gatsbyjs · pieh · Nov 20, 2023 · Nov 13, 2023
diff --git a/e2e-tests/adapters/cypress/configs/netlify.ts b/e2e-tests/adapters/cypress/configs/netlify.ts
@@ -3,8 +3,7 @@ import { defineConfig } from "cypress"
 export default defineConfig({
   e2e: {
     baseUrl: process.env.DEPLOY_URL || `http://localhost:8888`,
-    // Netlify doesn't handle trailing slash behaviors really, so no use in testing it
-    excludeSpecPattern: [`cypress/e2e/trailing-slash.cy.ts`],
+    excludeSpecPattern: [],
     projectId: `4enh4m`,
     videoUploadOnPasses: false,
     experimentalRunAllSpecs: true,

diff --git a/e2e-tests/adapters/cypress/e2e/basics.cy.ts b/e2e-tests/adapters/cypress/e2e/basics.cy.ts
@@ -1,12 +1,15 @@
 import { title } from "../../constants"
 import { WorkaroundCachedResponse } from "../utils/dont-cache-responses-in-browser"
 
+const PATH_PREFIX = Cypress.env(`PATH_PREFIX`) || ``
+
 describe("Basics", () => {
   beforeEach(() => {
-    cy.intercept("/gatsby-icon.png").as("static-folder-image")
-    cy.intercept("/static/astro-**.png", WorkaroundCachedResponse).as(
-      "img-import"
-    )
+    cy.intercept(PATH_PREFIX + "/gatsby-icon.png").as("static-folder-image")
+    cy.intercept(
+      PATH_PREFIX + "/static/astro-**.png",
+      WorkaroundCachedResponse
+    ).as("img-import")
 
     cy.visit("/").waitForRouteChange()
   })
@@ -35,7 +38,7 @@ describe("Basics", () => {
       failOnStatusCode: false,
     })
 
-    cy.get("h1").should("have.text", "Page not found")
+    cy.get("h1").should("have.text", "Page not found (custom)")
   })
   it("should apply CSS", () => {
     cy.get(`h1`).should(`have.css`, `color`, `rgb(21, 21, 22)`)

diff --git a/e2e-tests/adapters/cypress/e2e/client-only.cy.ts b/e2e-tests/adapters/cypress/e2e/client-only.cy.ts
@@ -1,15 +1,15 @@
-Cypress.on('uncaught:exception', (err) => {
-  if (err.message.includes('Minified React error')) {
+Cypress.on("uncaught:exception", err => {
+  if (err.message.includes("Minified React error")) {
     return false
   }
 })
 
-describe('Sub-Router', () => {
+describe("Sub-Router", () => {
   const routes = [
     {
       path: "/routes/sub-router",
       marker: "index",
-      label: "Index route"
+      label: "Index route",
     },
     {
       path: `/routes/sub-router/page/profile`,
@@ -51,39 +51,47 @@ describe('Sub-Router', () => {
   })
 })
 
-describe('Paths', () => {
+describe("Paths", () => {
   const routes = [
     {
-      name: 'client-only',
-      param: 'dune',
+      name: "client-only",
+      param: "dune",
     },
     {
-      name: 'client-only/wildcard',
-      param: 'atreides/harkonnen',
+      name: "client-only/wildcard",
+      param: "atreides/harkonnen",
     },
     {
-      name: 'client-only/named-wildcard',
-      param: 'corinno/fenring',
+      name: "client-only/named-wildcard",
+      param: "corinno/fenring",
     },
   ] as const
 
   for (const route of routes) {
     it(`should return "${route.name}" result`, () => {
-      cy.visit(`/routes/${route.name}${route.param ? `/${route.param}` : ''}`).waitForRouteChange()
+      cy.visit(
+        `/routes/${route.name}${route.param ? `/${route.param}` : ""}`
+      ).waitForRouteChange()
       cy.get("[data-testid=title]").should("have.text", route.name)
       cy.get("[data-testid=params]").should("have.text", route.param)
     })
   }
 })
 
