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Merged
andreise merged 1 commit into from
Apr 30, 2026
Merged

Implement SplitToFlatArray methods #85

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2 changes: 1 addition & 1 deletion src/flatcollections-array/FlatArray.Tests/FlatArray.Tests.csproj
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Expand Up @@ -7,7 +7,7 @@
<Nullable>enable</Nullable>
<InvariantGlobalization>true</InvariantGlobalization>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
<NoWarn>$(NoWarn);CA1861;IDE0130;xUnit1046</NoWarn>
<NoWarn>$(NoWarn);CA1861;IDE0130;xUnit1044;xUnit1046</NoWarn>
<IsPackable>false</IsPackable>
<IsTestProject>true</IsTestProject>
<Authors>Andrei Sergeev, Pavel Moskovoy</Authors>
Expand Down
0 ...s.FlatArrayExtensions/Test.AsFlatArray.cs → ...rrayExtensions/AsFlatArray/AsFlatArray.cs
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80 changes: 80 additions & 0 deletions ...tcollections-array/FlatArray.Tests/Tests.FlatArrayExtensions/Split/Split.Char.Count.cs.cs
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using System;
using Xunit;

namespace PrimeFuncPack.Core.Tests;

using TestTheoryData = TheoryData<string?, char, int, StringSplitOptions, string[]?, int>;

partial class FlatArrayExtensionsTest
{
[Theory]
[MemberData(nameof(SplitToFlatArray_WithCharSeparatorAndCount_ExpectCorrectState_Cases))]
public void SplitToFlatArray_WithCharSeparatorAndCount_ExpectCorrectState(
string? source, char separator, int count, StringSplitOptions options, string[]? expectedItems, int expectedLength)
{
var actual = source.SplitToFlatArray(separator, count, options);
actual.VerifyInnerState(expectedItems, expectedLength);
}

