Improve description line when assertion fails: part 2

CHANGELOG.md

@@ -1,5 +1,10 @@
 ## master
 
+### Features
+
+* `[jest-matcher-utils]` Add `isNot` option to `matcherHint` function
+  ([#5512](https://github.com/facebook/jest/pull/5512))
+
 ## jest 22.2.2
 
 ### Fixes
@@ -37,6 +42,8 @@
 * `[diff-sequences]` New package compares items in two sequences to find a
   **longest common subsequence**.
   ([#5407](https://github.com/facebook/jest/pull/5407))
+* `[jest-matcher-utils]` Add `comment` option to `matcherHint` function
+  ([#5437](https://github.com/facebook/jest/pull/5437))
 * `[jest-config]` Allow lastComit and changedFilesWithAncestor via JSON config
   ([#5476](https://github.com/facebook/jest/pull/5476))
 * `[jest-util]` Add deletion to `process.env` as well

integration-tests/__tests__/__snapshots__/failures.test.js.snap

@@ -38,8 +38,7 @@ exports[`not throwing Error objects 4`] = `
     ✕ throws when there are not assertions
   ● .assertions() › throws
     expect(received).toBeTruthy()
-    Expected value to be truthy, instead received
-      false
+    Received: false
       11 | const throws = () => {
       12 |   expect.assertions(2);
     > 13 |   expect(false).toBeTruthy();
@@ -52,8 +51,7 @@ exports[`not throwing Error objects 4`] = `
     Expected two assertions to be called but received one assertion call.
   ● .assertions() › throws on redeclare of assertion count
     expect(received).toBeTruthy()
-    Expected value to be truthy, instead received
-      false
+    Received: false
       15 | const redeclare = () => {
       16 |   expect.assertions(1);
     > 17 |   expect(false).toBeTruthy();

integration-tests/__tests__/jasmine_async.test.js

@@ -138,7 +138,7 @@ describe('async jasmine', () => {
 
     expect(result.status).toBe(1);
     expect(result.json.testResults[0].message).toEqual(
-      expect.stringContaining('Expected value to be truthy, instead received'),
+      expect.stringContaining('Received:'),
     );
   });