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[heft-jest-plugin] Fix watch mode failing on Jest 30 #6200

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[heft-jest-plugin] Fix watch mode failing on Jest 30 #6200

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74fd719
[heft-jest-plugin] Fix watch mode on Jest 30 (#6199)
farzaneh-wm Nov 12, 2026
1af1107
[heft-jest-plugin] Use normalized Jest config for watch inputs and ke…
farzaneh-wm Nov 13, 2026
8bb4d5f
[heft-jest-plugin] Respect Jest watch ignore patterns, resolve symlin…
farzaneh-wm Nov 13, 2026
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11 changes: 11 additions & 0 deletions ...on/changes/@rushstack/heft-jest-plugin/farzaneh-wm-fix-jest30-watch_2026-11-11-17-11.json
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Original file line number Diff line number Diff line change
@@ -0,0 +1,11 @@
{
"changes": [
{
"packageName": "@rushstack/heft-jest-plugin",
"comment": "Fix watch mode (`heft test-watch`) failing on Jest 30 with \"Cannot find module '@jest/core/build/watch.js'\". Heft now drives watch mode and reruns the test suite through Jest's public `runCLI` API when files under the Jest `roots` change, ignoring paths that match `modulePathIgnorePatterns` or `watchPathIgnorePatterns`. Each rerun runs the full test suite, and Jest's interactive watch keys and `watchPlugins` are no longer used in watch mode.",
"type": "patch"
}
],
"packageName": "@rushstack/heft-jest-plugin",
"email": "95686816+farzaneh-wm@users.noreply.github.com"
}
2 changes: 1 addition & 1 deletion heft-plugins/heft-jest-plugin/heft-plugin.json
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Expand Up @@ -34,7 +34,7 @@
"longName": "--find-related-tests",
"parameterKind": "stringList",
"argumentName": "SOURCE_FILE",
"description": "Find and run the tests that cover a source file that was passed in as an argument. This corresponds to the \"--findRelatedTests\" parameter in Jest's documentation. This parameter is not compatible with watch mode."
"description": "Find and run the tests that cover a source file that was passed in as an argument. This corresponds to the \"--findRelatedTests\" parameter in Jest's documentation. In watch mode, the same related tests are run again whenever the test inputs change."
},
{
"longName": "--log-heap-usage",
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