public static TestTheoryData SplitToFlatArray_WithCharSeparatorAndCount_ExpectCorrectState_Cases
=>
[
new(null, 'a', 1, StringSplitOptions.None, null, default),
new("a,b,c", ',', -5, StringSplitOptions.None, null, default),
new("a,b,c", ',', -1, StringSplitOptions.RemoveEmptyEntries, null, default),
new(string.Empty, ',', 1, StringSplitOptions.None, [string.Empty], 1),
new(string.Empty, ',', 1, StringSplitOptions.RemoveEmptyEntries, null, default),
new("a", ',', 1, StringSplitOptions.None, ["a"], 1),
new("abc", ',', 1, StringSplitOptions.None, ["abc"], 1),
new("a,b,c", ',', 1, StringSplitOptions.None, ["a,b,c"], 1),
new("a,b,c", ',', 2, StringSplitOptions.None, ["a", "b,c"], 2),
new("a,b,c", ',', 3, StringSplitOptions.None, ["a", "b", "c"], 3),
new("a,b,c", ',', 10, StringSplitOptions.None, ["a", "b", "c"], 3),
new("a,,c", ',', 2, StringSplitOptions.None, ["a", ",c"], 2),
new("a,,c", ',', 3, StringSplitOptions.None, ["a", "", "c"], 3),
new("a,,c", ',', 3, StringSplitOptions.RemoveEmptyEntries, ["a", "c"], 2),
new(",,,", ',', 1, StringSplitOptions.None, [",,,"], 1),
new(",,,", ',', 2, StringSplitOptions.None, ["", ",,"], 2),
new(",,,", ',', 4, StringSplitOptions.None, ["", "", "", ""], 4),
new(",,,", ',', 4, StringSplitOptions.RemoveEmptyEntries, null, default),
new(",a,b,", ',', 2, StringSplitOptions.None, ["", "a,b,"], 2),
new(",a,b,", ',', 4, StringSplitOptions.None, ["", "a", "b", ""], 4),
new(",a,b,", ',', 4, StringSplitOptions.RemoveEmptyEntries, ["a", "b"], 2),
new(" a , b , c ", ',', 3, StringSplitOptions.None, [" a ", " b ", " c "], 3),
new(" a , b , c ", ',', 3, StringSplitOptions.TrimEntries, ["a", "b", "c"], 3),
new(" a , , c ", ',', 3, StringSplitOptions.TrimEntries, ["a", "", "c"], 3),
new(" a , , c ", ',', 3, StringSplitOptions.TrimEntries | StringSplitOptions.RemoveEmptyEntries, ["a", "c"], 2),
new("a|b|c", '|', 2, StringSplitOptions.None, ["a", "b|c"], 2),
new("a|b|c", '|', 3, StringSplitOptions.None, ["a", "b", "c"], 3),
new("a|b||c", '|', 4, StringSplitOptions.None, ["a", "b", "", "c"], 4),
new("a|b||c", '|', 4, StringSplitOptions.RemoveEmptyEntries, ["a", "b", "c"], 3),
new("|a|b|", '|', 2, StringSplitOptions.None, ["", "a|b|"], 2),
new("|a|b|", '|', 4, StringSplitOptions.None, ["", "a", "b", ""], 4),
new("|a|b|", '|', 4, StringSplitOptions.RemoveEmptyEntries, ["a", "b"], 2),
new(" ", ' ', 1, StringSplitOptions.None, [" "], 1),
new(" ", ' ', 2, StringSplitOptions.None, ["", " "], 2),
new(" ", ' ', 4, StringSplitOptions.None, ["", "", "", ""], 4),
new(" ", ' ', 4, StringSplitOptions.RemoveEmptyEntries, null, default),
new(" ", ' ', 4, StringSplitOptions.TrimEntries, ["", "", "", ""], 4),
new(" ", ' ', 4, StringSplitOptions.TrimEntries | StringSplitOptions.RemoveEmptyEntries, null, default),
new("a b c", ' ', 2, StringSplitOptions.None, ["a", "b c"], 2),
new("a b c", ' ', 3, StringSplitOptions.None, ["a", "b", "c"], 3),
new("a b c", ' ', 4, StringSplitOptions.None, ["a", "b", "", "c"], 4),
new("a b c", ' ', 4, StringSplitOptions.RemoveEmptyEntries, ["a", "b", "c"], 3),
new(" a b c ", ' ', 5, StringSplitOptions.TrimEntries, ["", "a", "b", "c", ""], 5),
new(" a b c ", ' ', 5, StringSplitOptions.TrimEntries | StringSplitOptions.RemoveEmptyEntries, ["a", "b", "c"], 3),
new("a\tb\tc", '\t', 3, StringSplitOptions.None, ["a", "b", "c"], 3),
new("a\t\tc", '\t', 3, StringSplitOptions.None, ["a", "", "c"], 3),
new("a\t\tc", '\t', 3, StringSplitOptions.RemoveEmptyEntries, ["a", "c"], 2),
new("α,β,γ", ',', 3, StringSplitOptions.None, ["α", "β", "γ"], 3),
new("α,,γ", ',', 3, StringSplitOptions.None, ["α", "", "γ"], 3),
new("α,,γ", ',', 3, StringSplitOptions.RemoveEmptyEntries, ["α", "γ"], 2),
new("one", 'x', 1, StringSplitOptions.None, ["one"], 1),
new("one", 'x', 3, StringSplitOptions.None, ["one"], 1),
new("one", 'x', 3, StringSplitOptions.RemoveEmptyEntries, ["one"], 1),
new("xone", 'x', 2, StringSplitOptions.None, ["", "one"], 2),
new("onex", 'x', 2, StringSplitOptions.None, ["one", ""], 2),
new("xone", 'x', 2, StringSplitOptions.RemoveEmptyEntries, ["one"], 1),
new("onex", 'x', 2, StringSplitOptions.RemoveEmptyEntries, ["one"], 1)
];
}
64 changes: 64 additions & 0 deletions src/flatcollections-array/FlatArray.Tests/Tests.FlatArrayExtensions/Split/Split.Char.cs
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using System;
using Xunit;

