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Get Started Free →dotnet/filter-syntax
Reference data for test filter syntax across all platform and framework combinations: VSTest --filter expressions, MTP filters for MSTest/NUnit/xUnit v3/TUnit, and VSTest-to-MTP filter translation. DO NOT USE directly — loaded by run-tests, mtp-hot-reload, and migrate-vstest-to-mtp when they need filter syntax.
Passed 22 of 22 test cases with the skill, and 11 of 22 without it.
and 12 more in the full report
11 fixed11 passed either way0 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 11 test cases the skill fixed. Same model, same prompt, with and without the skill.
When running NUnit tests via standard `dotnet test`, what is the command-line flag to exclude any test with `TestCategory` set to `Slow`?
| Checked | Without skill | With skill |
|---|---|---|
| The command passes --filter "TestCategory!=Slow" | Missed | Passed |
The instructions your model reads when the skill loads.
Filter syntax depends on the platform and test framework.
dotnet test --filter <EXPRESSION>
Expression syntax: <Property><Operator><Value>[|&<Expression>]
Operators:
| Operator | Meaning |
|---|---|
= | Exact match |
!= | Not exact match |
~ | Contains |
!~ | Does not contain |
Combinators: | (OR), & (AND). Parentheses for grouping: (A|B)&C
Supported properties by framework:
| Framework | Properties |
|---|---|
| MSTest | FullyQualifiedName, Name, ClassName, Priority, TestCategory |
| xUnit | FullyQualifiedName, DisplayName, Traits |
| NUnit | FullyQualifiedName, Name, Priority, TestCategory |
An expression without an operator is treated as FullyQualifiedName~<value>.
Examples (VSTest):
# Run tests whose name contains "LoginTest"
dotnet test --filter "Name~LoginTest"
# Run a specific test class
test cases passed, vs 11 / 22 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.