fix: skip IMockSetup<T> parent for interfaces with only static abstract events

[vbreuss]

This pull request improves the handling of static abstract events in mock generation and adds targeted tests to prevent variable name collisions and ensure correct code generation. The main changes focus on updating interface inheritance logic in the source generator and expanding test coverage.

Source generator improvements

• Updated the logic in Sources.MockClass.cs so that generated IMockSetupFor and IMockVerifyFor interfaces only inherit from base mock interfaces if the target interface does not have static members or static events, preventing incorrect inheritance for interfaces with static abstract events.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% 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   9m 49s ⏱️ -5s
 3 847 tests +1   3 846 ✅ +1  1 💤 ±0  0 ❌ ±0 
25 055 runs  +3  25 054 ✅ +3  1 💤 ±0  0 ❌ ±0 

Results for commit fd7033b. ± Comparison against base commit 22dfeb1.

[github-actions]

🚀 Benchmark Results

Details

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

Intel Xeon Platinum 8370C CPU 2.80GHz, 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-v4
Job=InProcess  Toolchain=InProcessEmitToolchain  IterationCount=15

LaunchCount=1  WarmupCount=10

Method	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Gen1	Allocated	Alloc Ratio
Event_Mockolate	439.6 ns	6.06 ns	5.67 ns	1.00	0.02	0.0834	0.0005	2.05 KB	1.00
Event_Moq	14,747.3 ns	34.85 ns	30.90 ns	33.55	0.42	0.4883	-	12.51 KB	6.09
Event_NSubstitute	5,839.9 ns	12.88 ns	12.05 ns	13.29	0.17	0.3662	-	9.05 KB	4.40
Event_FakeItEasy	186,934.4 ns	1,010.63 ns	895.90 ns	425.33	5.65	0.4883	0.2441	15.39 KB	7.49
Event_Imposter	1,680.5 ns	27.83 ns	26.04 ns	3.82	0.07	0.3586	0.0095	8.8 KB	4.29
Event_TUnitMocks	258.5 ns	6.62 ns	6.20 ns	0.59	0.02	0.0558	-	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	957.7 ns	11.58 ns	10.26 ns	1.00	0.01	0.2460	0.0019	4.03 KB	1.00
Indexer_Moq	1	210,903.0 ns	686.32 ns	573.11 ns	220.23	2.33	0.9766	0.4883	20.25 KB	5.02
Indexer_NSubstitute	1	9,196.2 ns	40.08 ns	37.49 ns	9.60	0.11	0.7782	-	12.84 KB	3.18
Indexer_FakeItEasy	1	11,648.6 ns	53.22 ns	49.78 ns	12.16	0.13	0.8392	0.0305	13.88 KB	3.44
Indexer_Imposter	1	965.4 ns	15.12 ns	12.63 ns	1.01	0.02	0.3147	0.0048	5.16 KB	1.28
Indexer_Mockolate	10	2,504.0 ns	37.70 ns	35.27 ns	1.00	0.02	0.3090	-	5.09 KB	1.00
Indexer_Moq	10	222,154.5 ns	382.41 ns	339.00 ns	88.74	1.22	1.7090	1.4648	28.64 KB	5.63
Indexer_NSubstitute	10	23,076.3 ns	62.97 ns	58.91 ns	9.22	0.13	1.5564	0.0305	25.63 KB	5.04
Indexer_FakeItEasy	10	25,461.4 ns	165.85 ns	155.14 ns	10.17	0.15	2.1667	0.0610	35.47 KB	6.97
Indexer_Imposter	10	2,236.7 ns	9.97 ns	9.32 ns	0.89	0.01	0.4845	0.0076	7.97 KB	1.57