namespace PrimeFuncPack.Core.Tests;

using TestTheoryData = TheoryData<string?, char, StringSplitOptions, string[]?, int>;

partial class FlatArrayExtensionsTest
{
[Theory]
[MemberData(nameof(SplitToFlatArray_WithCharSeparator_ExpectCorrectState_Cases))]
public void SplitToFlatArray_WithCharSeparator_ExpectCorrectState(
string? source, char separator, StringSplitOptions options, string[]? expectedItems, int expectedLength)
{
var actual = source.SplitToFlatArray(separator, options);
actual.VerifyInnerState(expectedItems, expectedLength);
}

public static TestTheoryData SplitToFlatArray_WithCharSeparator_ExpectCorrectState_Cases
=>
[
new(null, 'a', StringSplitOptions.None, null, default),
new(string.Empty, ',', StringSplitOptions.None, [string.Empty], 1),
new(string.Empty, ',', StringSplitOptions.RemoveEmptyEntries, null, default),
new("a", ',', StringSplitOptions.None, ["a"], 1),
new("abc", ',', StringSplitOptions.None, ["abc"], 1),
new("a,b,c", ',', StringSplitOptions.None, ["a", "b", "c"], 3),
new("a,,c", ',', StringSplitOptions.None, ["a", "", "c"], 3),
new("a,,c", ',', StringSplitOptions.RemoveEmptyEntries, ["a", "c"], 2),
new(",,,", ',', StringSplitOptions.None, ["", "", "", ""], 4),
new(",,,", ',', StringSplitOptions.RemoveEmptyEntries, null, default),
new(",a,b,", ',', StringSplitOptions.None, ["", "a", "b", ""], 4),
new(",a,b,", ',', StringSplitOptions.RemoveEmptyEntries, ["a", "b"], 2),
new(" a , b , c ", ',', StringSplitOptions.None, [" a ", " b ", " c "], 3),
new(" a , b , c ", ',', StringSplitOptions.TrimEntries, ["a", "b", "c"], 3),
new(" a , , c ", ',', StringSplitOptions.TrimEntries, ["a", "", "c"], 3),
new(" a , , c ", ',', StringSplitOptions.TrimEntries | StringSplitOptions.RemoveEmptyEntries, ["a", "c"], 2),
new("a|b|c", '|', StringSplitOptions.None, ["a", "b", "c"], 3),
new("a|b||c", '|', StringSplitOptions.None, ["a", "b", "", "c"], 4),
new("a|b||c", '|', StringSplitOptions.RemoveEmptyEntries, ["a", "b", "c"], 3),
new("|a|b|", '|', StringSplitOptions.None, ["", "a", "b", ""], 4),
new("|a|b|", '|', StringSplitOptions.RemoveEmptyEntries, ["a", "b"], 2),
new(" ", ' ', StringSplitOptions.None, ["", "", "", ""], 4),
new(" ", ' ', StringSplitOptions.RemoveEmptyEntries, null, default),
new(" ", ' ', StringSplitOptions.TrimEntries, ["", "", "", ""], 4),
new(" ", ' ', StringSplitOptions.TrimEntries | StringSplitOptions.RemoveEmptyEntries, null, default),
new("a b c", ' ', StringSplitOptions.None, ["a", "b", "c"], 3),
new("a b c", ' ', StringSplitOptions.None, ["a", "b", "", "c"], 4),
new("a b c", ' ', StringSplitOptions.RemoveEmptyEntries, ["a", "b", "c"], 3),
new(" a b c ", ' ', StringSplitOptions.TrimEntries, ["", "a", "b", "c", ""], 5),
new("a\tb\tc", '\t', StringSplitOptions.None, ["a", "b", "c"], 3),
new("a\t\tc", '\t', StringSplitOptions.None, ["a", "", "c"], 3),
new("a\t\tc", '\t', StringSplitOptions.RemoveEmptyEntries, ["a", "c"], 2),
new("α,β,γ", ',', StringSplitOptions.None, ["α", "β", "γ"], 3),
new("α,,γ", ',', StringSplitOptions.None, ["α", "", "γ"], 3),
new("α,,γ", ',', StringSplitOptions.RemoveEmptyEntries, ["α", "γ"], 2),
new("one", 'x', StringSplitOptions.None, ["one"], 1),
new("one", 'x', StringSplitOptions.RemoveEmptyEntries, ["one"], 1),
new("xone", 'x', StringSplitOptions.None, ["", "one"], 2),
new("onex", 'x', StringSplitOptions.None, ["one", ""], 2),
new("xone", 'x', StringSplitOptions.RemoveEmptyEntries, ["one"], 1),
new("onex", 'x', StringSplitOptions.RemoveEmptyEntries, ["one"], 1)
];
}
50 changes: 50 additions & 0 deletions ...ollections-array/FlatArray.Tests/Tests.FlatArrayExtensions/Split/Split.CharArray.Count.cs
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using System;
using Xunit;

