coverage: add tests and accessor for property setup snapshot in MockRegistry

[vbreuss]

This pull request introduces improvements to the handling and testing of property setup snapshots in the MockRegistry class. The main changes include adding a new internal accessor for property setup snapshots, enhancing test coverage for property setup behaviors, and adding comments to clarify code paths for mutation testing tools.

Property setup snapshot improvements

• Added a new internal method GetPropertySetupSnapshot(int memberId) to MockRegistry.Interactions.cs for retrieving the current property setup snapshot by member ID. This method is intended for diagnostics and direct verification in tests.

Test coverage enhancements

• Added multiple new unit tests in MockRegistrySetupSnapshotTests.cs to verify correct behavior of property setup snapshotting, including:
  • Ensuring earlier entries are preserved when resizing the property setup table.
  • Verifying that default setups overwrite previous defaults, but user setups are retained over defaults.
  • Confirming that setups are correctly published to the snapshot table for both direct and scenario-based registrations.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
62.5% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

Test Results

    21 files  ± 0      21 suites  ±0   12m 7s ⏱️ + 1m 4s
 3 933 tests + 5   3 931 ✅ + 5  2 💤 ±0  0 ❌ ±0 
25 549 runs  +35  25 545 ✅ +35  4 💤 ±0  0 ❌ ±0 

Results for commit c9ae6d2. ± Comparison against base commit 18e6beb.

[github-actions]

🚀 Benchmark Results

Details

BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.4 LTS (Noble Numbat)

AMD EPYC 7763 2.45GHz, 1 CPU, 4 logical and 2 physical cores

.NET SDK 10.0.203

[Host] : .NET 10.0.7 (10.0.7, 10.0.726.21808), X64 RyuJIT x86-64-v3
Job=InProcess  Toolchain=InProcessEmitToolchain  IterationCount=15

LaunchCount=1  WarmupCount=10

Method	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Gen1	Allocated	Alloc Ratio
Event_Mockolate	359.6 ns	7.55 ns	7.06 ns	1.00	0.03	0.1254	0.0005	2.05 KB	1.00
Event_Moq	16,092.6 ns	23.75 ns	19.83 ns	44.76	0.85	0.7324	-	12.51 KB	6.09
Event_NSubstitute	5,734.5 ns	42.94 ns	40.17 ns	15.95	0.32	0.5493	0.0076	9.05 KB	4.40
Event_FakeItEasy	211,865.7 ns	1,042.58 ns	975.23 ns	589.32	11.43	0.7324	0.4883	15.39 KB	7.49
Event_Imposter	1,454.0 ns	25.45 ns	23.81 ns	4.04	0.10	0.5379	0.0153	8.8 KB	4.29
Event_TUnitMocks	208.0 ns	5.72 ns	5.35 ns	0.58	0.02	0.0837	0.0002	1.37 KB	0.67

Details

BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.4 LTS (Noble Numbat)

AMD EPYC 7763 2.45GHz, 1 CPU, 4 logical and 2 physical cores

.NET SDK 10.0.203

[Host] : .NET 10.0.7 (10.0.7, 10.0.726.21808), X64 RyuJIT x86-64-v3
Job=InProcess  Toolchain=InProcessEmitToolchain  IterationCount=15

LaunchCount=1  WarmupCount=10

Method	N	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Gen1	Allocated	Alloc Ratio
Indexer_Mockolate	1	922.0 ns	3.85 ns	3.22 ns	1.00	0.00	0.2460	0.0019	4.03 KB	1.00
Indexer_Moq	1	216,790.5 ns	1,625.65 ns	1,520.64 ns	235.14	1.78	0.9766	0.4883	20.37 KB	5.05
Indexer_NSubstitute	1	9,435.6 ns	101.95 ns	95.36 ns	10.23	0.11	0.7782	-	12.78 KB	3.17
Indexer_FakeItEasy	1	12,096.7 ns	83.03 ns	77.67 ns	13.12	0.09	0.8392	0.0305	13.88 KB	3.44
Indexer_Imposter	1	1,038.1 ns	39.89 ns	37.31 ns	1.13	0.04	0.3147	0.0038	5.16 KB	1.28
Indexer_Mockolate	10	2,602.6 ns	49.25 ns	46.07 ns	1.00	0.02	0.3090	-	5.09 KB	1.00
Indexer_Moq	10	230,846.3 ns	2,306.71 ns	2,157.70 ns	88.72	1.71	1.7090	1.4648	29.89 KB	5.88
Indexer_NSubstitute	10	22,656.2 ns	374.16 ns	349.99 ns	8.71	0.20	1.5564	0.0305	25.58 KB	5.03
Indexer_FakeItEasy	10	24,703.0 ns	480.40 ns	449.37 ns	9.49	0.23	2.1667	0.0610	35.47 KB	6.97
Indexer_Imposter	10	2,256.1 ns	52.48 ns	49.09 ns	0.87	0.02	0.4845	0.0076	7.97 KB	1.57

Details

BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.4 LTS (Noble Numbat)

AMD EPYC 9V74 2.60GHz, 1 CPU, 4 logical and 2 physical cores

.NET SDK 10.0.203

[Host] : .NET 10.0.7 (10.0.7, 10.0.726.21808), X64 RyuJIT x86-64-v3
Job=InProcess  Toolchain=InProcessEmitToolchain  IterationCount=15

