public void Given_a_non_negative_input_When_WithTotal_is_called_Then_Current_should_equal_input()
{
// Arrange.
var input = 1;
var builder = PagedEnumerableCountBuilder.Create();
// Act.
builder = builder.WithTotal(input);
// Assert.
builder.Total.Should().Be(input);
}
/// <summary>
/// Creates a well formed <see cref="PagedEnumerableCount"/> object that can be used without throwing exceptions.
/// </summary>
/// <returns>A well formed <see cref="PagedEnumerableCount"/> object.</returns>
internal static PagedEnumerableCount WellFormed()
{
PagedEnumerableCount count;
count = PagedEnumerableCountBuilder.Create()
.WithCountSkipped(1)
.WithCurrent(1)
.WithTotal(2)
.Build();
return(count);
}
public void Given_a_null_builder_When_Create_is_called_Then_an_AgrumentNullException_should_be_thrown()
{
// Arrange.
PagedEnumerableCountBuilder builder = null;
// Act.
Action testCode = () => PagedEnumerableCount.Create(builder);
// Assert.
testCode.Should()
.Throw <ArgumentNullException>()
.WithMessage("*cannot be null*builder*");
}
public void Given_no_inputs_When_Create_is_called_Then_defaults_are_correct()
{
// Arrange.
PagedEnumerableCountBuilder builder;
// Act.
builder = PagedEnumerableCountBuilder.Create();
// Assert.
builder.Current.Should().Be(0);
builder.Total.Should().Be(0);
builder.CountSkipped.Should().Be(0);
}
public void Given_a_negative_input_When_WithCountSkipped_is_called_Then_an_ArgumentOutOfRangeException_should_be_thrown()
{
// Arrange.
var input = -1;
var builder = PagedEnumerableCountBuilder.Create();
// Act.
Action testCode = () => builder.WithCountSkipped(input);
// Assert.
testCode.Should()
.Throw <ArgumentOutOfRangeException>()
.WithMessage($"Argument cannot be negative*Parameter name: countSkipped*Actual value was {input}.");
}
public void Given_well_formed_inputs_When_Build_is_called_Then_a_matching_PagedEnumerableCount_should_be_created()
{
// Arrange.
int countSkipped = 1;
int current = 2;
int total = 3;
PagedEnumerableCount count;
// Act.
count = PagedEnumerableCountBuilder
.Create()
.WithCurrent(current)
.WithTotal(total)
.WithCountSkipped(countSkipped)
.Build();
// Assert.
count.Current.Should().Be(current);
count.Total.Should().Be(total);
count.Skipped.Should().Be(countSkipped);
}
public void Given_valid_input_When_WithCount_is_called_Then_Count_will_be_set()
{
// Arrange.
PagedEnumerableCount validInput;
validInput = PagedEnumerableCountBuilder.Create()
.WithCountSkipped(1)
.WithCurrent(10)
.WithTotal(100)
.Build();
PagedEnumerableMetadataBuilder builder = PagedEnumerableMetadataBuilder.Create();
PagedEnumerableMetadata metadata;
// Act.
metadata = builder.WithCount(validInput)
.Build();
// Assert.
metadata.Count.Should()
.BeEquivalentTo(validInput);
}