namespace PrimeFuncPack.Core.Tests;

using TestTheoryData = TheoryData<string?, char[]?, int, StringSplitOptions, string[]?, int>;

partial class FlatArrayExtensionsTest
{
[Theory]
[MemberData(nameof(SplitToFlatArray_WithCharSeparatorsAndCount_ExpectCorrectState_Cases))]
public void SplitToFlatArray_WithCharSeparatorsAndCount_ExpectCorrectState(
string? source, char[]? separators, int count, StringSplitOptions options, string[]? expectedItems, int expectedLength)
{
var actual = source.SplitToFlatArray(separators, count, options);
actual.VerifyInnerState(expectedItems, expectedLength);
}

public static TestTheoryData SplitToFlatArray_WithCharSeparatorsAndCount_ExpectCorrectState_Cases
=>
[
new(null, [','], 1, StringSplitOptions.None, null, default),
new("a,b;c", [',', ';'], -5, StringSplitOptions.None, null, default),
new("a,b;c", [',', ';'], -1, StringSplitOptions.RemoveEmptyEntries, null, default),
new(string.Empty, [','], 1, StringSplitOptions.None, [string.Empty], 1),
new(string.Empty, [','], 1, StringSplitOptions.RemoveEmptyEntries, null, default),
new("a,b;c", [',', ';'], 1, StringSplitOptions.None, ["a,b;c"], 1),
new("a,b;c", [',', ';'], 2, StringSplitOptions.None, ["a", "b;c"], 2),
new("a,b;c", [',', ';'], 3, StringSplitOptions.None, ["a", "b", "c"], 3),
new("a,b;c", [',', ';'], 10, StringSplitOptions.None, ["a", "b", "c"], 3),
new("a,,c", [','], 2, StringSplitOptions.None, ["a", ",c"], 2),
new("a,,c", [','], 3, StringSplitOptions.None, ["a", "", "c"], 3),
new("a,,c", [','], 3, StringSplitOptions.RemoveEmptyEntries, ["a", "c"], 2),
new(",;a;;b,", [',', ';'], 2, StringSplitOptions.None, ["", ";a;;b,"], 2),
new(",;a;;b,", [',', ';'], 6, StringSplitOptions.None, ["", "", "a", "", "b", ""], 6),
new(",;a;;b,", [',', ';'], 6, StringSplitOptions.RemoveEmptyEntries, ["a", "b"], 2),
new(" a | b ; c ", ['|', ';'], 3, StringSplitOptions.TrimEntries, ["a", "b", "c"], 3),
new(" a | ; c ", ['|', ';'], 3, StringSplitOptions.TrimEntries | StringSplitOptions.RemoveEmptyEntries, ["a", "c"], 2),
new("a b c", null, 2, StringSplitOptions.None, ["a", "b c"], 2),
new("a\tb c", [], 2, StringSplitOptions.None, ["a", "b c"], 2),
new("a\tb c", [], 3, StringSplitOptions.None, ["a", "b", "c"], 3),
new(" ", [], 1, StringSplitOptions.None, [" "], 1),
new(" ", [], 4, StringSplitOptions.RemoveEmptyEntries, null, default),
new(" a b ", [], 2, StringSplitOptions.RemoveEmptyEntries, ["a", "b "], 2),
new("a b c", [], 2, StringSplitOptions.RemoveEmptyEntries, ["a", "b c"], 2),
new("a,b", [','], 0, StringSplitOptions.None, null, default),
new("one", ['x'], 3, StringSplitOptions.None, ["one"], 1),
new("xone", ['x'], 2, StringSplitOptions.RemoveEmptyEntries, ["one"], 1)
];
}
46 changes: 46 additions & 0 deletions src/flatcollections-array/FlatArray.Tests/Tests.FlatArrayExtensions/Split/Split.CharArray.cs
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using System;
using Xunit;