-describe('Prioritize', () => {
-  it('should prioritize static page over matchPath page with wildcard', () => {
-    cy.visit('/routes/client-only/prioritize').waitForRouteChange()
-    cy.get("[data-testid=title]").should("have.text", "client-only/prioritize static")
+describe("Prioritize", () => {
+  it("should prioritize static page over matchPath page with wildcard", () => {
+    cy.visit("/routes/client-only/prioritize").waitForRouteChange()
+    cy.get("[data-testid=title]").should(
+      "have.text",
+      "client-only/prioritize static"
+    )
   })
-  it('should return result for wildcard on nested prioritized path', () => {
-    cy.visit('/routes/client-only/prioritize/nested').waitForRouteChange()
-    cy.get("[data-testid=title]").should("have.text", "client-only/prioritize matchpath")
+  it("should return result for wildcard on nested prioritized path", () => {
+    cy.visit("/routes/client-only/prioritize/nested").waitForRouteChange()
+    cy.get("[data-testid=title]").should(
+      "have.text",
+      "client-only/prioritize matchpath"
+    )
     cy.get("[data-testid=params]").should("have.text", "nested")
   })
 })
diff --git a/e2e-tests/adapters/cypress/e2e/headers.cy.ts b/e2e-tests/adapters/cypress/e2e/headers.cy.ts
@@ -1,5 +1,7 @@
 import { WorkaroundCachedResponse } from "../utils/dont-cache-responses-in-browser"
 
+const PATH_PREFIX = Cypress.env(`PATH_PREFIX`) || ``
+
 describe("Headers", () => {
   const defaultHeaders = {
     "x-xss-protection": "1; mode=block",
@@ -73,23 +75,38 @@ describe("Headers", () => {
   }
 
   beforeEach(() => {
-    cy.intercept("/", WorkaroundCachedResponse).as("index")
-    cy.intercept("routes/ssr/static", WorkaroundCachedResponse).as("ssr")
-    cy.intercept("routes/dsg/static", WorkaroundCachedResponse).as("dsg")
-
-    cy.intercept("**/page-data.json", WorkaroundCachedResponse).as("page-data")
-    cy.intercept("**/app-data.json", WorkaroundCachedResponse).as("app-data")
-    cy.intercept("**/slice-data/*.json", WorkaroundCachedResponse).as(
-      "slice-data"
-    )
-    cy.intercept("**/page-data/sq/d/*.json", WorkaroundCachedResponse).as(
-      "static-query-result"
-    )
-
-    cy.intercept("/static/astro-**.png", WorkaroundCachedResponse).as(
-      "img-webpack-import"
-    )
-    cy.intercept("*.js", WorkaroundCachedResponse).as("js")
+    cy.intercept(PATH_PREFIX + "/", WorkaroundCachedResponse).as("index")
+    cy.intercept(
+      PATH_PREFIX + "/routes/ssr/static",
+      WorkaroundCachedResponse
+    ).as("ssr")
+    cy.intercept(
+      PATH_PREFIX + "/routes/dsg/static",
+      WorkaroundCachedResponse
+    ).as("dsg")
+
+    cy.intercept(
+      PATH_PREFIX + "/**/page-data.json",
+      WorkaroundCachedResponse
+    ).as("page-data")
+    cy.intercept(
+      PATH_PREFIX + "/**/app-data.json",
+      WorkaroundCachedResponse
+    ).as("app-data")
+    cy.intercept(
+      PATH_PREFIX + "/**/slice-data/*.json",
+      WorkaroundCachedResponse
+    ).as("slice-data")
+    cy.intercept(
+      PATH_PREFIX + "/**/page-data/sq/d/*.json",
+      WorkaroundCachedResponse
+    ).as("static-query-result")
+
+    cy.intercept(
+      PATH_PREFIX + "/static/astro-**.png",
+      WorkaroundCachedResponse
+    ).as("img-webpack-import")
+    cy.intercept(PATH_PREFIX + "/**/*.js", WorkaroundCachedResponse).as("js")
   })
 
   it("should contain correct headers for index page", () => {

diff --git a/e2e-tests/adapters/cypress/e2e/redirects.cy.ts b/e2e-tests/adapters/cypress/e2e/redirects.cy.ts
@@ -7,6 +7,7 @@ Cypress.on("uncaught:exception", err => {
 })
 
 const TRAILING_SLASH = Cypress.env(`TRAILING_SLASH`) || `never`
+const PATH_PREFIX = Cypress.env(`PATH_PREFIX`) || ``
 
