chore: use "res.allHeaders()" instead of "res.headers()"

test/graphql-api/cookies.test.ts

@@ -19,7 +19,7 @@ test('sets cookie on the mocked GraphQL response', async () => {
     `,
   })
 
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(headers).toHaveProperty('x-powered-by', 'msw')

test/graphql-api/document-node.test.ts

@@ -23,7 +23,7 @@ test('intercepts a GraphQL query based on its DocumentNode', async () => {
   })
 
   expect(res.status()).toEqual(200)
-  expect(res.headers()).toHaveProperty('x-powered-by', 'msw')
+  expect(await res.allHeaders()).toHaveProperty('x-powered-by', 'msw')
 
   const json = await res.json()
   expect(json).toEqual({
@@ -52,7 +52,7 @@ test('intercepts a GraphQL mutation based on its DocumentNode', async () => {
   })
 
   expect(res.status()).toEqual(200)
-  expect(res.headers()).toHaveProperty('x-powered-by', 'msw')
+  expect(await res.allHeaders()).toHaveProperty('x-powered-by', 'msw')
 
   const json = await res.json()
   expect(json).toEqual({
@@ -87,7 +87,7 @@ test('intercepts a scoped GraphQL query based on its DocumentNode', async () =>
   )
 
   expect(res.status()).toEqual(200)
-  expect(res.headers()).toHaveProperty('x-powered-by', 'msw')
+  expect(await res.allHeaders()).toHaveProperty('x-powered-by', 'msw')
 
   const json = await res.json()
   expect(json).toEqual({

test/graphql-api/link.test.ts

@@ -36,7 +36,7 @@ test('mocks a GraphQL query to the GitHub GraphQL API', async () => {
     },
   )
 
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(res.status()).toEqual(200)
@@ -73,7 +73,7 @@ test('mocks a GraphQL mutation to the Stripe GraphQL API', async () => {
     },
   )
 
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(res.status()).toEqual(200)
@@ -104,7 +104,7 @@ test('falls through to the matching GraphQL operation to an unknown endpoint', a
     },
   })
 
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(headers).toHaveProperty('x-request-handler', 'fallback')

test/graphql-api/mutation.test.ts

@@ -23,7 +23,7 @@ test('sends a mocked response to a GraphQL mutation', async () => {
       }
     `,
   })
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(res.status()).toEqual(200)

test/graphql-api/operation-reference.test.ts

@@ -23,7 +23,7 @@ test('allows referencing the request body in the request handler', async () => {
       id: 'abc-123',
     },
   })
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(headers).toHaveProperty('x-powered-by', 'msw')
@@ -53,7 +53,7 @@ test('allows referencing the request body in the request handler', async () => {
       password: 'super-secret',
     },
   })
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(headers).toHaveProperty('x-powered-by', 'msw')

test/graphql-api/operation.test.ts

@@ -30,7 +30,7 @@ test('intercepts and mocks a GraphQL query', async () => {
       id: 'abc-123',
     },
   })
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(res.status()).toEqual(200)
@@ -73,7 +73,7 @@ test('intercepts and mocks an anonymous GraphQL query', async () => {
 
   expect(res.status()).toEqual(200)
 
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   expect(headers).toHaveProperty('x-powered-by', 'msw')
 
   const body = await res.json()
@@ -109,7 +109,7 @@ test('intercepts and mocks a GraphQL mutation', async () => {
       password: 'super-secret',
     },
   })
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(res.status()).toEqual(200)
@@ -163,7 +163,7 @@ test('bypasses seemingly compatible REST requests', async () => {
     },
   )
 
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(res.status()).toBe(200)

test/graphql-api/query.test.ts

@@ -31,7 +31,7 @@ test('mocks a GraphQL query issued with a GET request', async () => {
     },
   )
 
