equal
// Act + Assert
IEnumerableExtensions.AllEqual(new[] { str1a, str1b }, StringComparer.Ordinal).Should().BeFalse("Expected to NOT be AllEqual");
// Test case 3: values different
// Act + Assert
IEnumerableExtensions.AllEqual(new[] { str1a, str2 }, StringComparer.OrdinalIgnoreCase).Should().BeFalse("Expected to NOT be AllEqual");
}
public void IEnumerableExtensions_AllEqual_Empty_IsTrue()
{
// Act + Assert
IEnumerableExtensions.AllEqual(new int[0]).Should().BeTrue("Expected empty enumerable to be AllEqual");
}
public void IEnumerableExtensions_AllEqual_NullArgChecks()
{
Exceptions.Expect <ArgumentNullException>(() => IEnumerableExtensions.AllEqual(null, EqualityComparer <object> .Default));
Exceptions.Expect <ArgumentNullException>(() => IEnumerableExtensions.AllEqual(new object[0], null));
}
public void IEnumerableExtensions_AllEqual_Empty_IsTrue()
{
// Act + Verify
Assert.IsTrue(IEnumerableExtensions.AllEqual(new int[0]), "Expected empty enumerable to be AllEqual");
}