LaunchCount=1  WarmupCount=10

Method	N	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Gen1	Allocated	Alloc Ratio
Method_Mockolate	1	454.2 ns	5.48 ns	5.12 ns	1.00	0.02	0.1416	0.0010	2.32 KB	1.00
Method_Moq	1	128,539.1 ns	570.34 ns	505.59 ns	283.03	3.30	0.4883	-	14.58 KB	6.28
Method_NSubstitute	1	5,226.4 ns	28.75 ns	26.90 ns	11.51	0.14	0.5569	0.0076	9.12 KB	3.93
Method_FakeItEasy	1	5,436.4 ns	56.95 ns	53.27 ns	11.97	0.17	0.4959	-	8.11 KB	3.50
Method_Imposter	1	540.3 ns	2.04 ns	1.70 ns	1.19	0.01	0.2470	0.0029	4.04 KB	1.74
Method_TUnitMocks	1	694.1 ns	6.85 ns	6.41 ns	1.53	0.02	0.1774	0.0010	2.9 KB	1.25
Method_Mockolate	10	723.2 ns	10.80 ns	10.10 ns	1.00	0.02	0.1545	0.0010	2.53 KB	1.00
Method_Moq	10	133,326.1 ns	472.34 ns	418.72 ns	184.39	2.53	0.9766	0.7324	18.48 KB	7.30
Method_NSubstitute	10	7,725.0 ns	28.17 ns	23.52 ns	10.68	0.15	0.7324	0.0153	12.07 KB	4.77
Method_FakeItEasy	10	8,430.6 ns	61.84 ns	57.84 ns	11.66	0.17	0.9766	0.0305	16.05 KB	6.34
Method_Imposter	10	1,128.9 ns	5.03 ns	4.46 ns	1.56	0.02	0.3376	0.0057	5.52 KB	2.18
Method_TUnitMocks	10	1,765.5 ns	17.35 ns	16.23 ns	2.44	0.04	0.2747	0.0019	4.49 KB	1.77

Details

BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.4 LTS (Noble Numbat)

AMD EPYC 7763 2.71GHz, 1 CPU, 4 logical and 2 physical cores

.NET SDK 10.0.203

[Host] : .NET 10.0.7 (10.0.7, 10.0.726.21808), X64 RyuJIT x86-64-v3
Job=InProcess  Toolchain=InProcessEmitToolchain  IterationCount=15

LaunchCount=1  WarmupCount=10

Method	N	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Gen1	Allocated	Alloc Ratio
Property_Mockolate	1	544.2 ns	8.34 ns	7.39 ns	1.00	0.02	0.1574	0.0010	2.58 KB	1.00
Property_Moq	1	12,383.2 ns	90.37 ns	75.46 ns	22.76	0.33	0.6104	-	10.39 KB	4.03
Property_NSubstitute	1	7,770.1 ns	53.17 ns	47.13 ns	14.28	0.20	0.6866	-	11.45 KB	4.44
Property_FakeItEasy	1	8,655.7 ns	150.34 ns	140.63 ns	15.91	0.33	0.6866	-	11.24 KB	4.36
Property_Imposter	1	458.2 ns	7.02 ns	6.22 ns	0.84	0.02	0.1912	0.0019	3.13 KB	1.21
Property_TUnitMocks	1	780.5 ns	19.41 ns	18.15 ns	1.43	0.04	0.1526	0.0010	2.51 KB	0.97
Property_Mockolate	10	1,095.7 ns	15.12 ns	13.41 ns	1.00	0.02	0.1869	-	3.07 KB	1.00
Property_Moq	10	19,354.9 ns	75.99 ns	67.37 ns	17.67	0.22	1.0986	-	18.28 KB	5.95
Property_NSubstitute	10	17,433.6 ns	208.09 ns	194.64 ns	15.91	0.26	1.2817	0.0305	21.08 KB	6.87
Property_FakeItEasy	10	20,176.0 ns	211.80 ns	198.12 ns	18.42	0.28	1.8616	-	30.81 KB	10.03
Property_Imposter	10	1,192.3 ns	13.03 ns	10.88 ns	1.09	0.02	0.2842	0.0019	4.67 KB	1.52
Property_TUnitMocks	10	2,149.5 ns	11.80 ns	9.21 ns	1.96	0.02	0.2823	-	4.66 KB	1.52

Details

BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.4 LTS (Noble Numbat)

AMD EPYC 7763 2.45GHz, 1 CPU, 4 logical and 2 physical cores

.NET SDK 10.0.203

[Host] : .NET 10.0.7 (10.0.7, 10.0.726.21808), X64 RyuJIT x86-64-v3
Job=InProcess  Toolchain=InProcessEmitToolchain  IterationCount=15

LaunchCount=1  WarmupCount=10

Method	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Gen1	Allocated	Alloc Ratio
Callback_Mockolate	388.6 ns	3.25 ns	3.04 ns	1.00	0.01	0.1197	-	1.96 KB	1.00
Callback_Moq	96,345.3 ns	333.15 ns	295.33 ns	247.97	2.01	0.4883	0.2441	8.88 KB	4.53
Callback_NSubstitute	4,377.2 ns	22.44 ns	20.99 ns	11.27	0.10	0.4730	0.0076	7.74 KB	3.95
Callback_FakeItEasy	4,875.2 ns	23.82 ns	21.12 ns	12.55	0.11	0.4120	0.0153	6.81 KB	3.47
Callback_Imposter	414.8 ns	7.71 ns	7.21 ns	1.07	0.02	0.1454	0.0010	2.38 KB	1.22
Callback_TUnitMocks	587.1 ns	4.80 ns	4.49 ns	1.51	0.02	0.1602	0.0010	2.63 KB	1.34

[github-actions]

This is addressed in release v3.0.0.