fix: display error message correctly

packages/utils/src/descriptors.ts

@@ -94,5 +94,5 @@ export function getConcordanceTheme() {
 }
 
 export function diffDescriptors(actual: unknown, expected: unknown, options: DisplayOptions): string {
-  return concordanceModule.diff(expected, actual, options)
+  return concordanceModule.diff(actual, expected, options)
 }

test/core/test/__snapshots__/mocked.test.ts.snap

@@ -6,8 +6,8 @@ exports[`mocked function which fails on toReturnWith > just one call 1`] = `
 Received: 
     1st spy call return:
 
-  - 2
-  + 1
+  - 1
+  + 2
 
 
 Number of calls: 1
@@ -20,18 +20,18 @@ exports[`mocked function which fails on toReturnWith > multi calls 1`] = `
 Received: 
     1st spy call return:
 
-  - 2
-  + 1
+  - 1
+  + 2
 
     2nd spy call return:
 
-  - 2
-  + 1
+  - 1
+  + 2
 
     3rd spy call return:
 
-  - 2
-  + 1
+  - 1
+  + 2
 
 
 Number of calls: 3
@@ -45,22 +45,22 @@ Received:
     1st spy call return:
 
     {
-  -   a: '4',
-  +   a: '1',
+  -   a: '1',
+  +   a: '4',
     }
 
     2nd spy call return:
 
     {
-  -   a: '4',
-  +   a: '1',
+  -   a: '1',
+  +   a: '4',
     }
 
     3rd spy call return:
 
     {
-  -   a: '4',
-  +   a: '1',
+  -   a: '1',
+  +   a: '4',
     }
 
 

test/core/test/diff.test.ts

@@ -15,8 +15,8 @@ test('displays object diff', () => {
 
         {
           a: 1,
-      -   b: 3,
-      +   b: 2,
+      -   b: 2,
+      +   b: 3,
         }"
   `)
 })
@@ -31,8 +31,8 @@ test('display one line string diff', () => {
     "  - Expected  - 1
       + Received  + 1
 
-      - 'string2'
-      + 'string1'"
+      - 'string1'
+      + 'string2'"
   `)
 })
 
@@ -43,13 +43,12 @@ test('display multiline line string diff', () => {
   setupColors(getDefaultColors())
   displayDiff(unifiedDiff(string1, string2), console as any)
   expect(console.error.mock.calls[0][0]).toMatchInlineSnapshot(`
-    "  - Expected  - 2
+    "  - Expected  - 1
       + Received  + 2
 
-      + string1
-        \`string2
-      - string2
-      - string1\`
-      + string3\`"
+      - \`string1
+        string2
+      - string3\`
+      + \`string2"
   `)
 })

test/core/test/jest-matcher-utils.test.ts

@@ -5,7 +5,7 @@ describe('jest-matcher-utils', () => {
   expect.extend({
     toBeJestEqual(received: any, expected: any) {
       return {
-        message: () => this.utils.diff(expected, received),
+        message: () => this.utils.diff(received, expected),
         pass: received === expected,
       }
     },

test/reporters/tests/__snapshots__/html.test.ts.snap

@@ -46,8 +46,8 @@ exports[`html reporter > resolves to "failing" status for test file "json-fail"
               "diff": "  - Expected  - 1
   + Received  + 1
 
-  - 1
-  + 2",
+  - 2
+  + 1",
               "expected": "1",
               "message": "expected 2 to deeply equal 1",
               "name": "AssertionError",
@@ -66,8 +66,8 @@ exports[`html reporter > resolves to "failing" status for test file "json-fail"
                 "diff": "  - Expected  - 1
   + Received  + 1
 
-  - 1
-  + 2",
+  - 2
+  + 1",
                 "expected": "1",
                 "message": "expected 2 to deeply equal 1",
                 "name": "AssertionError",