chore(deps): pin FluentAssertions to 6.12.0 to keep packages MIT-licensed

CHANGELOG.md

@@ -7,6 +7,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.0.0-rc.2] - 2026-06-06
+
+### Changed
+
+- **License hygiene:** pinned `FluentAssertions` to **6.12.0**, the last
+  MIT-licensed release (7.x+ moved to a commercial Xceed license). This keeps the
+  published `RP2040Sharp.TestKit` package and everything it pulls in MIT-compatible.
+  The TestKit's custom assertions were ported back to the 6.x extension model.
+
 ## [1.0.0-rc.1] - 2026-06-06
 
 First public release candidate. A high-performance RP2040 emulator in modern C#
@@ -45,5 +54,6 @@ First public release candidate. A high-performance RP2040 emulator in modern C#
 - Flash programming uses C# hooks rather than the SSI XIP hardware path.
 - USB host support is CDC-only (sufficient for the MicroPython REPL).
 
-[Unreleased]: https://github.com/begeistert/RP2040Sharp/compare/v1.0.0-rc.1...HEAD
+[Unreleased]: https://github.com/begeistert/RP2040Sharp/compare/v1.0.0-rc.2...HEAD
+[1.0.0-rc.2]: https://github.com/begeistert/RP2040Sharp/compare/v1.0.0-rc.1...v1.0.0-rc.2
 [1.0.0-rc.1]: https://github.com/begeistert/RP2040Sharp/releases/tag/v1.0.0-rc.1

src/RP2040.TestKit/Assertions/CortexM0Assertions.cs

@@ -8,17 +8,14 @@ namespace RP2040.TestKit.Assertions;
 /// <summary>FluentAssertions extension for <see cref="CortexM0Plus"/>.</summary>
 public sealed class CortexM0Assertions : ReferenceTypeAssertions<CortexM0Plus, CortexM0Assertions>
 {
-    private readonly AssertionChain _chain;
-
-    public CortexM0Assertions(CortexM0Plus subject, AssertionChain chain) : base(subject, chain)
-        => _chain = chain;
+    public CortexM0Assertions(CortexM0Plus subject) : base(subject) { }
 
     protected override string Identifier => "cpu";
 
     public AndConstraint<CortexM0Assertions> HaveRegister(int index, uint expected,
         string because = "", params object[] becauseArgs)
     {
-        _chain.BecauseOf(because, becauseArgs)
+        Execute.Assertion.BecauseOf(because, becauseArgs)
             .ForCondition(Subject.Registers[index] == expected)
             .FailWith("Expected R{0} to be 0x{1:X8}{reason}, but found 0x{2:X8}.",
                 index, expected, Subject.Registers[index]);
@@ -28,7 +25,7 @@ public AndConstraint<CortexM0Assertions> HaveRegister(int index, uint expected,
     public AndConstraint<CortexM0Assertions> HavePC(uint expected,
         string because = "", params object[] becauseArgs)
     {
-        _chain.BecauseOf(because, becauseArgs)
+        Execute.Assertion.BecauseOf(because, becauseArgs)
             .ForCondition(Subject.Registers.PC == expected)
             .FailWith("Expected PC to be 0x{0:X8}{reason}, but found 0x{1:X8}.",
                 expected, Subject.Registers.PC);
@@ -38,7 +35,7 @@ public AndConstraint<CortexM0Assertions> HavePC(uint expected,
     public AndConstraint<CortexM0Assertions> HaveSP(uint expected,
         string because = "", params object[] becauseArgs)
     {
-        _chain.BecauseOf(because, becauseArgs)
+        Execute.Assertion.BecauseOf(because, becauseArgs)
             .ForCondition(Subject.Registers.SP == expected)
             .FailWith("Expected SP to be 0x{0:X8}{reason}, but found 0x{1:X8}.",
                 expected, Subject.Registers.SP);
@@ -48,7 +45,7 @@ public AndConstraint<CortexM0Assertions> HaveSP(uint expected,
     public AndConstraint<CortexM0Assertions> HaveCycles(long expected,
         string because = "", params object[] becauseArgs)
     {
-        _chain.BecauseOf(because, becauseArgs)
+        Execute.Assertion.BecauseOf(because, becauseArgs)
             .ForCondition(Subject.Cycles == expected)
             .FailWith("Expected Cycles to be {0}{reason}, but found {1}.",
                 expected, Subject.Cycles);
@@ -74,7 +71,7 @@ public AndConstraint<CortexM0Assertions> HaveOverflowFlag(bool expected,
     private AndConstraint<CortexM0Assertions> HaveFlag(string name, bool actual, bool expected,
         string because, object[] becauseArgs)
     {
-        _chain.BecauseOf(because, becauseArgs)
+        Execute.Assertion.BecauseOf(because, becauseArgs)
             .ForCondition(actual == expected)
             .FailWith("Expected flag {0} to be {1}{reason}, but found {2}.", name, expected, actual);
         return new AndConstraint<CortexM0Assertions>(this);

