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feat: Created library and added initial implementation (#1)
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@@ -24,7 +24,7 @@ jobs: | |
| name: Build & Tests | ||
| uses: dailydevops/pipelines/.github/workflows/[email protected] | ||
| with: | ||
| enableSonarQube: true | ||
| dotnet-logging: ${{ inputs.dotnet-logging }} | ||
| dotnet-version: ${{ vars.NE_DOTNET_TARGETFRAMEWORKS }} | ||
| solution: ./FluentValue.sln | ||
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| @@ -1,2 +1,9 @@ | ||
| # NetEvolve.FluentValue | ||
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| This is a simple library that allows you to validate the given value against a set of constraints. It is designed to be used in a fluent way, so you can chain multiple constraints together. Most of the constraints have multipe execution paths, so that based on the value, delivers the most fitting result. | ||
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| ## Installation | ||
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| ```bash | ||
| dotnet add package NetEvolve.FluentValue | ||
| ``` |
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| namespace NetEvolve.FluentValue.Constraints; | ||
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| using System; | ||
| using System.Text; | ||
| using NetEvolve.FluentValue; | ||
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| internal abstract class ConstraintBase : IConstraint | ||
| { | ||
| [ThreadStatic] | ||
| private static StringBuilder? _builder; | ||
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| private const int DefaultCapacity = 1024; | ||
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| public abstract bool IsSatisfiedBy(object? value); | ||
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| public abstract void SetDescription(StringBuilder builder); | ||
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| public override string ToString() | ||
| { | ||
| var builder = _builder ?? new StringBuilder(capacity: DefaultCapacity); | ||
| #pragma warning disable S2696 // Instance members should not write to "static" fields | ||
| _builder = null; | ||
| #pragma warning restore S2696 // Instance members should not write to "static" fields | ||
| try | ||
| { | ||
| _ = builder.Append('"').Append("{Value}"); | ||
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| SetDescription(builder); | ||
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| return builder.Append('.').Append('"').ToString(); | ||
| } | ||
| finally | ||
| { | ||
| _ = builder.Clear(); | ||
| if (builder.Capacity > DefaultCapacity) | ||
| { | ||
| builder.Capacity = DefaultCapacity; | ||
| } | ||
| _builder = builder; | ||
| } | ||
| } | ||
| } |
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| namespace NetEvolve.FluentValue.Constraints; | ||
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| using System; | ||
| using System.Collections; | ||
| using System.Linq; | ||
| using System.Text; | ||
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| internal sealed class ContainsConstraint : ConstraintBase | ||
| { | ||
| private readonly object? _compareValue; | ||
| private readonly StringComparison? _comparison; | ||
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| public ContainsConstraint(char compareValue, StringComparison comparison) | ||
| { | ||
| _compareValue = compareValue; | ||
| _comparison = comparison; | ||
| } | ||
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| public ContainsConstraint(string compareValue, StringComparison comparison) | ||
| { | ||
| _compareValue = compareValue; | ||
| _comparison = comparison; | ||
| } | ||
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| public ContainsConstraint(object? compareValue) => _compareValue = compareValue; | ||
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| public override bool IsSatisfiedBy(object? value) => | ||
| value switch | ||
| { | ||
| null => false, | ||
| string stringValue when _compareValue is string compareValue | ||
| => stringValue.Contains(compareValue, _comparison ?? default), | ||
| string stringValue when _compareValue is char compareValue | ||
| => stringValue.Contains(compareValue, _comparison ?? default), | ||
| IDictionary dictionary => dictionary.Contains(_compareValue!), | ||
| IList list => list.Contains(_compareValue!), | ||
| IEnumerable enumerable => enumerable.Cast<object?>().Contains(_compareValue), | ||
| _ => throw new NotSupportedException($"Invalid type `{value!.GetType().FullName}`.") | ||
| }; | ||
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| public override void SetDescription(StringBuilder builder) => | ||
| builder.Append(" contains `").Append(_compareValue).Append('`'); | ||
| } |
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| namespace NetEvolve.FluentValue.Constraints; | ||
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| using System; | ||
| using System.Text; | ||
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| internal sealed class DefaultConstraint : ConstraintBase | ||
| { | ||
| public override bool IsSatisfiedBy(object? value) => | ||
| value?.GetType() switch | ||
| { | ||
| { IsValueType: true } valueType => GetDefault(valueType).Equals(value), | ||
| _ => false | ||
| }; | ||
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| public override void SetDescription(StringBuilder builder) => builder.Append(" is <default>"); | ||
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| private static object GetDefault(Type value) | ||
| { | ||
| var underlying = Nullable.GetUnderlyingType(value); | ||
| if (underlying is not null) | ||
| { | ||
| return Activator.CreateInstance(underlying)!; | ||
| } | ||
| return Activator.CreateInstance(value)!; | ||
| } | ||
| } |
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| namespace NetEvolve.FluentValue.Constraints; | ||
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| using System; | ||
| using System.Collections; | ||
| using System.Text; | ||
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| internal sealed class EmptyConstraint : ConstraintBase | ||
| { | ||
| public override bool IsSatisfiedBy(object? value) => | ||
| value switch | ||
| { | ||
| string stringValue => stringValue.Length == 0, | ||
| Guid guidValue => guidValue == Guid.Empty, | ||
