[and2049]

What does this PR do?

Fixes #15428.

toSatisfy and toIncludeRepeated read the captured expect() value directly instead of going through get_value, so the .resolves / .rejects flags were ignored. The predicate in expect(promise).resolves.toSatisfy(fn) received the Promise object itself, and expect(promise).resolves.toIncludeRepeated(...) threw toIncludeRepeated() requires the expect(value) to be a string. Every other matcher settles the promise first via matcher_prelude.

The fix is the matcher_prelude call at the top of each matcher. The removed lines are the post_match_guard, increment_expect_call_counter, captured_value_get_cached and flags.not() reads that matcher_prelude already performs. These two were the only matchers still bypassing it (grep captured_value_get_cached src/runtime/test_runner/expect/).

The bypass predates the Rust port (same shape in the Zig toSatisfy.zig / toIncludeRepeated.zig), so this is not a regression. The tests are added alongside the existing toSatisfy() and toIncludeRepeated() tests in jest-extended.test.js.

How did you verify your code works?

Added toSatisfy() with .resolves and .rejects and toIncludeRepeated() with .resolves and .rejects to test/js/bun/test/jest-extended.test.js. They cover .resolves, .rejects and .not for both matchers, and assert that the failure message reports the settled value instead of the Promise.

• USE_SYSTEM_BUN=1 bun test test/js/bun/test/jest-extended.test.js -t "resolves and .rejects": both new tests fail with the errors from the issue (checked on 1.3.14 and 1.4.0).
• bun bd test test/js/bun/test/jest-extended.test.js: 60 pass, 0 fail.
• bun bd test test/js/bun/test/expect.test.js: 416 pass, 2 todo, 0 fail.
• bun bd test test/js/bun/test/expect-extend.test.js and expect-assertions.test.ts: pass.
• Changing the expected Received: text in the new tests makes them fail on the fixed build, so the message assertions are live.

[claude]

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Walkthrough

Changes

Matcher prelude updates

Layer / File(s)	Summary
Standardize matcher value extraction src/runtime/test_runner/expect/toSatisfy.rs, src/runtime/test_runner/expect/toIncludeRepeated.rs	Both matchers now use matcher_prelude for values and negation. toIncludeRepeated retains a standard string type error.
Validate promise matcher behavior test/js/bun/test/jest-extended.test.js	Tests cover .resolves, .rejects, .not, and settled-value failure messages for both matchers.

Suggested reviewers: dylan-conway, jarred-sumner, robobun

Merge Risk: 🟡 Moderate · up to 1674f

The matchers now evaluate settled promise values for resolves, rejects, and negated assertions. However, several new failure-message tests use synchronous throw assertions around asynchronous matcher calls, so the suite may fail or fail to validate the intended diagnostics until those assertions await the matcher promises.

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies the main change: settling .resolves and .rejects for toSatisfy and toIncludeRepeated.
Description check	✅ Passed	The description includes both required sections. It explains the fix, affected matchers, linked issue, test coverage, and verification results.
Linked Issues check	✅ Passed	The changes satisfy issue #15428 by routing toSatisfy through matcher_prelude, so .resolves, .rejects, and .not use the settled promise value. The same fix is applied to toIncludeRepeated, with tests …
Out of Scope Changes check	✅ Passed	The code and test changes remain within scope. They address promise settlement, negation handling, and failure messages for the affected matchers described by the pull request objective.

Full details: Linked Issues check

Explanation

The changes satisfy issue #15428 by routing toSatisfy through matcher_prelude, so .resolves, .rejects, and .not use the settled promise value. The same fix is applied to toIncludeRepeated, with tests covering the related behavior.

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Actionable comments posted: 1

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Inline comments:
In `@test/js/bun/test/jest-extended.test.js`:
- Around line 202-204: Update the asynchronous matcher failure assertions around
the Promise-returning callbacks to use rejects.toThrow instead of wrapping them
with synchronous toThrow. Apply this to the assertions at the referenced test
locations while preserving each expected error message.

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📒 Files selected for processing (3)

• src/runtime/test_runner/expect/toIncludeRepeated.rs
• src/runtime/test_runner/expect/toSatisfy.rs
• test/js/bun/test/jest-extended.test.js

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[RedesignedRobot]

I checked this on main 017b243: it merges cleanly and fixes the repro from #15428 (0 of 2 passing before, 2 of 2 after).

Built and tested with Claude Opus 5.5.