first commit

test/integration/mixed-ssg-serverprops-error/pages/index.js

@@ -0,0 +1,13 @@
+export const getStaticProps = async () => {
+  return {
+    props: { world: 'world' },
+  }
+}
+
+export const getServerSideProps = async () => {
+  return {
+    props: { world: 'world' },
+  }
+}
+
+export default ({ world }) => <p>Hello {world}</p>

test/integration/mixed-ssg-serverprops-error/pages/index.js.alt

@@ -0,0 +1,13 @@
+export const getStaticPaths = async () => {
+  return {
+    props: { world: 'world' }, fallback: true
+  }
+}
+
+export const getServerSideProps = async () => {
+  return {
+    props: { world: 'world' }
+  }
+}
+
+export default ({ world }) => <p>Hello {world}</p>

test/integration/mixed-ssg-serverprops-error/test/index.test.ts

@@ -0,0 +1,127 @@
+/* eslint-env jest */
+
+import fs from 'fs-extra'
+import { join } from 'path'
+import { nextBuild } from 'next-test-utils'
+import { SERVER_PROPS_SSG_CONFLICT } from 'next/dist/lib/constants'
+
+const appDir = join(__dirname, '..')
+const indexPage = join(appDir, 'pages/index.js')
+const indexPageBak = `${indexPage}.bak`
+
+describe('Mixed getStaticProps and getServerSideProps error', () => {
+  ;(process.env.TURBOPACK_DEV ? describe.skip : describe)(
+    'production mode',
+    () => {
+      // Uses Babel, not supported in Turbopack.
+      ;(process.env.IS_TURBOPACK_TEST ? it.skip : it)(
+        'should error with getStaticProps but no default export',
+        async () => {
+          // TODO: remove after investigating why dev swc build fails here
+          await fs.writeFile(
+            join(appDir, '.babelrc'),
+            '{ "presets": ["next/babel"] }'
+          )
+          await fs.move(indexPage, indexPageBak)
+          await fs.writeFile(
+            indexPage,
+            `
+      export function getStaticProps() {
+        return {
+          props: {}
+        }
+      }
+    `
+          )
+          const { stderr } = await nextBuild(appDir, [], { stderr: true })
+          await fs.remove(join(appDir, '.babelrc'))
+          await fs.remove(indexPage)
+          await fs.move(indexPageBak, indexPage)
+          // eslint-disable-next-line jest/no-standalone-expect
+          expect(stderr).toContain(
+            'found page without a React Component as default export in'
+          )
+        }
+      )
+
+      // Uses Babel, not supported in Turbopack.
+      ;(process.env.IS_TURBOPACK_TEST ? it.skip : it)(
+        'should error when exporting both getStaticProps and getServerSideProps',
+        async () => {
+          // TODO: remove after investigating why dev swc build fails here
+          await fs.writeFile(
+            join(appDir, '.babelrc'),
+            '{ "presets": ["next/babel"] }'
+          )
+          const { stderr } = await nextBuild(appDir, [], { stderr: true })
+          await fs.remove(join(appDir, '.babelrc'))
+          // eslint-disable-next-line jest/no-standalone-expect
+          expect(stderr).toContain(SERVER_PROPS_SSG_CONFLICT)
+        }
+      )
+
+      // Uses Babel, not supported in Turbopack.
+      ;(process.env.IS_TURBOPACK_TEST ? it.skip : it)(
+        'should error when exporting both getStaticPaths and getServerSideProps',
+        async () => {
+          // TODO: remove after investigating why dev swc build fails here
+          await fs.writeFile(
+            join(appDir, '.babelrc'),
+            '{ "presets": ["next/babel"] }'
+          )
+          await fs.move(indexPage, indexPageBak)
+          await fs.writeFile(
+            indexPage,
+            `
+      export const getStaticPaths = async () => {
+        return {
+          props: { world: 'world' }, fallback: true
+        }
+      }
+
+      export const getServerSideProps = async () => {
+        return {
+          props: { world: 'world' }
+        }
+      }
+
+      export default ({ world }) => <p>Hello {world}</p>
+    `
+          )
+          const { stderr, code } = await nextBuild(appDir, [], { stderr: true })
+          await fs.remove(join(appDir, '.babelrc'))
+          await fs.remove(indexPage)
+          await fs.move(indexPageBak, indexPage)
+          // eslint-disable-next-line jest/no-standalone-expect
+          expect(code).toBe(1)
+          // eslint-disable-next-line jest/no-standalone-expect
+          expect(stderr).toContain(SERVER_PROPS_SSG_CONFLICT)
+        }
+      )
+
+      it('should error when exporting getStaticPaths on a non-dynamic page', async () => {
+        await fs.move(indexPage, indexPageBak)
+        await fs.writeFile(
+          indexPage,
+          `
+      export const getStaticPaths = async () => {
+        return {
+          props: { world: 'world' }, fallback: true
+        }
+      }
+
+      export default ({ world }) => <p>Hello {world}</p>
+    `
+        )
+        const { stderr, code } = await nextBuild(appDir, [], { stderr: true })
+
+        await fs.remove(indexPage)
+        await fs.move(indexPageBak, indexPage)
+        expect(code).toBe(1)
+        expect(stderr).toContain(
+          "getStaticPaths is only allowed for dynamic SSG pages and was found on '/'."
+        )
+      })
+    }
+  )
+})