/
Date_span_specs.cs
294 lines (259 loc) · 9.69 KB
/
Date_span_specs.cs
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using FluentAssertions.Extensions;
namespace Date_span_specs;
public class Is_comparable
{
[Test]
public void to_null_is_1() => Svo.DateSpan.CompareTo(Nil.Object).Should().Be(1);
}
public class Is_valid
{
[TestCase("23Y+0M+0D", "Without starting sign")]
[TestCase("+9998Y+0M+0D", "A lot of years")]
[TestCase("-9998Y+0M+0D", "A lot of years")]
[TestCase("0Y+100000M+1D", "A lot of months")]
[TestCase("0Y-100000M+1D", "A lot of months")]
[TestCase("0Y+0M+3650000D", "A lot of days")]
[TestCase("0Y+0M-3650000D", "A lot of days")]
public void For(string str, string because)
=> DateSpan.TryParse(str).Should().NotBeNull(because);
}
public class Is_invalid
{
[Test]
public void for_empty_string() => DateSpan.TryParse(string.Empty).Should().BeNull();
[Test]
public void for_null() => DateSpan.TryParse(Nil.String).Should().BeNull();
[TestCase("+9999Y+0M+0D", "Years out of reach")]
[TestCase("-9999Y+0M+0D", "Years out of reach")]
[TestCase("0Y+0M+4650000D", "Days out of reach")]
[TestCase("0Y+0M-4650000D", "Days out of reach")]
[TestCase("Not a date span", "Garbage")]
public void For(string str, string because)
=> DateSpan.TryParse(str).Should().BeNull(because);
}
public class Supports_type_conversion
{
[Test]
public void via_TypeConverter_registered_with_attribute()
=> typeof(DateSpan).Should().HaveTypeConverterDefined();
[Test]
public void from_string()
{
using (TestCultures.en_GB.Scoped())
{
Converting.From("10Y+3M-5D").To<DateSpan>().Should().Be(Svo.DateSpan);
}
}
[Test]
public void to_string()
{
using (TestCultures.en_GB.Scoped())
{
Converting.ToString().From(Svo.DateSpan).Should().Be("10Y+3M-5D");
}
}
}
public class Supports_JSON_serialization
{
#if NET6_0_OR_GREATER
[TestCase(null, "0Y+0M+0D")]
[TestCase(0L, "0Y+0M+0D")]
[TestCase("0Y+0M+0D", "0Y+0M+0D")]
[TestCase("1Y+8M+3D", "1Y+8M+3D")]
public void System_Text_JSON_deserialization(object json, DateSpan svo)
=> JsonTester.Read_System_Text_JSON<DateSpan>(json).Should().Be(svo);
[TestCase("1Y+8M+3D", "1Y+8M+3D")]
public void System_Text_JSON_serialization(DateSpan svo, object json)
=> JsonTester.Write_System_Text_JSON(svo).Should().Be(json);
#endif
[TestCase(0L, "0Y+0M+0D")]
[TestCase("0Y+0M+0D", "0Y+0M+0D")]
[TestCase("1Y+8M+3D", "1Y+8M+3D")]
public void convention_based_deserialization(object json, DateSpan svo)
=> JsonTester.Read<DateSpan>(json).Should().Be(svo);
[TestCase("1Y+8M+3D", "1Y+8M+3D")]
public void convention_based_serialization(DateSpan svo, object json)
=> JsonTester.Write(svo).Should().Be(json);
[TestCase("Invalid input", typeof(FormatException))]
[TestCase("2017-06-11", typeof(FormatException))]
[TestCase(true, typeof(InvalidOperationException))]
public void throws_for_invalid_json(object json, Type exceptionType)
=> json
.Invoking(JsonTester.Read<DateSpan>)
.Should().Throw<Exception>()
.And.Should().BeOfType(exceptionType);
}
#if NET8_0_OR_GREATER
#else
public class Supports_binary_serialization
{
[Test]
[Obsolete("Usage of the binary formatter is considered harmful.")]
public void using_BinaryFormatter()
=> SerializeDeserialize.Binary(Svo.DateSpan).Should().Be(Svo.DateSpan);
[Test]
public void storing_string_in_SerializationInfo()
=> Serialize.GetInfo(Svo.DateSpan).GetUInt64("Value").Should().Be(532575944699UL);
}
#endif
public class Is_Open_API_data_type
{
[Test]
public void with_info()
=> OpenApiDataType.FromType(typeof(DateSpan))
.Should().Be(new OpenApiDataType(
dataType: typeof(DateSpan),
description: "Date span, specified in years, months and days.",
example: "1Y+10M+16D",
type: "string",
format: "date-span",
pattern: @"[+-]?[0-9]+Y[+-][0-9]+M[+-][0-9]+D"));
}
public class Can_be_operated
{
[Test]
public void negate_negates_values()
{
var negated = -Svo.DateSpan;
negated.Should().Be(new DateSpan(-10, -3, +5));
}
[Test]
public void plus_does_nothing()
{
var plussed = +Svo.DateSpan;
plussed.Should().Be(Svo.DateSpan);
}
}
public class Can_be_added_to
{
[Test]
public void Date_times()
{
var date = 30.January(1999).At(13, 42).AsUtc();
date.Add(DateSpan.FromMonths(1)).Should().Be(28.February(1999).At(13, 42).AsUtc());
}
}
public class Can_create
{
[Test]
public void Age_form_date_without_months()
{
using (Clock.SetTimeForCurrentContext(() => new Date(2019, 10, 10)))
{
var age = DateSpan.Age(new Date(2017, 06, 11));