| ICollection collection => collection.Count == 0, | ||
| IEnumerable enumerable => !enumerable.GetEnumerator().MoveNext(), | ||
| _ => false | ||
| }; | ||
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| public override void SetDescription(StringBuilder builder) => builder.Append(" is <empty>"); | ||
| } |
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| namespace NetEvolve.FluentValue.Constraints; | ||
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| using System; | ||
| using System.Text; | ||
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| internal sealed class EndsWithConstraint : ConstraintBase | ||
| { | ||
| private readonly object? _compareValue; | ||
| private readonly StringComparison? _comparison; | ||
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| public EndsWithConstraint(char compareValue) => _compareValue = compareValue; | ||
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| public EndsWithConstraint(string compareValue, StringComparison comparison) | ||
| { | ||
| _compareValue = compareValue; | ||
| _comparison = comparison; | ||
| } | ||
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| public override bool IsSatisfiedBy(object? value) => | ||
| value switch | ||
| { | ||
| string stringValue when _compareValue is string compare | ||
| => stringValue.EndsWith(compare, _comparison ?? default), | ||
| string stringValue when _compareValue is char compare => stringValue.EndsWith(compare), | ||
| _ => false | ||
| }; | ||
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| public override void SetDescription(StringBuilder builder) => | ||
| builder.Append(" ends with `").Append(_compareValue).Append('`'); | ||
| } |
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| namespace NetEvolve.FluentValue.Constraints; | ||
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| using System; | ||
| using System.Text; | ||
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| internal sealed class EqualToConstraint : ConstraintBase | ||
| { | ||
| private readonly object? _compareValue; | ||
| private readonly StringComparison? _comparison; | ||
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| public EqualToConstraint(object? compareValue) => _compareValue = compareValue; | ||
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| public EqualToConstraint(string compareValue, StringComparison comparison) | ||
| { | ||
| _compareValue = compareValue; | ||
| _comparison = comparison; | ||
| } | ||
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| public override bool IsSatisfiedBy(object? value) => | ||
| value switch | ||
| { | ||
| string stringValue when _compareValue is string compareValue | ||
| => stringValue.Equals(compareValue, _comparison ?? default), | ||
| string stringValue when _compareValue is IConvertible convertible | ||
| => stringValue.Equals(convertible.ToString(), _comparison ?? default), | ||
| _ => false | ||
| }; | ||
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| public override void SetDescription(StringBuilder builder) => | ||
| builder.Append(" is equal to `").Append(_compareValue).Append('`'); | ||
| } |
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| namespace NetEvolve.FluentValue.Constraints; | ||
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| using System; | ||
| using System.Text; | ||
| using System.Text.RegularExpressions; | ||
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| internal sealed class MatchesConstraint : ConstraintBase | ||
| { | ||
| private readonly string _pattern; | ||
| private readonly Regex _regex; | ||
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| public MatchesConstraint(string pattern, RegexOptions? options) | ||
| { | ||
| _pattern = pattern; | ||
| _regex = new Regex(pattern, options ?? default); | ||
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Check warning on line 15 in src/NetEvolve.FluentValue/Constraints/MatchesConstraint.cs
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| } | ||
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| public override bool IsSatisfiedBy(object? value) => | ||
| value switch | ||
| { | ||
| string stringValue => _regex.IsMatch(stringValue), | ||
| IConvertible convertible => _regex.IsMatch(convertible.ToString()!), | ||
| _ => false | ||
| }; | ||
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| public override void SetDescription(StringBuilder builder) => | ||
| builder.Append(" matches `").Append(_pattern).Append('`'); | ||
| } | ||
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| namespace NetEvolve.FluentValue.Constraints; | ||
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| using System.Text; | ||
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| internal sealed class NullConstraint : ConstraintBase | ||
| { | ||
| public override bool IsSatisfiedBy(object? value) => value is null; | ||
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| public override void SetDescription(StringBuilder builder) => builder.Append(" is <null>"); | ||
| } |
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| @@ -0,0 +1,31 @@ | ||
| namespace NetEvolve.FluentValue.Constraints; | ||
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| using System.Text; | ||
| using NetEvolve.Arguments; | ||
| using NetEvolve.FluentValue; | ||
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| internal sealed class ParenthesisConstraint : ConstraintBase | ||
| { | ||
| private readonly ConstraintBase _constraint; | ||
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| public ParenthesisConstraint(IConstraint constraint) | ||
| { | ||
| Argument.ThrowIfNull(constraint); | ||
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| _constraint = (ConstraintBase)constraint; | ||
| } | ||
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| public override bool IsSatisfiedBy(object? value) | ||
| { | ||
| Argument.ThrowIfNull(_constraint); | ||
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| return _constraint.IsSatisfiedBy(value); | ||
| } | ||
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| public override void SetDescription(StringBuilder builder) | ||
| { | ||
| _ = builder.Append(" ("); | ||
| _constraint.SetDescription(builder); | ||
| _ = builder.Replace("( ", "(").Append(')'); | ||
| } | ||
| } |
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