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Add test for displayName on React.memo components #18925

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merged 2 commits into from May 15, 2020

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eps1lon
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@eps1lon eps1lon commented May 14, 2020

Summary

Adds a test for display name behavior of

const MemoComponent = React.memo(() => {});
MemoComponent.displayName = "SomeName";

The behavior was implemented in https://github.com/facebook/react/pull/18495/files#diff-ad60306adf3e53077dba1bbeabd57b19R30-R451 but untested. Commenting out the linked lines does not break any test on master.

1 Might need to scroll a bit when opening a link since the highlighted lines are collapsed initially.

Test Plan

n/a

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codesandbox-ci bot commented May 14, 2020

This pull request is automatically built and testable in CodeSandbox.

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Latest deployment of this branch, based on commit 7265700:

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sizebot commented May 14, 2020

No significant bundle size changes to report.

Size changes (stable)

Generated by 🚫 dangerJS against 7265700

@sizebot
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sizebot commented May 14, 2020

No significant bundle size changes to report.

Size changes (experimental)

Generated by 🚫 dangerJS against 7265700

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4 participants