age.Should().Be(new DateSpan(years: 2, months: 0, days: 121));
}
}
#if NET6_0_OR_GREATER
[Test]
public void Age_form_date_only_without_months()
{
using (Clock.SetTimeForCurrentContext(() => new Date(2019, 10, 10)))
{
var age = DateSpan.Age(new DateOnly(2017, 06, 11));
age.Should().Be(new DateSpan(years: 2, months: 0, days: 121));
}
}
[Test]
public void Age_for_reference_date()
{
var age = DateSpan.Age(new DateOnly(2017, 06, 11), new DateOnly(2023, 11, 17));
age.Should().Be(new DateSpan(years: 6, months: 0, days: 159));
}
#endif
}
public class Can_add
{
[Test]
public void two_date_spans()
{
var l = new DateSpan(12, 3, 4);
var r = new DateSpan(-2, 2, 7);
(l + r).Should().Be(new DateSpan(10, 5, 11));
}
[Test]
public void days_to_date_span()
{
var span = new DateSpan(12, 3, 4);
span.AddDays(17).Should().Be(new DateSpan(12, 3, 21));
}
[Test]
public void months_to_date_span()
{
var span = new DateSpan(12, 3, 4);
span.AddMonths(17).Should().Be(new DateSpan(12, 20, 4));
}
[Test]
public void years_to_date_span()
{
var span = new DateSpan(12, 3, 4);
span.AddYears(17).Should().Be(new DateSpan(29, 3, 4));
}
}
public class Can_subtract
{
[Test]
public void two_date_spans()
{
var l = new DateSpan(12, 3, 4);
var r = new DateSpan(-2, 2, 7);
(l - r).Should().Be(new DateSpan(14, 1, -3));
}
[Test]
public void two_dates()
=> DateSpan.Subtract(new Date(2023, 11, 17), Svo.Date)
.Should().Be(new DateSpan(years: 6, months: 5, days: 6));
[TestCase(+0, +364, "2018-06-10", "2017-06-11", DateSpanSettings.DaysOnly)]
[TestCase(+0, -364, "2017-06-11", "2018-06-10", DateSpanSettings.DaysOnly)]
[TestCase(+11, +30, "2018-06-10", "2017-06-11", DateSpanSettings.Default)]
[TestCase(+12, -01, "2018-06-10", "2017-06-11", DateSpanSettings.MixedSigns)]
[TestCase(+15, +14, "2018-06-10", "2017-02-27", DateSpanSettings.Default)]
[TestCase(+15, +11, "2018-06-10", "2017-02-27", DateSpanSettings.DaysFirst)]
[TestCase(+24, +119, "2019-10-08", "2017-06-11", DateSpanSettings.WithoutMonths)]
[TestCase(+36, +120, "2020-10-08", "2017-06-11", DateSpanSettings.WithoutMonths)]
[TestCase(+12, +331, "2019-05-08", "2017-06-11", DateSpanSettings.WithoutMonths)]
[TestCase(+24, +332, "2020-05-08", "2017-06-11", DateSpanSettings.WithoutMonths)]
[TestCase(-11, -30, "2017-06-11", "2018-06-10", DateSpanSettings.Default)]
[TestCase(-12, +01, "2017-06-11", "2018-06-10", DateSpanSettings.MixedSigns)]
public void two_dates_based_on_settings(int months, int days, Date d1, Date d2, DateSpanSettings settings)
{
var expected = new DateSpan(0, months, days);
DateSpan.Subtract(d1, d2, settings).Should().Be(expected);
}
#if NET6_0_OR_GREATER
[Test]
public void two_date_onlys()
=> DateSpan.Subtract(new DateOnly(2023, 11, 17), Svo.DateOnly)
.Should().Be(new DateSpan(years: 6, months: 5, days: 6));
[TestCase(+0, +364, "2018-06-10", "2017-06-11", DateSpanSettings.DaysOnly)]
[TestCase(+0, -364, "2017-06-11", "2018-06-10", DateSpanSettings.DaysOnly)]
[TestCase(+11, +30, "2018-06-10", "2017-06-11", DateSpanSettings.Default)]
[TestCase(+12, -01, "2018-06-10", "2017-06-11", DateSpanSettings.MixedSigns)]
[TestCase(+15, +14, "2018-06-10", "2017-02-27", DateSpanSettings.Default)]
[TestCase(+15, +11, "2018-06-10", "2017-02-27", DateSpanSettings.DaysFirst)]
[TestCase(+24, +119, "2019-10-08", "2017-06-11", DateSpanSettings.WithoutMonths)]
[TestCase(+36, +120, "2020-10-08", "2017-06-11", DateSpanSettings.WithoutMonths)]
[TestCase(+12, +331, "2019-05-08", "2017-06-11", DateSpanSettings.WithoutMonths)]
[TestCase(+24, +332, "2020-05-08", "2017-06-11", DateSpanSettings.WithoutMonths)]
[TestCase(-11, -30, "2017-06-11", "2018-06-10", DateSpanSettings.Default)]
[TestCase(-12, +01, "2017-06-11", "2018-06-10", DateSpanSettings.MixedSigns)]
public void two_date_onlys_based_on_settings(int months, int days, Date d1, Date d2, DateSpanSettings settings)
{
var expected = new DateSpan(0, months, days);
DateSpan.Subtract((DateOnly)d1, (DateOnly)d2, settings).Should().Be(expected);
}
#endif
}
public class Throws_when
{
[Test]
public void Mutatation_overflows()
=> 1.Invoking(DateSpan.MaxValue.AddDays)
.Should().Throw<OverflowException>()
.WithMessage("DateSpan overflowed because the resulting duration is too long.");
[Test]
public void Ctor_arguments_are_out_of_range()
=> int.MaxValue.Invoking(n => new DateSpan(n, n))
.Should().Throw<ArgumentOutOfRangeException>()
.WithMessage("The specified years, months and days results in an un-representable DateSpan.");
}