E2E testing for interactive code snippets (#948)

* e2e testing for generated code snippets

* Parcel ts-utils

packages/chat/package.json

@@ -9,6 +9,7 @@
   "browserslist": "> 0.5%, last 2 versions, not dead",
   "dependencies": {
     "@parcel/core": "^2.10.0",
+    "@parcel/ts-utils": "^2.10.1",
     "date-fns": "^2.30.0",
     "execa": "^8.0.1",
     "express": "^4.18.2",

packages/website/cypress/e2e/code-snippets/code-snippets.cy.ts

@@ -0,0 +1,37 @@
+/// <reference types="cypress" />
+
+describe('code snippet interactions', () => {
+  beforeEach(() => {
+    cy.visit('http://localhost:8000/course/fundamentals-v4/07-interfaces-and-type-aliases/').waitForRouteChange()
+  })
+
+  it('Code snippet is found', () => {
+    // Code snippet found
+    cy.get('.post-body > .shiki.twoslash.lsp:nth-child(6)').should('exist').should('contain.text', 'function printAmount')
+  })
+
+  it('"Popover" tooltips from ^? are present', () => {
+    cy.get('.post-body > .shiki.twoslash.lsp:nth-child(6) :nth-child(10) > .popover').should('contain.text', 'currency: string')
+  })
+
+  it('Hover tooltips work', () => {
+      cy.get('.post-body > .shiki.twoslash.lsp:nth-child(6) data-lsp[lsp="function printAmount(amt: Amount): void"]')
+        .should('exist').trigger('mouseover')
+      cy.get('#twoslash-mouse-hover-info').should('contain.text', "function printAmount(amt: Amount): void")
+    })
+    it('Rendered errors work', () => {
+        cy.get('.post-body > .shiki.twoslash.lsp:nth-child(15)').should('exist').should('contain.text', 'type Amount')
+        cy.get('.post-body > .shiki.twoslash.lsp:nth-child(15) code > span.error:nth-child(2)')
+            .should('exist')
+            .should('contain.text', 'Duplicate identifier')
+
+    })
+    it('Code complete for |^ works', () => {
+        cy.get('.post-body > .shiki.twoslash.lsp:nth-child(21)').should('exist').should('contain.text', 'newYearsEve')
+        cy.get('.post-body > .shiki.twoslash.lsp:nth-child(21) .inline-completions').should('exist').should('contain.text', 'getDay')
+    })
+    it('Code highlighting works', () => {
+        cy.get('.post-body > .shiki.twoslash.lsp:nth-child(49)').should('exist').should('contain.text', 'jumpToHeight')
+        cy.get('.post-body > .shiki.twoslash.lsp:nth-child(49) .highlight').should('exist').should('contain.text', 'string')
+    })
+})

yarn.lock

@@ -3918,18 +3918,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@parcel/ts-utils@npm:2.10.0":
-  version: 2.10.0
-  resolution: "@parcel/ts-utils@npm:2.10.0"
-  dependencies:
-    nullthrows: ^1.1.1
-  peerDependencies:
-    typescript: ">=3.0.0"
-  checksum: 7151fef86f358e780db3153405598193a7e816ced2de1c61ed3250a04e41a759b4dee959db02630fee8a4a3b4b4561e4e04de7abb1dd99fba635bd3452f7f960
-  languageName: node
-  linkType: hard
-
-"@parcel/ts-utils@npm:2.10.1":
+"@parcel/ts-utils@npm:2.10.1, @parcel/ts-utils@npm:^2.10.1":
   version: 2.10.1
   resolution: "@parcel/ts-utils@npm:2.10.1"
   dependencies:
@@ -7582,6 +7571,7 @@ __metadata:
     "@parcel/transformer-inline-string": ^2.10.0
     "@parcel/transformer-typescript-tsc": ^2.10.0
     "@parcel/transformer-typescript-types": ^2.10.0
+    "@parcel/ts-utils": ^2.10.1
     "@types/express": ^4.17.19
     "@types/json-server": ^0.14.5
     "@types/react": ^18.2.28