[Changed] Improve jest-diffs (#145)

* chore: improve jest-diffs

* fix: run eslint

* chore: build new package with node 10

* fix: move deps

* fix: reinstall jest-diff

* chore: fix import

* fix: use right imports

* fix: use right jest-diff dependency

package.json

@@ -38,6 +38,7 @@
   "homepage": "https://github.com/mercadona/wrapito#readme",
   "dependencies": {
     "deep-equal": "^1.0.1",
+    "jest-diff": "^29.7.0",
     "object-hash": "^2.1.1",
     "whatwg-fetch": "^3.5.0"
   },
@@ -66,8 +67,8 @@
     "typescript": "^4.3.3"
   },
   "peerDependencies": {
-    "jest": "*",
     "chalk": "*",
+    "jest": "*",
     "react": "*",
     "react-dom": "*"
   },

src/assertions/messages.js

@@ -1,4 +1,4 @@
-import { green, red } from 'chalk'
+import { diff } from 'jest-diff'
 
 const emptyErrorMessage = (path, options) => {
   const message = options?.host
@@ -20,19 +20,21 @@ const fetchLengthErrorMessage = (path, expectLength, currentLength) => ({
 const methodDoesNotMatchErrorMessage = (expected, received) => ({
   pass: false,
   message: () =>
-    `🌯 Wrapito: Fetch method does not match, expected ${expected} received ${received}`,
+    `🌯 Wrapito: Fetch method does not match, expected ${expected} received ${received ?? 'none'}`,
 })
 
-const bodyDoesNotMatchErrorMessage = (expected, received) => ({
-  pass: false,
-  message: () =>
-    `🌯 Wrapito: Fetch body does not match.
-Expected:
-${green(JSON.stringify(expected, null, ' '))}
+const bodyDoesNotMatchErrorMessage = (expected, receivedBodies) => {
+  const diffs = receivedBodies
+    .map(received => diff(expected, received))
+    .join('\n\n')
 
-Received:
-${red(JSON.stringify(received, null, ' '))}`,
-})
+  return {
+    pass: false,
+    message: () =>
+      `🌯 Wrapito: Fetch body does not match.
+${diffs}`,
+  }
+}
 
 const doesNotHaveBodyErrorMessage = () => ({
   pass: false,

tests/assertions/toHaveBeenFetchedWith.test.js

@@ -1,5 +1,5 @@
 import { assertions } from '../../src'
-import { green, red } from 'chalk'
+import { diff } from 'jest-diff'
 
 expect.extend(assertions)
 
@@ -25,7 +25,7 @@ describe('toHaveBeenFetchedWith', () => {
     await fetch(new Request(path))
     const { message } = await assertions.toHaveBeenFetchedWith(expectedPath)
 
-    expect(message()).toBe("🌯 Wrapito: /some/unknown ain't got called")
+    expect(message()).toBe('🌯 Wrapito: /some/unknown ain\'t got called')
     expect(expectedPath).not.toHaveBeenFetchedWith()
   })
 
@@ -152,11 +152,7 @@ describe('toHaveBeenFetchedWith', () => {
 
       expect(message()).toBe(
         `🌯 Wrapito: Fetch body does not match.
-Expected:
-${green(JSON.stringify(expectedBody, null, ' '))}
-
-Received:
-${red(JSON.stringify([receivedBody], null, ' '))}`,
+${diff(expectedBody, receivedBody)}`,
       )
       expect(path).not.toHaveBeenFetchedWith({
         body: expectedBody,