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Add an abstract type `SnapshotTestSuite` with a `run_snapshot_tests` driver that handles test iteration, filtering, and skipping. Packages define a marker type, overload a few functions (snapshot_tests, snapshot_expected_dir, snapshot_produce), and get automatic plumbing. Supports filtering by exact name or predicate function, skip lists, and optional pre-snapshot assertions via snapshot_test_extras. The existing test_snapshot API is untouched. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
talf301
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Feb 11, 2026
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| function run_snapshot_tests(suite::SnapshotTestSuite; filter=nothing, skip=String[]) | ||
| cases = snapshot_tests(suite) | ||
| expected = snapshot_expected_dir(suite) | ||
| allow = snapshot_allow_additions(suite) | ||
| pred = _make_filter(filter) |
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Could we maybe also just have a run_snapshot_test syntactic sugar function that runs a single snapshot test
…test
- Change SnapshotTestSuite from abstract type to parameterized struct
SnapshotTestSuite{X}, following the Salsa Keyspace{X} pattern. Users
dispatch on SnapshotTestSuite{:my_symbol} instead of defining/exporting
concrete subtypes.
- Add run_snapshot_test(suite, name) convenience function for running a
single snapshot test by name.
- Update tests to use parameterized types with unique symbols per testset.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Julia requires global method definitions to be at the top level, not inside local scopes like `mktempdir() do ... end` blocks. Use Ref variables at module level to pass test-specific data (cases, expected dirs) into the parameterized type method implementations. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
SnapshotTestSuiteabstract type andrun_snapshot_testsdriver for eliminating snapshot test boilerplatesnapshot_tests,snapshot_expected_dir,snapshot_produce(and optionallysnapshot_test_extras,snapshot_allow_additions)run_snapshot_testshandles iteration,@testsetwrapping, filter (string/function), and skip liststest_snapshotAPI is completely untouched — this is purely additiveUsage
Test plan
🤖 Generated with Claude Code