fix(coverage): throw error if fail to load built-in provider

vitest-dev · Apr 21, 2023 · ad0c81f · ad0c81f
1 parent cbfd2c5
commit ad0c81f
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/packages/vitest/src/integrations/coverage.ts b/packages/vitest/src/integrations/coverage.ts
@@ -17,6 +17,10 @@ async function resolveCoverageProviderModule(options: CoverageOptions | undefine
 
   if (provider === 'c8' || provider === 'istanbul') {
     const { default: coverageModule } = await loader.executeId(CoverageProviderMap[provider])
+
+    if (!coverageModule)
+      throw new Error(`Failed to load ${CoverageProviderMap[provider]}. Default export is missing.`)
+
     return coverageModule
   }