Update test for IDX10400

[pmaytak]

• Separated a test into success and failure cases.
• Added a check for log string.

[github-actions]

Summary

Summary

Generated on:	9/19/2025 - 7:59:09 PM
Coverage date:	9/19/2025 - 7:45:48 PM - 9/19/2025 - 7:58:23 PM
Parser:	MultiReport (72x Cobertura)
Assemblies:	1
Classes:	10
Files:	3
Line coverage:	80.3% (931 of 1159)
Covered lines:	931
Uncovered lines:	228
Coverable lines:	1159
Total lines:	908
Branch coverage:	67.8% (342 of 504)
Covered branches:	342
Total branches:	504
Method coverage:	Feature is only available for sponsors

Coverage

Microsoft.IdentityModel.JsonWebTokens - 80.3%

Name	Line	Branch
Microsoft.IdentityModel.JsonWebTokens	80.3%	67.8%
Microsoft.IdentityModel.JsonWebTokens.JwtTokenUtilities	100%
System.Text.RegularExpressions.Generated	80.3%	67.8%
System.Text.RegularExpressions.Generated	80.3%	67.8%
System.Text.RegularExpressions.Generated	80.3%	67.8%
System.Text.RegularExpressions.Generated.<RegexGenerator_g>F12A1AEDDDFE32BA DF4DBFF323AF1BCB48B9F9721B7CD3E05F5E034CF225E3DF8__CreateJweRegex_1	79.2%	68%
System.Text.RegularExpressions.Generated.<RegexGenerator_g>F12A1AEDDDFE32BA DF4DBFF323AF1BCB48B9F9721B7CD3E05F5E034CF225E3DF8__CreateJwsRegex_0	81.4%	67.6%
System.Text.RegularExpressions.Generated.<RegexGenerator_g>F334844C618E00D3 CEC5D3FE0D00CF0141BBEE98635313BB2CB8D3921464CE05A__CreateJweRegex_1	79.2%	68%
System.Text.RegularExpressions.Generated.<RegexGenerator_g>F334844C618E00D3 CEC5D3FE0D00CF0141BBEE98635313BB2CB8D3921464CE05A__CreateJwsRegex_0	81.4%	67.6%
System.Text.RegularExpressions.Generated.<RegexGenerator_g>FE89C4BBA95BC726 BBFA730D496EDD9355321BE5DAEE79F3CE10E7FA17DC7FA64__CreateJweRegex_1	79.2%	68%
System.Text.RegularExpressions.Generated.<RegexGenerator_g>FE89C4BBA95BC726 BBFA730D496EDD9355321BE5DAEE79F3CE10E7FA17DC7FA64__CreateJwsRegex_0	81.4%	67.6%