mockAllConfigs() — react Function Reference

Architecture documentation for the mockAllConfigs() function in setupHostConfigs.js from the react codebase.

Function javascript BabelCompiler Optimization

Entity Profile

BabelCompiler→ Optimization→ mockAllConfigs() — react Function Reference

Dependency Diagram

graph TD
  c6ea4dc2_6e23_0a2d_48aa_08e82ffba04a["mockAllConfigs()"]
  453c2a4b_eadd_4b72_cc97_406b0eb158f2["setupHostConfigs.js"]
  c6ea4dc2_6e23_0a2d_48aa_08e82ffba04a -->|defined in| 453c2a4b_eadd_4b72_cc97_406b0eb158f2
  style c6ea4dc2_6e23_0a2d_48aa_08e82ffba04a fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

scripts/jest/setupHostConfigs.js lines 188–213

function mockAllConfigs(rendererInfo) {
  configPaths.forEach(path => {
    // We want the reconciler to pick up the host config for this renderer.
    jest.mock(path, () => {
      let idx = path.lastIndexOf('/');
      let forkPath = path.slice(0, idx) + '/forks' + path.slice(idx);
      let parts = rendererInfo.shortName.split('-');
      while (parts.length) {
        try {
          const candidate = `${forkPath}.${parts.join('-')}.js`;
          fs.statSync(nodePath.join(process.cwd(), 'packages', candidate));
          return jest.requireActual(candidate);
        } catch (error) {
          if (error.code !== 'ENOENT') {
            throw error;
          }
          // try without a part
        }
        parts.pop();
      }
      throw new Error(
        `Expected to find a fork for ${path} but did not find one.`
      );
    });
  });
}