src/RP2040.TestKit/Assertions/GpioAssertions.cs

@@ -8,17 +8,14 @@ namespace RP2040.TestKit.Assertions;
 /// <summary>FluentAssertions extension for <see cref="GpioPin"/>.</summary>
 public sealed class GpioAssertions : ReferenceTypeAssertions<GpioPin, GpioAssertions>
 {
-    private readonly AssertionChain _chain;
-
-    public GpioAssertions(GpioPin subject, AssertionChain chain) : base(subject, chain)
-        => _chain = chain;
+    public GpioAssertions(GpioPin subject) : base(subject) { }
 
     protected override string Identifier => "pin";
 
     public AndConstraint<GpioAssertions> BeHigh(
         string because = "", params object[] becauseArgs)
     {
-        _chain.BecauseOf(because, becauseArgs)
+        Execute.Assertion.BecauseOf(because, becauseArgs)
             .ForCondition(Subject.DigitalValue)
             .FailWith("Expected GPIO pin to be HIGH{reason}, but it was LOW.");
         return new AndConstraint<GpioAssertions>(this);
@@ -27,7 +24,7 @@ public AndConstraint<GpioAssertions> BeHigh(
     public AndConstraint<GpioAssertions> BeLow(
         string because = "", params object[] becauseArgs)
     {
-        _chain.BecauseOf(because, becauseArgs)
+        Execute.Assertion.BecauseOf(because, becauseArgs)
             .ForCondition(!Subject.DigitalValue)
             .FailWith("Expected GPIO pin to be LOW{reason}, but it was HIGH.");
         return new AndConstraint<GpioAssertions>(this);
@@ -36,7 +33,7 @@ public AndConstraint<GpioAssertions> BeLow(
     public AndConstraint<GpioAssertions> BeOutput(
         string because = "", params object[] becauseArgs)
     {
-        _chain.BecauseOf(because, becauseArgs)
+        Execute.Assertion.BecauseOf(because, becauseArgs)
             .ForCondition(Subject.IsOutput)
             .FailWith("Expected GPIO pin to be configured as OUTPUT{reason}, but it was INPUT.");
         return new AndConstraint<GpioAssertions>(this);
@@ -50,7 +47,7 @@ public AndConstraint<GpioAssertions> BeOutput(
     public AndConstraint<GpioAssertions> BePioOutput(
         string because = "", params object[] becauseArgs)
     {
-        _chain.BecauseOf(because, becauseArgs)
+        Execute.Assertion.BecauseOf(because, becauseArgs)
             .ForCondition(Subject.IsPioOutput)
             .FailWith("Expected GPIO pin to be assigned to a PIO state machine (FUNCSEL=6 or 7){reason}, but it was not.");
         return new AndConstraint<GpioAssertions>(this);
@@ -59,7 +56,7 @@ public AndConstraint<GpioAssertions> BePioOutput(
     public AndConstraint<GpioAssertions> BeInput(
         string because = "", params object[] becauseArgs)
     {
-        _chain.BecauseOf(because, becauseArgs)
+        Execute.Assertion.BecauseOf(because, becauseArgs)
             .ForCondition(!Subject.IsOutput)
             .FailWith("Expected GPIO pin to be configured as INPUT{reason}, but it was OUTPUT.");
         return new AndConstraint<GpioAssertions>(this);

src/RP2040.TestKit/Assertions/UartProbeAssertions.cs

@@ -8,17 +8,14 @@ namespace RP2040.TestKit.Assertions;
 /// <summary>FluentAssertions extension for <see cref="UartProbe"/>.</summary>
 public sealed class UartProbeAssertions : ReferenceTypeAssertions<UartProbe, UartProbeAssertions>
 {
-    private readonly AssertionChain _chain;
-
-    public UartProbeAssertions(UartProbe subject, AssertionChain chain) : base(subject, chain)
-        => _chain = chain;
+    public UartProbeAssertions(UartProbe subject) : base(subject) { }
 
     protected override string Identifier => "uart";
 
