I am glad to announce the newest version of NSubstitute.Analyzers comes with “introduce substitute” refactoring, which allows you to automatically create substitutes for constructor arguments as fields or local variables. As an image is worth a thousand words here is a quick demo of C# version
and VisualBasic one
NSubstitute.Analyzers
Performance improvements in NSubstitute.Analyzers 1.0.11
1. Introduction
I am glad to announce that the latest release of NSubstitute.Analyzers (apart from some bugfixes) brings a lot of performance and memory usage improvements for most of the analyzers. The benchmark results shown below should give you enough information about the speed and memory consumption of the newest version of the library. If you are interested in actual changes behind these results please take a look at this pull request.
2. Benchmark comparision of NSubstitute.Analyzers.CSharp
| Analyzer | Mean (us) | Error (us) | StdDev (us) | Gen 0 | Gen 1 | Allocated (KB) |
|---|---|---|---|---|---|---|
| CallInfoAnalyzer | 1,897.0 | 5.646 | 5.2814 | 136.7188 | 11.7188 | 424.54 |
| ConflictingArgumentAssignmentsAnalyzer | 554.2 | 1.018 | 0.9524 | 33.2031 | 1.9531 | 103.47 |
| NonSubstitutableMemberAnalyzer | 2,466.9 | 9.317 | 8.2596 | 179.6875 | 15.6250 | 560.33 |
| NonSubstitutableMemberReceivedAnalyzer | 644.4 | 2.280 | 1.9039 | 31.2500 | 6.8359 | 96.27 |
| NonSubstitutableMemberWhenAnalyzer | 995.9 | 2.320 | 1.9370 | 37.1094 | 7.8125 | 116.74 |
| ReEntrantSetupAnalyzer | 57,979.0 | 196.824 | 174.4794 | 2333.3333 | – | 7175.61 |
| SubstituteAnalyzer | 1,960.4 | 8.197 | 7.2666 | 89.8438 | 19.5313 | 343.67 |
| UnusedReceivedAnalyzer | 524.0 | 1.671 | 1.5630 | 29.2969 | 1.9531 | 92.45 |
| Analyzer | Mean (us) | Error (us) | StdDev (us) | Gen 0 | Gen 1 | Allocated (KB) |
|---|---|---|---|---|---|---|
| CallInfoAnalyzer | 1,828.8 | 5.599 | 4.963 | 123.0469 | 11.7188 | 379.78 |
| ConflictingArgumentAssignmentsAnalyzer | 510.3 | 1.973 | 1.846 | 33.2031 | 1.9531 | 102.76 |
| NonSubstitutableMemberAnalyzer | 766.0 | 2.798 | 2.336 | 39.0625 | 8.7891 | 122.27 |
| NonSubstitutableMemberReceivedAnalyzer | 600.6 | 3.411 | 3.191 | 27.3438 | 5.8594 | 85.82 |
| NonSubstitutableMemberWhenAnalyzer | 866.0 | 3.144 | 2.941 | 34.1797 | 9.7656 | 107.87 |
| ReEntrantSetupAnalyzer | 7,442.0 | 34.067 | 31.866 | 281.2500 | 15.6250 | 870.18 |
| SubstituteAnalyzer | 1,870.2 | 29.787 | 27.863 | 87.8906 | 23.4375 | 346.09 |
| UnusedReceivedAnalyzer | 482.1 | 1.705 | 1.511 | 25.8789 | 1.9531 | 80.96 |
3. Benchmark comparision of NSubstitute.Analyzers.VisualBasic
| Method | Mean (ms) | Error (ms) | StdDev (ms) | Gen 0 | Gen 1 | Allocated (KB) |
|---|---|---|---|---|---|---|
| CallInfoAnalyzer | 3.459 | 0.0137 | 0.0121 | 156.2500 | 11.7188 | 484.15 |
| ConflictingArgumentAssignmentsAnalyzer | 1.279 | 0.0103 | 0.0086 | 21.4844 | 1.9531 | 69.15 |
| NonSubstitutableMemberAnalyzer | 1.975 | 0.0108 | 0.0090 | 35.1563 | 7.8125 | 108 |
| NonSubstitutableMemberReceivedAnalyzer | 1.287 | 0.0070 | 0.0065 | 13.6719 | 1.9531 | 47.46 |
| NonSubstitutableMemberWhenAnalyzer | 1.589 | 0.0103 | 0.0092 | 25.3906 | 5.8594 | 82.72 |
| ReEntrantSetupAnalyzer | 54.131 | 0.2320 | 0.1937 | 3600.0000 | – | 11139.45 |
| SubstituteAnalyzer | 3.615 | 0.0168 | 0.0149 | 105.4688 | 23.4375 | 393.13 |
| UnusedReceivedAnalyzer | 1.306 | 0.0258 | 0.0528 | 13.6719 | 1.9531 | 43.3 |
| Analyzer | Mean (ms) | Error (ms) | StdDev (ms) | Gen 0 | Gen 1 | Allocated (KB) |
|---|---|---|---|---|---|---|
| CallInfoAnalyzer | 3.737 | 0.0878 | 0.1110 | 152.3438 | 11.7188 | 471.79 |
| ConflictingArgumentAssignmentsAnalyzer | 1.402 | 0.0266 | 0.0285 | 21.4844 | 1.9531 | 68.36 |
| NonSubstitutableMemberAnalyzer | 1.543 | 0.0264 | 0.0247 | 25.3906 | 5.8594 | 81 |
| NonSubstitutableMemberReceivedAnalyzer | 1.213 | 0.0051 | 0.0048 | 13.6719 | 1.9531 | 45.43 |
| NonSubstitutableMemberWhenAnalyzer | 1.475 | 0.0055 | 0.0051 | 27.3438 | 7.8125 | 85.25 |
| ReEntrantSetupAnalyzer | 7.044 | 0.0236 | 0.0209 | 265.6250 | 7.8125 | 837.14 |
| SubstituteAnalyzer | 3.333 | 0.0912 | 0.1186 | 101.5625 | 23.4375 | 377.16 |
| UnusedReceivedAnalyzer | 1.102 | 0.0067 | 0.0062 | 11.7188 | – | 40.24 |
NSubstitute.Analyzers 1.0.0 released
A while ago I’ve announced a release of the first beta package of NSubstitute.Analyzers. Now, 4 months later I am happy to say that the first stable version is available for download. As usual, analyzers comes with two flavors:
Both of them come together with 19 diagnostics, which will warn you against common misusages of NSubstitue API. Feel free to grab them from NuGet and try them in your project. In case of any issues don’t hestitate to report a bug via GitHub issue tracker.
Announcing NSubstitute.Analyzers (beta)
1. Introduction
I am glad to announce that yesterday, together with NSubstitute team we released first beta version of Roslyn analyzers for NSubstitute – NSubstitute.Analyzers. The analyzers come in two flavors: NSubstitute.Analyzers.CSharp and NSubstitute.Analyzers.VisualBasic. Feel free to grab them from NuGet and try them in your project.
2. Diagnostics
As for today analyzers can detect two most common misusages of NSubstitute:
- non-virtual call setup
- Received used without following method call
Feels free to suggest additional diagnostic you would like to have in the package.