chore(deps-dev): bump simplecov from 1.0.0 to 1.0.1

[dependabot]

Bumps simplecov from 1.0.0 to 1.0.1.

Release notes

Sourced from simplecov's releases.

v1.0.1

What's Changed

• Fix NoMethodError in formatters= for non-Array arguments by @​koic in simplecov-ruby/simplecov#1224
• Explicitly write formatter's status message to STDERR by @​viralpraxis in simplecov-ruby/simplecov#1225

New Contributors

• @​viralpraxis made their first contribution in simplecov-ruby/simplecov#1225

Full Changelog: simplecov-ruby/simplecov@v1.0.0...v1.0.1

Changelog

Sourced from simplecov's changelog.

1.0.1 (2026-07-14)

Enhancements

• The gem now ships type signatures under sig/, covering the public API: the configuration DSL (including the criterion-scoped coverage block and the legacy deprecated verbs), the Result / FileList / SourceFile / CoverageStatistics read API that formatter authors consume, the formatter and filter class hierarchies, exit codes, and the ParallelAdapters::Base contract. Internal classes carry repository-only skeleton signatures (sig/internal/, excluded from the gem package) so the entire codebase type-checks under Steep in strict mode, while the shipped signature payload stays small. Signatures are checked with rbs validate and steep check as part of the default rake task. RBS and Steep users no longer need the third-party signatures from ruby/gem_rbs_collection, which cover the 0.22 API and predate 1.0's configuration redesign.

Bugfixes

• Branch tuples synthesized for tracked-but-unloaded files now match Ruby's Coverage exactly for elsif and for if arms with empty bodies. StaticCoverageExtractor attributed the outer else arm of an elsif to the clause's body rather than the whole clause, and an empty if then-body to the whole node rather than Coverage's zero-width point at the predicate's end. Since resultset merges combine branch arms by their exact location, a simulated entry merging with a real one for the same file (parent and worker under Minitest's parallelize, or RSpec and Minitest suites collated together) produced phantom, permanently-missed branch arms. A new differential spec now pins every branch construct tuple-for-tuple against Ruby's Coverage — which promptly caught that CRuby 3.4 changed several of these conventions, so the extractor now emits whichever shape the running Ruby's Coverage uses (on 3.2/3.3: elsif clause ranges end at the chain's last content rather than the shared end, empty if/else/when bodies fall back to enclosing ranges, and empty while/in bodies collapse to points). Reported with an exemplary diagnosis by @​hasghari. See #1226.
• merge_subprocesses no longer silently drops all worker coverage under Minitest's fork-based parallelize(workers: N) (the setup the rails profile exists for). When Minitest's autorun was armed before SimpleCov.start — which is how rails test loads — SimpleCov deferred its report to Minitest.after_run, and forked workers inherited that deferral even though Minitest pins its after_run hook to the parent's pid, so no exit path in the worker ever stored its resultset. Workers now reset the inherited at_exit state on fork and re-arm their own hook, so their resultsets are stored and merged as documented. Reported with an exemplary diagnosis by @​hasghari. See #1227.
• Fixed SimpleCov.formatters= raising NoMethodError when given a single formatter instead of an Array — a regression from 0.22.x, where MultiFormatter.new normalized the value internally. This restores the long-documented SimpleCov.formatters = SimpleCov::Formatter::MultiFormatter.new([...]) pattern, in which MultiFormatter.new returns a Class rather than an Array. The regression surfaced in ruby/ruby's CI through net-imap's test helper. Thanks @​koic. See #1224.
• Formatter status lines ("Coverage report generated for X") and threshold-enforcement output (violation reports, "SimpleCov failed with exit N") no longer route through Kernel#warn. They still print to stderr, but they are program output rather than Ruby warnings, so Warning.warn hooks — warning trackers and raise-on-warning test setups — no longer intercept them as unaddressable noise, and threshold failure explanations now survive ruby -W0, which previously reduced a failing check to a bare exit code with no explanation. Genuine warnings (deprecations, dropped-file notices, parse failures) still use warn. Suppression remains explicit: silent: true for formatter status lines, print_errors false for enforcement output. Thanks @​viralpraxis. See #1225.

Commits

• ab1b6d4 Bump version to 1.0.1
• cfb58a2 Emit branch tuples matching the running Ruby's Coverage conventions
• 56ed0be Match Coverage's branch tuples for elsif and empty if bodies
• bee8c3e Store forked worker coverage when Minitest owns the exit hook
• ead027d Keep enforcement output out of the Warning subsystem
• 7274905 Explicitly write formatter's status message to STDERR
• 26c8c42 Ship RBS signatures checked by Steep
• c903a2a Fix NoMethodError in formatters= for non-Array arguments
• See full diff in compare view

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[dependabot]

Superseded by #290.