 // Those tests won't work using `gatsby serve` because it doesn't support redirects
 
@@ -122,7 +123,8 @@ describe("Redirects", () => {
 
     cy.location(`pathname`).should(
       `equal`,
-      applyTrailingSlashOption(`/routes/redirect/hit`, TRAILING_SLASH)
+      PATH_PREFIX +
+        applyTrailingSlashOption(`/routes/redirect/hit`, TRAILING_SLASH)
     )
     cy.location(`hash`).should(`equal`, `#anchor`)
     cy.location(`search`).should(`equal`, ``)
@@ -138,7 +140,8 @@ describe("Redirects", () => {
 
     cy.location(`pathname`).should(
       `equal`,
-      applyTrailingSlashOption(`/routes/redirect/hit`, TRAILING_SLASH)
+      PATH_PREFIX +
+        applyTrailingSlashOption(`/routes/redirect/hit`, TRAILING_SLASH)
     )
     cy.location(`hash`).should(`equal`, ``)
     cy.location(`search`).should(`equal`, `?query_param=hello`)
@@ -154,7 +157,8 @@ describe("Redirects", () => {
 
     cy.location(`pathname`).should(
       `equal`,
-      applyTrailingSlashOption(`/routes/redirect/hit`, TRAILING_SLASH)
+      PATH_PREFIX +
+        applyTrailingSlashOption(`/routes/redirect/hit`, TRAILING_SLASH)
     )
     cy.location(`hash`).should(`equal`, `#anchor`)
     cy.location(`search`).should(`equal`, `?query_param=hello`)

diff --git a/e2e-tests/adapters/cypress/e2e/ssr.cy.ts b/e2e-tests/adapters/cypress/e2e/ssr.cy.ts
@@ -1,6 +1,8 @@
 const staticPath = "/routes/ssr/static"
 const paramPath = "/routes/ssr/param"
 
+const PATH_PREFIX = Cypress.env(`PATH_PREFIX`) || ``
+
 describe("Server Side Rendering (SSR)", () => {
   it(`direct visit no query params (${staticPath})`, () => {
     cy.visit(staticPath).waitForRouteChange()
@@ -32,8 +34,8 @@ describe("Server Side Rendering (SSR)", () => {
     cy.visit(errorPath, { failOnStatusCode: false }).waitForRouteChange()
 
     cy.location(`pathname`)
-      .should(`equal`, errorPath)
+      .should(`equal`, PATH_PREFIX + errorPath)
       .get(`h1`)
-      .should(`have.text`, `INTERNAL SERVER ERROR`)
+      .should(`have.text`, `INTERNAL SERVER ERROR (custom)`)
   })
-})
+})
diff --git a/e2e-tests/adapters/cypress/support/e2e.ts b/e2e-tests/adapters/cypress/support/e2e.ts
@@ -15,6 +15,8 @@ declare global {
   }
 }
 
+const PATH_PREFIX = Cypress.env(`PATH_PREFIX`) || ``
+
 Cypress.Commands.add(`assertRoute`, route => {
-  cy.url().should(`equal`, `${window.location.origin}${route}`)
+  cy.url().should(`equal`, `${window.location.origin}${PATH_PREFIX}${route}`)
 })
diff --git a/e2e-tests/adapters/gatsby-config.ts b/e2e-tests/adapters/gatsby-config.ts
@@ -5,6 +5,8 @@ import { siteDescription, title } from "./constants"
 const shouldUseDebugAdapter = process.env.USE_DEBUG_ADAPTER ?? false
 const trailingSlash = (process.env.TRAILING_SLASH ||
   `never`) as GatsbyConfig["trailingSlash"]
+const pathPrefix = (process.env.PATH_PREFIX ||
+  undefined) as GatsbyConfig["pathPrefix"]
 
 let configOverrides: GatsbyConfig = {}
 
@@ -21,6 +23,7 @@ const config: GatsbyConfig = {
     siteDescription,
   },
   trailingSlash,
+  pathPrefix,
   plugins: [],
   headers: [
     {