     public AndConstraint<UartProbeAssertions> Contain(string expected,
         string because = "", params object[] becauseArgs)
     {
-        _chain.BecauseOf(because, becauseArgs)
+        Execute.Assertion.BecauseOf(because, becauseArgs)
             .ForCondition(Subject.Text.Contains(expected))
             .FailWith("Expected UART output to contain {0}{reason}, but found {1}.",
                 expected, Subject.Text);
@@ -28,7 +25,7 @@ public AndConstraint<UartProbeAssertions> Contain(string expected,
     public AndConstraint<UartProbeAssertions> NotContain(string expected,
         string because = "", params object[] becauseArgs)
     {
-        _chain.BecauseOf(because, becauseArgs)
+        Execute.Assertion.BecauseOf(because, becauseArgs)
             .ForCondition(!Subject.Text.Contains(expected))
             .FailWith("Expected UART output not to contain {0}{reason}, but found {1}.",
                 expected, Subject.Text);
@@ -38,7 +35,7 @@ public AndConstraint<UartProbeAssertions> NotContain(string expected,
     public AndConstraint<UartProbeAssertions> StartWith(string expected,
         string because = "", params object[] becauseArgs)
     {
-        _chain.BecauseOf(because, becauseArgs)
+        Execute.Assertion.BecauseOf(because, becauseArgs)
             .ForCondition(Subject.Text.StartsWith(expected, StringComparison.Ordinal))
             .FailWith("Expected UART output to start with {0}{reason}, but found {1}.",
                 expected, Subject.Text);
@@ -48,7 +45,7 @@ public AndConstraint<UartProbeAssertions> StartWith(string expected,
     public AndConstraint<UartProbeAssertions> BeEmpty(
         string because = "", params object[] becauseArgs)
     {
-        _chain.BecauseOf(because, becauseArgs)
+        Execute.Assertion.BecauseOf(because, becauseArgs)
             .ForCondition(Subject.ByteCount == 0)
             .FailWith("Expected UART to have no output{reason}, but found {0} bytes.", Subject.ByteCount);
         return new AndConstraint<UartProbeAssertions>(this);
@@ -57,7 +54,7 @@ public AndConstraint<UartProbeAssertions> BeEmpty(
     public AndConstraint<UartProbeAssertions> HaveByteCount(int expected,
         string because = "", params object[] becauseArgs)
     {
-        _chain.BecauseOf(because, becauseArgs)
+        Execute.Assertion.BecauseOf(because, becauseArgs)
             .ForCondition(Subject.ByteCount == expected)
             .FailWith("Expected UART to have {0} bytes{reason}, but found {1}.",
                 expected, Subject.ByteCount);
@@ -67,7 +64,7 @@ public AndConstraint<UartProbeAssertions> HaveByteCount(int expected,
     public AndConstraint<UartProbeAssertions> ContainLine(string expected,
         string because = "", params object[] becauseArgs)
     {
-        _chain.BecauseOf(because, becauseArgs)
+        Execute.Assertion.BecauseOf(because, becauseArgs)
             .ForCondition(Subject.Lines.Contains(expected))
             .FailWith("Expected UART output to contain line {0}{reason}.", expected);
         return new AndConstraint<UartProbeAssertions>(this);
@@ -76,7 +73,7 @@ public AndConstraint<UartProbeAssertions> ContainLine(string expected,
     public AndConstraint<UartProbeAssertions> HaveLineCount(int expected,
         string because = "", params object[] becauseArgs)
     {
-        _chain.BecauseOf(because, becauseArgs)
+        Execute.Assertion.BecauseOf(because, becauseArgs)
             .ForCondition(Subject.Lines.Count == expected)
             .FailWith("Expected UART output to have {0} lines{reason}, but found {1}.",
                 expected, Subject.Lines.Count);

src/RP2040.TestKit/Extensions/AssertionExtensions.cs

@@ -1,4 +1,3 @@
-using FluentAssertions.Execution;
 using RP2040.Core.Cpu;
 using RP2040.Peripherals.Gpio;
 using RP2040.TestKit.Assertions;
@@ -11,12 +10,9 @@ namespace RP2040.TestKit.Extensions;
 /// </summary>
 public static class AssertionExtensions
 {
-    public static CortexM0Assertions Should(this CortexM0Plus cpu)
-        => new(cpu, AssertionChain.GetOrCreate());
+    public static CortexM0Assertions Should(this CortexM0Plus cpu) => new(cpu);
 
-    public static UartProbeAssertions Should(this UartProbe probe)
-        => new(probe, AssertionChain.GetOrCreate());
+    public static UartProbeAssertions Should(this UartProbe probe) => new(probe);
 
-    public static GpioAssertions Should(this GpioPin pin)
-        => new(pin, AssertionChain.GetOrCreate());
+    public static GpioAssertions Should(this GpioPin pin) => new(pin);
 }

src/RP2040.TestKit/RP2040.TestKit.csproj

@@ -10,6 +10,7 @@
     <ProjectReference Include="..\RP2040Sharp\RP2040Sharp.csproj" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="FluentAssertions" Version="8.8.0" />
+    <!-- 6.12.0 is the last MIT-licensed release; 7.x+ are under a commercial license. -->
+    <PackageReference Include="FluentAssertions" Version="6.12.0" />
   </ItemGroup>
 </Project>

tests/RP2040Sharp.IntegrationTests/RP2040Sharp.IntegrationTests.csproj

@@ -15,7 +15,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
-    <PackageReference Include="FluentAssertions"               Version="8.8.0" />
+    <PackageReference Include="FluentAssertions"               Version="6.12.0" />
     <PackageReference Include="coverlet.collector"             Version="6.0.4">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>

tests/RP2040Sharp.Tests/RP2040Sharp.Tests.csproj

@@ -13,7 +13,7 @@
 
   <ItemGroup>
     <PackageReference Include="coverlet.collector" Version="6.0.4" />
-    <PackageReference Include="FluentAssertions" Version="8.8.0" />
+    <PackageReference Include="FluentAssertions" Version="6.12.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5" />