Details

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

Intel Xeon Platinum 8370C CPU 2.80GHz (Max: 2.79GHz), 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-v4
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	489.1 ns	16.90 ns	15.80 ns	1.00	0.04	0.0944	-	2.32 KB	1.00
Method_Moq	1	136,893.8 ns	1,242.28 ns	1,101.25 ns	280.15	8.86	0.4883	0.2441	14.74 KB	6.35
Method_NSubstitute	1	5,950.1 ns	28.45 ns	25.22 ns	12.18	0.38	0.3662	-	9.12 KB	3.93
Method_FakeItEasy	1	6,086.2 ns	55.80 ns	52.20 ns	12.46	0.40	0.3281	0.0153	8.12 KB	3.50
Method_Imposter	1	594.2 ns	16.39 ns	15.33 ns	1.22	0.05	0.1640	0.0019	4.04 KB	1.74
Method_TUnitMocks	1	692.2 ns	22.48 ns	21.03 ns	1.42	0.06	0.1183	0.0010	2.9 KB	1.25
Method_Mockolate	10	872.1 ns	12.46 ns	11.05 ns	1.00	0.02	0.1030	-	2.53 KB	1.00
Method_Moq	10	142,400.4 ns	616.67 ns	546.66 ns	163.31	2.08	0.7324	0.4883	18.64 KB	7.36
Method_NSubstitute	10	8,639.1 ns	91.33 ns	85.43 ns	9.91	0.15	0.4883	-	12.07 KB	4.77
Method_FakeItEasy	10	9,502.3 ns	107.88 ns	100.91 ns	10.90	0.17	0.6409	-	16.04 KB	6.34
Method_Imposter	10	1,284.7 ns	32.02 ns	29.95 ns	1.47	0.04	0.2251	0.0038	5.52 KB	2.18
Method_TUnitMocks	10	2,153.1 ns	20.66 ns	19.32 ns	2.47	0.04	0.1831	-	4.49 KB	1.77

Details

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

AMD EPYC 9V74 2.87GHz, 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	564.9 ns	1.74 ns	1.36 ns	1.00	0.00	0.1574	0.0010	2.58 KB	1.00
Property_Moq	1	10,366.1 ns	87.75 ns	77.79 ns	18.35	0.14	0.6104	-	10.5 KB	4.07
Property_NSubstitute	1	6,781.4 ns	74.04 ns	69.26 ns	12.01	0.12	0.6943	0.0076	11.45 KB	4.44
Property_FakeItEasy	1	7,055.7 ns	77.80 ns	68.97 ns	12.49	0.12	0.6866	-	11.24 KB	4.36
Property_Imposter	1	448.3 ns	8.06 ns	7.15 ns	0.79	0.01	0.1912	0.0019	3.13 KB	1.21
Property_TUnitMocks	1	751.3 ns	13.82 ns	12.25 ns	1.33	0.02	0.1526	0.0010	2.51 KB	0.97
Property_Mockolate	10	1,068.4 ns	22.56 ns	20.00 ns	1.00	0.03	0.1869	-	3.07 KB	1.00
Property_Moq	10	16,343.5 ns	93.08 ns	87.07 ns	15.30	0.28	1.0986	-	18.39 KB	5.99
Property_NSubstitute	10	15,720.0 ns	189.53 ns	177.28 ns	14.72	0.31	1.2817	0.0305	21.08 KB	6.87
Property_FakeItEasy	10	17,110.0 ns	121.72 ns	107.90 ns	16.02	0.30	1.8616	-	30.81 KB	10.03
Property_Imposter	10	1,058.2 ns	3.25 ns	3.04 ns	0.99	0.02	0.2842	0.0019	4.67 KB	1.52
Property_TUnitMocks	10	2,198.9 ns	8.92 ns	8.35 ns	2.06	0.04	0.2823	-	4.66 KB	1.52

Details

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

AMD EPYC 9V74 2.87GHz, 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	409.7 ns	2.13 ns	1.78 ns	1.00	0.01	0.1197	-	1.96 KB	1.00
Callback_Moq	70,424.3 ns	523.99 ns	464.51 ns	171.90	1.31	0.4883	0.2441	8.88 KB	4.53
Callback_NSubstitute	4,158.6 ns	89.87 ns	84.06 ns	10.15	0.20	0.4730	0.0076	7.74 KB	3.95
Callback_FakeItEasy	4,349.2 ns	87.62 ns	81.96 ns	10.62	0.20	0.4120	0.0153	6.81 KB	3.47
Callback_Imposter	436.2 ns	2.51 ns	2.34 ns	1.06	0.01	0.1454	0.0010	2.38 KB	1.22
Callback_TUnitMocks	719.7 ns	10.34 ns	9.67 ns	1.76	0.02	0.1602	0.0010	2.63 KB	1.34

[github-actions]

This is addressed in release v3.0.0.