diff --git a/e2e-tests/adapters/package.json b/e2e-tests/adapters/package.json
@@ -6,19 +6,21 @@
   "author": "LekoArts",
   "scripts": {
     "develop": "cross-env CYPRESS_SUPPORT=y gatsby develop",
-    "build": "cross-env CYPRESS_SUPPORT=y gatsby build",
+    "build": "cross-env CYPRESS_SUPPORT=y gatsby build --prefix-paths",
     "build:debug": "cross-env USE_DEBUG_ADAPTER=y CYPRESS_SUPPORT=y npm run build",
     "serve": "gatsby serve",
     "clean": "gatsby clean",
     "cy:open": "cypress open --browser chrome --e2e",
     "develop:debug": "start-server-and-test develop http://localhost:8000 'npm run cy:open -- --config baseUrl=http://localhost:8000'",
     "ssat:debug": "start-server-and-test serve http://localhost:9000 cy:open",
-    "test:template": "cross-env-shell CYPRESS_GROUP_NAME=$ADAPTER TRAILING_SLASH=$TRAILING_SLASH node ../../scripts/cypress-run-with-conditional-record-flag.js --browser chrome --e2e --config-file \"cypress/configs/$ADAPTER.ts\" --env TRAILING_SLASH=$TRAILING_SLASH",
-    "test:template:debug": "cross-env-shell CYPRESS_GROUP_NAME=$ADAPTER TRAILING_SLASH=$TRAILING_SLASH npm run cy:open -- --config-file \"cypress/configs/$ADAPTER.ts\" --env TRAILING_SLASH=$TRAILING_SLASH",
+    "test:template": "cross-env-shell CYPRESS_GROUP_NAME=\"adapter:$ADAPTER / trailingSlash:${TRAILING_SLASH:-always} / pathPrefix:${PATH_PREFIX:--}\" TRAILING_SLASH=$TRAILING_SLASH PATH_PREFIX=$PATH_PREFIX node ../../scripts/cypress-run-with-conditional-record-flag.js --browser chrome --e2e --config-file \"cypress/configs/$ADAPTER.ts\" --env TRAILING_SLASH=$TRAILING_SLASH,PATH_PREFIX=$PATH_PREFIX",
+    "test:template:debug": "cross-env-shell CYPRESS_GROUP_NAME=\"adapter:$ADAPTER / trailingSlash:${TRAILING_SLASH:-always} / pathPrefix:${PATH_PREFIX:--}\" TRAILING_SLASH=$TRAILING_SLASH PATH_PREFIX=$PATH_PREFIX npm run cy:open -- --config-file \"cypress/configs/$ADAPTER.ts\" --env TRAILING_SLASH=$TRAILING_SLASH,PATH_PREFIX=$PATH_PREFIX",
     "test:debug": "npm-run-all -s build:debug ssat:debug",
     "test:netlify": "cross-env TRAILING_SLASH=always node scripts/deploy-and-run/netlify.mjs test:template",
     "test:netlify:debug": "cross-env TRAILING_SLASH=always node scripts/deploy-and-run/netlify.mjs test:template:debug",
-    "test": "npm-run-all -c -s test:netlify"
+    "test:netlify:prefix-never": "cross-env TRAILING_SLASH=never PATH_PREFIX=/prefix node scripts/deploy-and-run/netlify.mjs test:template",
+    "test:netlify:prefix-never:debug": "cross-env TRAILING_SLASH=never PATH_PREFIX=/prefix node scripts/deploy-and-run/netlify.mjs test:template:debug",
+    "test": "npm-run-all -c -s test:netlify test:netlify:prefix-never"
   },
   "dependencies": {
     "gatsby": "next",
@@ -29,6 +31,7 @@
   "devDependencies": {
     "cross-env": "^7.0.3",
     "cypress": "^12.14.0",
+    "dotenv": "^8.6.0",
     "gatsby-cypress": "^3.11.0",
     "netlify-cli": "^15.8.0",
     "npm-run-all": "^4.1.5",

diff --git a/e2e-tests/adapters/scripts/deploy-and-run/netlify.mjs b/e2e-tests/adapters/scripts/deploy-and-run/netlify.mjs
@@ -1,14 +1,23 @@
 // @ts-check
-
 import { execa } from "execa"
 
