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Update test for IDX10400 #3314

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Merged
pmaytak merged 1 commit into from
Sep 24, 2025
+15 −4
Merged

Update test for IDX10400 #3314

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19 changes: 15 additions & 4 deletions test/Microsoft.IdentityModel.Tokens.Tests/Base64UrlEncodingTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@
using System;
using System.Reflection;
using System.Text;
using Microsoft.IdentityModel.Logging;
using Microsoft.IdentityModel.TestUtils;
using Xunit;

Expand Down Expand Up @@ -314,15 +315,25 @@ public Base64UrlEncoderTheoryData(string testId) : base(testId) { }
}

[Fact]
public void ValidateAndGetOutputSizeTests()
public void ValidateAndGetOutputSizeTests_InvalidInput_Throws()
{
string input = string.Empty;
Assert.Throws<ArgumentNullException>(() => Base64UrlEncoding.ValidateAndGetOutputSize(input.AsSpan(), 0, 0));
Assert.Throws<ArgumentNullException>(() => Base64UrlEncoding.ValidateAndGetOutputSize(string.Empty.AsSpan(), 0, 0));
Assert.Throws<ArgumentException>(() => Base64UrlEncoding.ValidateAndGetOutputSize("abc".AsSpan(), -1, 3));
Assert.Throws<ArgumentException>(() => Base64UrlEncoding.ValidateAndGetOutputSize("abc".AsSpan(), 0, -1));
Assert.Throws<ArgumentException>(() => Base64UrlEncoding.ValidateAndGetOutputSize("abc".AsSpan(), 0, 4));
Assert.Throws<FormatException>(() => Base64UrlEncoding.ValidateAndGetOutputSize("abcde".AsSpan(), 0, 5));

IdentityModelEventSource.ShowPII = true;
var ex = Assert.Throws<FormatException>(() => Base64UrlEncoding.ValidateAndGetOutputSize("abcde".AsSpan(), 0, 5));
Assert.Equal(string.Format(LogMessages.IDX10400, "abcde"), ex.Message);

IdentityModelEventSource.ShowPII = false;
ex = Assert.Throws<FormatException>(() => Base64UrlEncoding.ValidateAndGetOutputSize("abcde".AsSpan(), 0, 5));
Assert.Equal(string.Format(LogMessages.IDX10400, string.Format(IdentityModelEventSource.HiddenPIIString, "abcde".GetType())), ex.Message);
}

[Fact]
public void ValidateAndGetOutputSizeTests_ValidInput_ReturnsSize()
{
int actualOutputSize = Base64UrlEncoding.ValidateAndGetOutputSize("abc".AsSpan(), 0, 0);
Assert.Equal(0, actualOutputSize);

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