namespace PrimeFuncPack.Core.Tests;

using TestTheoryData = TheoryData<string?, char[]?, StringSplitOptions, string[]?, int>;

partial class FlatArrayExtensionsTest
{
[Theory]
[MemberData(nameof(SplitToFlatArray_WithCharSeparators_ExpectCorrectState_Cases))]
public void SplitToFlatArray_WithCharSeparators_ExpectCorrectState(
string? source, char[]? separators, StringSplitOptions options, string[]? expectedItems, int expectedLength)
{
var actual = source.SplitToFlatArray(separators, options);
actual.VerifyInnerState(expectedItems, expectedLength);
}

public static TestTheoryData SplitToFlatArray_WithCharSeparators_ExpectCorrectState_Cases
=>
[
new(null, [','], StringSplitOptions.None, null, default),
new(string.Empty, [','], StringSplitOptions.None, [string.Empty], 1),
new(string.Empty, [','], StringSplitOptions.RemoveEmptyEntries, null, default),
new("a,b;c", [',', ';'], StringSplitOptions.None, ["a", "b", "c"], 3),
new("a,,c", [',', ';'], StringSplitOptions.None, ["a", "", "c"], 3),
new("a,,c", [','], StringSplitOptions.RemoveEmptyEntries, ["a", "c"], 2),
new(",;a;;b,", [',', ';'], StringSplitOptions.None, ["", "", "a", "", "b", ""], 6),
new(",;a;;b,", [',', ';'], StringSplitOptions.RemoveEmptyEntries, ["a", "b"], 2),
new(" a | b ; c ", ['|', ';'], StringSplitOptions.None, [" a ", " b ", " c "], 3),
new(" a | b ; c ", ['|', ';'], StringSplitOptions.TrimEntries, ["a", "b", "c"], 3),
new(" a | ; c ", ['|', ';'], StringSplitOptions.TrimEntries, ["a", "", "c"], 3),
new(" a | ; c ", ['|', ';'], StringSplitOptions.TrimEntries | StringSplitOptions.RemoveEmptyEntries, ["a", "c"], 2),
new("a\tb c", [], StringSplitOptions.None, ["a", "b", "c"], 3),
new(" ", [], StringSplitOptions.None, ["", "", "", ""], 4),
new(" ", [], StringSplitOptions.RemoveEmptyEntries, null, default),
new(" a b ", [], StringSplitOptions.RemoveEmptyEntries, ["a", "b"], 2),
new("one", ['x', 'y'], StringSplitOptions.None, ["one"], 1),
new("xone", ['x'], StringSplitOptions.None, ["", "one"], 2),
new("onex", ['x'], StringSplitOptions.RemoveEmptyEntries, ["one"], 1),
new("a||b;;c", ['|', ';'], StringSplitOptions.RemoveEmptyEntries, ["a", "b", "c"], 3),
new("a| |c", ['|'], StringSplitOptions.TrimEntries | StringSplitOptions.RemoveEmptyEntries, ["a", "c"], 2),
new("α,β;γ", [',', ';'], StringSplitOptions.None, ["α", "β", "γ"], 3),
new("a,b c", null, StringSplitOptions.None, ["a,b", "c"], 2)
];
}
50 changes: 50 additions & 0 deletions ...atcollections-array/FlatArray.Tests/Tests.FlatArrayExtensions/Split/Split.String.Count.cs
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using System;
using Xunit;

