Added a UTF-8 ValueStringBuilder

[mwadams]

• Added Corvus.HighPerformance.Utf8.ValueStringBuilder.
• Added tests equivalent to those in Corvus.HighPerformance.ValueStringBuilder.

[github-actions]

Test Results

  1 files  ±  0    1 suites  ±0   0s ⏱️ ±0s
454 tests +233  454 ✅ +233  0 💤 ±0  0 ❌ ±0 
458 runs  +236  458 ✅ +236  0 💤 ±0  0 ❌ ±0 

Results for commit 024ba46. ± Comparison against base commit f1ff50a.

♻️ This comment has been updated with latest results.

[github-actions]

Code Coverage Summary Report - Linux (net8.0)

Summary

Generated on:	09/18/2025 - 08:11:32
Parser:	Cobertura
Assemblies:	2
Classes:	26
Files:	21
Line coverage:	82.5% (758 of 918)
Covered lines:	758
Uncovered lines:	160
Coverable lines:	918
Total lines:	2585
Branch coverage:	65.6% (126 of 192)
Covered branches:	126
Total branches:	192
Method coverage:	Feature is only available for sponsors

Coverage

Corvus.HighPerformance - 67%

Name	Line	Branch
Corvus.HighPerformance	67%	62.3%
Corvus.HighPerformance.Utf8.ValueStringBuilder	68.5%	64.7%
Corvus.HighPerformance.ValueStringBuilder	65.7%	60.2%

Corvus.HighPerformance.Specs - 95.9%

Name	Line	Branch
Corvus.HighPerformance.Specs	95.9%	76%
Corvus.HighPerformance.Specs.ExceptionStepDefinitions	45.4%	50%
Reqnroll_GeneratedTests_MSTestAssemblyHooks	80%
ValueStringBuilderFeatures.AppendContentIntoAValueStringBuilderFeature	100%
ValueStringBuilderFeatures.Net80.AppendCompositeFormatIntoAValueStringBuild erFeature	100%
ValueStringBuilderFeatures.ReplaceContentInAValueStringBuilderFeature	100%
ValueStringBuilderFeatures.RetrieveAMemoryFromAValueStringBuilderFeature	100%
ValueStringBuilderFeatures.RetrieveASpanFromAValueStringBuilderFeature	100%
ValueStringBuilderFeatures.Utf8.AppendContentIntoAUTF_8ValueStringBuilderFe ature	100%
ValueStringBuilderFeatures.Utf8.ReplaceContentInAUTF_8ValueStringBuilderFea ture	100%
ValueStringBuilderFeatures.Utf8.RetrieveAMemoryFromAUTF_8ValueStringBuilder Feature	100%
ValueStringBuilderFeatures.Utf8.RetrieveASpanFromAUTF_8ValueStringBuilderFe ature	100%
ValueStringBuilderFeatures.Utf8.Utf8ValueStringBuilderStepDefinitions	100%	50%
ValueStringBuilderFeatures.Utf8.Utf8ValueStringBuilderTestDriver	92%	80%
ValueStringBuilderFeatures.Utf8.Utf8ValueStringBuilderTestDriver.AppendInt3 2Operation	100%
ValueStringBuilderFeatures.Utf8.Utf8ValueStringBuilderTestDriver.AppendOper ation	100%
ValueStringBuilderFeatures.Utf8.Utf8ValueStringBuilderTestDriver.AttemptRep laceOperation	91.6%
ValueStringBuilderFeatures.Utf8.Utf8ValueStringBuilderTestDriver.ReplaceOpe ration	100%
ValueStringBuilderFeatures.ValueStringBuilderStepDefinitions	100%	50%
ValueStringBuilderFeatures.ValueStringBuilderTestDriver	92.4%	80%
ValueStringBuilderFeatures.ValueStringBuilderTestDriver.AppendFormatOperati on	100%
ValueStringBuilderFeatures.ValueStringBuilderTestDriver.AppendInt32Operatio n	100%
ValueStringBuilderFeatures.ValueStringBuilderTestDriver.AppendOperation	100%
ValueStringBuilderFeatures.ValueStringBuilderTestDriver.AttemptReplaceOpera tion	91.6%
ValueStringBuilderFeatures.ValueStringBuilderTestDriver.ReplaceOperation	100%

[github-actions]

Code Coverage Summary Report - Windows (net481)

Summary

Generated on:	9/18/2025 - 8:12:53 AM
Parser:	Cobertura
Assemblies:	2
Classes:	24
Files:	18
Line coverage:	82.3% (749 of 910)
Covered lines:	749
Uncovered lines:	161
Coverable lines:	910
Total lines:	2631
Branch coverage:	66.1% (131 of 198)
Covered branches:	131
Total branches:	198
Method coverage:	Feature is only available for sponsors

Coverage

Corvus.HighPerformance - 67.4%

Name	Line	Branch
Corvus.HighPerformance	67.4%	63.1%
Corvus.HighPerformance.Utf8.ValueStringBuilder	68.5%	64.7%
Corvus.HighPerformance.ValueStringBuilder	66.5%	61.9%