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(res.status()).toEqual(200)
@@ -59,7 +59,7 @@ test('mocks a GraphQL query issued with a POST request', async () => {
       }
     `,
   })
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(res.status()).toEqual(200)

test/msw-api/context/async-response-transformer.test.ts

@@ -13,7 +13,7 @@ test('supports asynchronous response transformer', async () => {
     path.resolve(__dirname, '../../fixtures/image.jpg'),
   )
   const status = res.status()
-  const headers = res.headers()
+  const headers = await res.allHeaders()
 
   expect(status).toBe(201)
   expect(headers).toHaveProperty('content-type', 'image/jpeg')
@@ -34,7 +34,7 @@ test('supports asynchronous default response transformer', async () => {
   })
   const status = res.status()
   const statusText = res.statusText()
-  const headers = res.headers()
+  const headers = await res.allHeaders()
 
   expect(status).toBe(301)
   expect(statusText).toBe('Custom Status Text')

test/msw-api/context/delay.test.ts

@@ -54,7 +54,7 @@ test('uses explicit server response delay', async () => {
   expect(responseTime).toRoughlyEqual(1200, 250)
 
   const status = res.status()
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(headers).toHaveProperty('x-powered-by', 'msw')
@@ -74,7 +74,7 @@ test('uses realistic server response delay when no delay value is provided', asy
   expect(responseTime).toRoughlyEqual(250, 200)
 
   const status = res.status()
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(headers).toHaveProperty('x-powered-by', 'msw')
@@ -96,7 +96,7 @@ test('uses realistic server response delay when "real" delay mode is provided',
   expect(responseTime).toRoughlyEqual(250, 200)
 
   const status = res.status()
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(headers).toHaveProperty('x-powered-by', 'msw')

test/msw-api/exception-handling.test.ts

@@ -17,7 +17,7 @@ test('transforms uncaught exceptions into a 500 response', async () => {
 
   const res = await runtime.request('https://api.github.com/users/octocat')
   const status = res.status()
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(status).toEqual(500)

test/msw-api/hard-reload.test.ts

@@ -18,7 +18,7 @@ test('keeps the mocking enabled after hard-reload of the page', async () => {
   })
 
   const res = await runtime.request('https://api.github.com')
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(headers).toHaveProperty('x-powered-by', 'msw')

test/msw-api/integrity-check.test.ts

@@ -20,7 +20,7 @@ test('activates the worker without errors given the latest integrity', async ()
   expect(consoleSpy.get('error')).toBeUndefined()
 
   const res = await request('https://api.github.com/users/octocat')
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(headers).toHaveProperty('x-powered-by', 'msw')
@@ -63,7 +63,7 @@ test('errors when activating the worker with an outdated integrity', async () =>
 
   // Should still keep the mocking enabled.
   const res = await request('https://api.github.com/users/octocat')
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(headers).toHaveProperty('x-powered-by', 'msw')

test/msw-api/setup-worker/start/quiet.test.ts

@@ -21,7 +21,7 @@ test('does not log the captured request when the "quiet" option is set to "true"
 
   const res = await request('/user')
 
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(headers).toHaveProperty('x-powered-by', 'msw')

test/msw-api/setup-worker/stop.test.ts

@@ -28,7 +28,7 @@ test('disables the mocking when the worker is stopped', async () => {
   await stopWorkerOn(runtime.page)
 
   const res = await runtime.request('https://api.github.com')
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(headers).not.toHaveProperty('x-powered-by', 'msw')
@@ -56,7 +56,7 @@ test('keeps the mocking enabled in one tab when stopping the worker in another t
   // Create a request handler for the new page.
   const request = createRequestUtil(secondPage, server)
   const res = await request('https://api.github.com')
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(headers).toHaveProperty('x-powered-by', 'msw')

test/rest-api/basic.test.ts

@@ -7,10 +7,11 @@ test('mocks response to a basic GET request', async () => {
   })
 
   const res = await runtime.request('https://api.github.com/users/octocat')
+  const headers = await res.allHeaders()
   const body = await res.json()
 