namespace PrimeFuncPack.Core.Tests;

using TestTheoryData = TheoryData<string?, string?, int, StringSplitOptions, string[]?, int>;

partial class FlatArrayExtensionsTest
{
[Theory]
[MemberData(nameof(SplitToFlatArray_WithStringSeparatorAndCount_ExpectCorrectState_Cases))]
public void SplitToFlatArray_WithStringSeparatorAndCount_ExpectCorrectState(
string? source, string? separator, int count, StringSplitOptions options, string[]? expectedItems, int expectedLength)
{
var actual = source.SplitToFlatArray(separator, count, options);
actual.VerifyInnerState(expectedItems, expectedLength);
}

public static TestTheoryData SplitToFlatArray_WithStringSeparatorAndCount_ExpectCorrectState_Cases
=>
[
new(null, ",", 1, StringSplitOptions.None, null, default),
new("a,b,c", ",", -5, StringSplitOptions.None, null, default),
new("a,b,c", ",", -1, StringSplitOptions.RemoveEmptyEntries, null, default),
new(string.Empty, ",", 1, StringSplitOptions.None, [string.Empty], 1),
new(string.Empty, ",", 1, StringSplitOptions.RemoveEmptyEntries, null, default),
new("a,b,c", ",", 1, StringSplitOptions.None, ["a,b,c"], 1),
new("a,b,c", ",", 2, StringSplitOptions.None, ["a", "b,c"], 2),
new("a,b,c", ",", 3, StringSplitOptions.None, ["a", "b", "c"], 3),
new("a,b,c", ",", 10, StringSplitOptions.None, ["a", "b", "c"], 3),
new("a,,c", ",", 2, StringSplitOptions.None, ["a", ",c"], 2),
new("a,,c", ",", 3, StringSplitOptions.RemoveEmptyEntries, ["a", "c"], 2),
new(",a,b,", ",", 2, StringSplitOptions.None, ["", "a,b,"], 2),
new(",a,b,", ",", 4, StringSplitOptions.RemoveEmptyEntries, ["a", "b"], 2),
new("a||b||c", "||", 2, StringSplitOptions.None, ["a", "b||c"], 2),
new("a||b||c", "||", 3, StringSplitOptions.None, ["a", "b", "c"], 3),
new("a||||c", "||", 3, StringSplitOptions.None, ["a", "", "c"], 3),
new("a||||c", "||", 3, StringSplitOptions.RemoveEmptyEntries, ["a", "c"], 2),
new(" a :: b :: c ", "::", 3, StringSplitOptions.TrimEntries, ["a", "b", "c"], 3),
new(" a :: :: c ", "::", 3, StringSplitOptions.TrimEntries | StringSplitOptions.RemoveEmptyEntries, ["a", "c"], 2),
new("a b c", null, 2, StringSplitOptions.None, ["a b c"], 1),
new("a b c", null, 3, StringSplitOptions.RemoveEmptyEntries, ["a b c"], 1),
new(" ", null, 1, StringSplitOptions.None, [" "], 1),
new(" ", null, 4, StringSplitOptions.RemoveEmptyEntries, [" "], 1),
new("one", "x", 3, StringSplitOptions.None, ["one"], 1),
new("xone", "x", 2, StringSplitOptions.RemoveEmptyEntries, ["one"], 1),
new("a,b", ",", 0, StringSplitOptions.None, null, default),
new("a b c", string.Empty, 2, StringSplitOptions.RemoveEmptyEntries, ["a b c"], 1)
];
}
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