-process.env.NETLIFY_SITE_ID = process.env.E2E_ADAPTERS_NETLIFY_SITE_ID
+// only set NETLIFY_SITE_ID from E2E_ADAPTERS_NETLIFY_SITE_ID if it's set
+if (process.env.E2E_ADAPTERS_NETLIFY_SITE_ID) {
+  process.env.NETLIFY_SITE_ID = process.env.E2E_ADAPTERS_NETLIFY_SITE_ID
+}
 process.env.ADAPTER = "netlify"
 
-const deployTitle = process.env.CIRCLE_SHA1 || "N/A"
+const deployTitle = `${
+  process.env.CIRCLE_SHA1 || "N/A commit"
+} - trailingSlash:${process.env.TRAILING_SLASH || `always`} / pathPrefix:${
+  process.env.PATH_PREFIX || `-`
+}`
 
 const npmScriptToRun = process.argv[2] || "test:netlify"
 
+// ensure clean build
+await execa(`npm`, [`run`, `clean`], { stdio: `inherit` })
+
 const deployResults = await execa(
   "ntl",
   ["deploy", "--build", "--json", "--message", deployTitle],
@@ -30,28 +39,32 @@ if (deployResults.exitCode !== 0) {
 
 const deployInfo = JSON.parse(deployResults.stdout)
 
-process.env.DEPLOY_URL = deployInfo.deploy_url
+const deployUrl = deployInfo.deploy_url + (process.env.PATH_PREFIX ?? ``)
+process.env.DEPLOY_URL = deployUrl
 
-console.log(`Deployed to ${deployInfo.deploy_url}`)
+console.log(`Deployed to ${deployUrl}`)
 
 try {
   await execa(`npm`, [`run`, npmScriptToRun], { stdio: `inherit` })
 } finally {
-  // if (!process.env.GATSBY_TEST_SKIP_CLEANUP) {
-  //   console.log(`Deleting project with deploy_id ${deployInfo.deploy_id}`)
-  //   const deleteResponse = await execa("ntl", [
-  //     "api",
-  //     "deleteDeploy",
-  //     "--data",
-  //     `{ "deploy_id": "${deployInfo.deploy_id}" }`,
-  //   ])
-  //   if (deleteResponse.exitCode !== 0) {
-  //     throw new Error(
-  //       `Failed to delete project ${deleteResponse.stdout} ${deleteResponse.stderr} (${deleteResponse.exitCode})`
-  //     )
-  //   }
-  //   console.log(
-  //     `Successfully deleted project with deploy_id ${deployInfo.deploy_id}`
-  //   )
-  // }
+  if (!process.env.GATSBY_TEST_SKIP_CLEANUP) {
+    console.log(`Deleting project with deploy_id ${deployInfo.deploy_id}`)
+
+    const deleteResponse = await execa("ntl", [
+      "api",
+      "deleteDeploy",
+      "--data",
+      `{ "deploy_id": "${deployInfo.deploy_id}" }`,
+    ])
+
+    if (deleteResponse.exitCode !== 0) {
+      throw new Error(
+        `Failed to delete project ${deleteResponse.stdout} ${deleteResponse.stderr} (${deleteResponse.exitCode})`
+      )
+    }
+
+    console.log(
+      `Successfully deleted project with deploy_id ${deployInfo.deploy_id}`
+    )
+  }
 }
diff --git a/e2e-tests/adapters/src/pages/404.jsx b/e2e-tests/adapters/src/pages/404.jsx
@@ -17,11 +17,10 @@ const paragraphStyles = {
   marginBottom: 48,
 }
 
-
 const NotFoundPage = () => {
   return (
     <main style={pageStyles}>
-      <h1 style={headingStyles}>Page not found</h1>
+      <h1 style={headingStyles}>Page not found (custom)</h1>
       <p style={paragraphStyles}>
         Sorry 😔, we couldn’t find what you were looking for.
         <br />