-  expect(res.headers()).toHaveProperty('x-powered-by', 'msw')
   expect(res.status()).toBe(200)
+  expect(headers).toHaveProperty('x-powered-by', 'msw')
   expect(body).toEqual({
     name: 'John Maverick',
     originalUsername: 'octocat',

test/rest-api/context.test.ts

@@ -7,7 +7,7 @@ test('composes various context utilities into a valid mocked response', async ()
   })
 
   const res = await runtime.request('https://test.mswjs.io/')
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(res.status()).toEqual(201)

test/rest-api/cookies-request.test.ts

@@ -18,7 +18,7 @@ test('returns all document cookies in "req.cookies" for "include" credentials',
   const res = await runtime.request('/user', {
     credentials: 'include',
   })
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(headers).toHaveProperty('x-powered-by', 'msw')
@@ -36,7 +36,7 @@ test('returns all document cookies in "req.cookies" for "same-origin" credential
   const res = await runtime.request('/user', {
     credentials: 'same-origin',
   })
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(headers).toHaveProperty('x-powered-by', 'msw')
@@ -54,7 +54,7 @@ test('returns no cookies in "req.cookies" for "same-origin" credentials and requ
   const res = await runtime.request('https://test.mswjs.io/user', {
     credentials: 'same-origin',
   })
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(headers).toHaveProperty('x-powered-by', 'msw')
@@ -69,7 +69,7 @@ test('returns no cookies in "req.cookies" for "omit" credentials', async () => {
   const res = await runtime.request('/user', {
     credentials: 'omit',
   })
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(headers).toHaveProperty('x-powered-by', 'msw')

test/rest-api/cookies.test.ts

@@ -11,7 +11,7 @@ test('allows setting cookies on the mocked response', async () => {
 
   const res = await runtime.request('/user')
 
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(headers).toHaveProperty('x-powered-by', 'msw')

test/rest-api/custom-request-handler.test.ts

@@ -16,7 +16,7 @@ test('intercepts a request with a custom request handler with default context',
     },
   })
   const body = await res.json()
-  const headers = res.headers()
+  const headers = await res.allHeaders()
 
   expect(res.status()).toBe(401)
   expect(headers).toHaveProperty('x-powered-by', 'msw')
@@ -30,7 +30,7 @@ test('intercepts a request with a custom request handler with custom context', a
 
   const res = await runtime.request('https://test.url/')
   const body = await res.json()
-  const headers = res.headers()
+  const headers = await res.allHeaders()
 
   expect(res.status()).toBe(200)
   expect(headers).toHaveProperty('x-powered-by', 'msw')

test/rest-api/generator.test.ts

@@ -18,7 +18,7 @@ test('supports a generator function as the response resolver', async () => {
   const assertRequest = async (expectedBody: ExpectedResponseBody) => {
     const res = await runtime.request('/polling/3')
     const body = await res.json()
-    expect(res.headers()).toHaveProperty('x-powered-by', 'msw')
+    expect(await res.allHeaders()).toHaveProperty('x-powered-by', 'msw')
     expect(res.status()).toBe(200)
     expect(body).toEqual(expectedBody)
   }
@@ -39,7 +39,7 @@ test('supports one-time handlers with the generator as the response resolver', a
   const assertRequest = async (expectedBody: ExpectedResponseBody) => {
     const res = await runtime.request('/polling/once/3')
     const body = await res.json()
-    expect(res.headers()).toHaveProperty('x-powered-by', 'msw')
+    expect(await res.allHeaders()).toHaveProperty('x-powered-by', 'msw')
     expect(res.status()).toBe(200)
     expect(body).toEqual(expectedBody)
   }

test/rest-api/headers-multiple.test.ts

@@ -34,7 +34,7 @@ test('supports setting a header with multiple values on the mocked response', as
 
   const res = await runtime.request('https://test.mswjs.io')
   const status = res.status()
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(status).toEqual(200)

test/rest-api/params.test.ts

@@ -10,7 +10,7 @@ test('parses request URL parameters', async () => {
     'https://api.github.com/users/octocat/messages/abc-123',
   )
   const status = res.status()
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(status).toBe(200)

test/rest-api/query.test.ts

@@ -14,7 +14,7 @@ test('retrieves a single request URL query parameter', async () => {
     'https://test.mswjs.io/api/books?id=abc-123',
   )
   const status = res.status()
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(status).toBe(200)
@@ -34,7 +34,7 @@ test('retrieves multiple request URL query parameters', async () => {
     },
   )
   const status = res.status()
-  const headers = res.headers()
+  const headers = await res.allHeaders()
   const body = await res.json()
 
   expect(status).toBe(200)