[dotnet-sdk-11.0.100-preview.7.26366.102] GlobaltoolsNETCore21Part03 execute "dotnet vstest" failed with error: Expected: <Decimal 14.1M> But was: <Decimal 14.099999999999999644728632120M>.

[Junjun-zhao]

Description

When running unittest GlobaltoolsNETCore21Part03 on the latest build dotnet-sdk-11.0.100-preview.7.26366.102, there is a case failed with error: Expected: <Decimal 14.1M> But was: <Decimal 14.099999999999999644728632120M>.

Reproduction Steps

Machine with dotnet-sdk-11.0.100-preview.7.26366.102 installed only and set environment variable “DOTNET_ROLL_FORWARD_ON_NO_CANDIDATE_FX” to 2.

1. Run cmd in "C:\Users\test01\Desktop\GlobalToolsNETCore21Part03Test05".
2. Execute command: "dotnet vstest FSharpLint.Core.Tests.dll".

Expected behavior

Passed! - Failed: 0, Passed: 577, Skipped: 0, Total: 577.

Actual behavior

Failed Decimal [103 ms]

  Error Message:
     Expected: <Decimal 14.1M>
  But was:  <Decimal 14.099999999999999644728632120M>
  Stack Trace:
     at TestHintParser.TestConstantParser.Decimal() in C:\AppCompat\Unitest\FSharpLint-master\tests\FSharpLint.Core.Tests\Framework\TestHintParser.fs:line 352

Failed!  - Failed:     1, Passed:   576, Skipped:     0, Total:   577, Duration: 48 s - FSharpLint.Core.Tests.dll (netcoreapp2.1)

Regression?

Yes

Verify Scenarios:
1). Windows 11 24H2 AMD64 + dotnet-sdk-11.0.100-preview.7.26363.123: Pass
2). Windows 11 24H2 AMD64 + dotnet-sdk-11.0.100-preview.7.26366.102: Fail

Known Workarounds

No response

Configuration

Application Name: GlobaltoolsNETCore21Part03, NetTopologySuite, CryptoExchangeNet
OS: Windows 11 24H2
CPU: X64
.NET Build Number: dotnet-sdk-11.0.100-preview.7.26366.102
App & Source checking at: https://devdiv.visualstudio.com/DevDiv/_workitems/edit/3035127

Other information

dotnet --info

.NET SDK:
 Version:           11.0.100-preview.7.26366.102
 Commit:            d2b524965e
 Workload version:  11.0.100-manifests.a03339c4
 MSBuild version:   18.10.0-1.26366.102+d2b524965

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.26100
 OS Platform: Windows
 RID:         win-x64
 Base Path:   C:\Program Files\dotnet\sdk\11.0.100-preview.7.26366.102\

.NET workloads installed:
There are no installed workloads to display.
Configured to use workload sets when installing new manifests.
No workload sets are installed. Run "dotnet workload restore" to install a workload set.

Host:
  Version:      11.0.0-preview.7.26366.102
  Architecture: x64
  Commit:       d2b524965e

.NET SDKs installed:
  11.0.100-preview.7.26366.102 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 11.0.0-preview.7.26366.102 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 11.0.0-preview.7.26366.102 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 11.0.0-preview.7.26366.102 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

@dotnet-actwx-bot @dotnet/compat

[dotnet-policy-service]

Tagging subscribers to this area: @dotnet/area-system-numerics
See info in area-owners.md if you want to be subscribed.

[huoyaoyuan]

Possibly related to #130566 if conversion between decimal and other floating-point types is involved.