Corvus.HighPerformance.Specs - 95.8%

Name	Line	Branch
Corvus.HighPerformance.Specs	95.8%	76%
Corvus.HighPerformance.Specs.ExceptionStepDefinitions	45.4%	50%
Reqnroll_GeneratedTests_MSTestAssemblyHooks	80%
ValueStringBuilderFeatures.AppendContentIntoAValueStringBuilderFeature	100%
ValueStringBuilderFeatures.ReplaceContentInAValueStringBuilderFeature	100%
ValueStringBuilderFeatures.RetrieveAMemoryFromAValueStringBuilderFeature	100%
ValueStringBuilderFeatures.RetrieveASpanFromAValueStringBuilderFeature	100%
ValueStringBuilderFeatures.Utf8.AppendContentIntoAUTF_8ValueStringBuilderFe ature	100%
ValueStringBuilderFeatures.Utf8.ReplaceContentInAUTF_8ValueStringBuilderFea ture	100%
ValueStringBuilderFeatures.Utf8.RetrieveAMemoryFromAUTF_8ValueStringBuilder Feature	100%
ValueStringBuilderFeatures.Utf8.RetrieveASpanFromAUTF_8ValueStringBuilderFe ature	100%
ValueStringBuilderFeatures.Utf8.Utf8ValueStringBuilderStepDefinitions	100%	50%
ValueStringBuilderFeatures.Utf8.Utf8ValueStringBuilderTestDriver	92%	80%
ValueStringBuilderFeatures.Utf8.Utf8ValueStringBuilderTestDriver.AppendInt3 2Operation	100%
ValueStringBuilderFeatures.Utf8.Utf8ValueStringBuilderTestDriver.AppendOper ation	100%
ValueStringBuilderFeatures.Utf8.Utf8ValueStringBuilderTestDriver.AttemptRep laceOperation	91.6%
ValueStringBuilderFeatures.Utf8.Utf8ValueStringBuilderTestDriver.ReplaceOpe ration	100%
ValueStringBuilderFeatures.ValueStringBuilderStepDefinitions	100%	50%
ValueStringBuilderFeatures.ValueStringBuilderTestDriver	92%	80%
ValueStringBuilderFeatures.ValueStringBuilderTestDriver.AppendInt32Operatio n	100%
ValueStringBuilderFeatures.ValueStringBuilderTestDriver.AppendOperation	100%
ValueStringBuilderFeatures.ValueStringBuilderTestDriver.AttemptReplaceOpera tion	91.6%
ValueStringBuilderFeatures.ValueStringBuilderTestDriver.ReplaceOperation	100%

[github-actions]

Code Coverage Summary Report - Windows (net8.0)

Summary

Generated on:	9/18/2025 - 8:13:16 AM
Parser:	Cobertura
Assemblies:	2
Classes:	26
Files:	21
Line coverage:	82.5% (758 of 918)
Covered lines:	758
Uncovered lines:	160
Coverable lines:	918
Total lines:	2739
Branch coverage:	65.6% (126 of 192)
Covered branches:	126
Total branches:	192
Method coverage:	Feature is only available for sponsors

Coverage

Corvus.HighPerformance - 67%

Name	Line	Branch
Corvus.HighPerformance	67%	62.3%
Corvus.HighPerformance.Utf8.ValueStringBuilder	68.5%	64.7%
Corvus.HighPerformance.ValueStringBuilder	65.7%	60.2%

Corvus.HighPerformance.Specs - 95.9%

Name	Line	Branch
Corvus.HighPerformance.Specs	95.9%	76%
Corvus.HighPerformance.Specs.ExceptionStepDefinitions	45.4%	50%
Reqnroll_GeneratedTests_MSTestAssemblyHooks	80%
ValueStringBuilderFeatures.AppendContentIntoAValueStringBuilderFeature	100%
ValueStringBuilderFeatures.Net80.AppendCompositeFormatIntoAValueStringBuild erFeature	100%
ValueStringBuilderFeatures.ReplaceContentInAValueStringBuilderFeature	100%
ValueStringBuilderFeatures.RetrieveAMemoryFromAValueStringBuilderFeature	100%
ValueStringBuilderFeatures.RetrieveASpanFromAValueStringBuilderFeature	100%
ValueStringBuilderFeatures.Utf8.AppendContentIntoAUTF_8ValueStringBuilderFe ature	100%
ValueStringBuilderFeatures.Utf8.ReplaceContentInAUTF_8ValueStringBuilderFea ture	100%
ValueStringBuilderFeatures.Utf8.RetrieveAMemoryFromAUTF_8ValueStringBuilder Feature	100%
ValueStringBuilderFeatures.Utf8.RetrieveASpanFromAUTF_8ValueStringBuilderFe ature	100%
ValueStringBuilderFeatures.Utf8.Utf8ValueStringBuilderStepDefinitions	100%	50%
ValueStringBuilderFeatures.Utf8.Utf8ValueStringBuilderTestDriver	92%	80%
ValueStringBuilderFeatures.Utf8.Utf8ValueStringBuilderTestDriver.AppendInt3 2Operation	100%
ValueStringBuilderFeatures.Utf8.Utf8ValueStringBuilderTestDriver.AppendOper ation	100%
ValueStringBuilderFeatures.Utf8.Utf8ValueStringBuilderTestDriver.AttemptRep laceOperation	91.6%
ValueStringBuilderFeatures.Utf8.Utf8ValueStringBuilderTestDriver.ReplaceOpe ration	100%
ValueStringBuilderFeatures.ValueStringBuilderStepDefinitions	100%	50%
ValueStringBuilderFeatures.ValueStringBuilderTestDriver	92.4%	80%
ValueStringBuilderFeatures.ValueStringBuilderTestDriver.AppendFormatOperati on	100%
ValueStringBuilderFeatures.ValueStringBuilderTestDriver.AppendInt32Operatio n	100%
ValueStringBuilderFeatures.ValueStringBuilderTestDriver.AppendOperation	100%
ValueStringBuilderFeatures.ValueStringBuilderTestDriver.AttemptReplaceOpera tion	91.6%
ValueStringBuilderFeatures.ValueStringBuilderTestDriver.ReplaceOperation	100%