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Merge pull request #14 from bolorundurowb/feature/add-short-id-options
feature/add short id options
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,71 @@ | ||
using FluentAssertions; | ||
using shortid.Configuration; | ||
using Xunit; | ||
|
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namespace shortid.Test.Configuration | ||
{ | ||
public class GenerationOptionsTests | ||
{ | ||
[Fact] | ||
public void ShouldSetDefaultsOnInstantiation() | ||
{ | ||
var options = new GenerationOptions(); | ||
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options | ||
.Length | ||
.Should() | ||
.BeGreaterThan(0); | ||
options | ||
.UseNumbers | ||
.Should() | ||
.BeFalse(); | ||
options | ||
.UseSpecialCharacters | ||
.Should() | ||
.BeTrue(); | ||
} | ||
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[Fact] | ||
public void ShouldAssignRandomLengthOnInstantiation() | ||
{ | ||
var options = new GenerationOptions(); | ||
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options | ||
.Length | ||
.Should() | ||
.BeGreaterThan(7); | ||
options | ||
.Length | ||
.Should() | ||
.BeLessThan(15); | ||
} | ||
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[Fact] | ||
public void ShouldAllowDefaultsToBeChanged() | ||
{ | ||
const bool useNumbers = true; | ||
const bool useSpecial = false; | ||
const int length = 17; | ||
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var options = new GenerationOptions | ||
{ | ||
UseNumbers = useNumbers, | ||
UseSpecialCharacters = useSpecial, | ||
Length = length | ||
}; | ||
|
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options | ||
.Length | ||
.Should() | ||
.Be(length); | ||
options | ||
.UseNumbers | ||
.Should() | ||
.Be(useNumbers); | ||
options | ||
.UseSpecialCharacters | ||
.Should() | ||
.Be(useSpecial); | ||
} | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,26 @@ | ||
using shortid.Utils; | ||
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namespace shortid.Configuration | ||
{ | ||
public class GenerationOptions | ||
{ | ||
/// <summary> | ||
/// Determines whether numbers are used in generating the id | ||
/// Default: false | ||
/// </summary> | ||
public bool UseNumbers { get; set; } | ||
|
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/// <summary> | ||
/// Determines whether special characters are used in generating the id | ||
/// Default: true | ||
/// </summary> | ||
public bool UseSpecialCharacters { get; set; } = true; | ||
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/// <summary> | ||
/// Determines the length of the generated id | ||
/// Default: a random length between 7 and 15 | ||
/// </summary> | ||
public int Length { get; set; } = | ||
RandomUtils.GenerateNumberInRange(Constants.MinimumAutoLength, Constants.MaximumAutoLength); | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,9 @@ | ||
namespace shortid.Utils | ||
{ | ||
internal static class Constants | ||
{ | ||
public const int MinimumAutoLength = 7; | ||
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public const int MaximumAutoLength = 15; | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
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using System; | ||
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namespace shortid.Utils | ||
{ | ||
internal static class RandomUtils | ||
{ | ||
private static readonly Random Random = new Random(); | ||
private static readonly object ThreadLock = new object(); | ||
|
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public static int GenerateNumberInRange(int min, int max) | ||
{ | ||
lock (ThreadLock) | ||
{ | ||
return Random.Next(min, max); | ||
} | ||
} | ||
} | ||
} |
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