test: assertion messages are currently not handled

jest.config.js

@@ -3,5 +3,6 @@ module.exports = {
   testEnvironment: 'node',
   snapshotSerializers: [
     'pretty-format/build/plugins/ConvertAnsi.js',
-  ]
+  ],
+  testMatch: ['<rootDir>/test/**/*.spec.ts'],
 };

lib/tree/index.ts

@@ -18,7 +18,7 @@ export function translateResult(
   context: Context,
   builder: BuildTree,
   [code, sig]: [number | null, string | null],
-) {
+): TestResult {
   const result = defaultTestResult(context.testPath);
 
   try {

test/__snapshots__/assert-render.spec.ts.snap

@@ -0,0 +1,109 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`assert rendering handles equal 1`] = `
+"  ✕  is equal
+
+    We failed to fully process the tap output:
+    name: is equal
+    diag:
+      found: false
+      wanted: true
+      compare: ===
+      at:
+        line: 7
+        column: 7
+        file: assertions.test.js
+        type: Test
+      stack: |
+        Test.<anonymous> (assertions.test.js:7:7)
+        Test.<anonymous> (assertions.test.js:4:11)
+        Object.<anonymous> (assertions.test.js:3:1)
+      source: |2
+            t.notOk(true, 'is notOk');
+            t.equal(false, true, 'is equal');
+        ------^
+            t.same(false, true, 'is same');
+          });
+    fullname: assertions.test.js assertions equality
+"
+`;
+
+exports[`assert rendering handles notOk 1`] = `
+"  ✕  is notOk
+
+    We failed to fully process the tap output:
+    name: is notOk
+    diag:
+      at:
+        line: 6
+        column: 7
+        file: assertions.test.js
+        type: Test
+      stack: |
+        Test.<anonymous> (assertions.test.js:6:7)
+        Test.<anonymous> (assertions.test.js:4:11)
+        Object.<anonymous> (assertions.test.js:3:1)
+      source: |2
+            t.ok(false, 'is ok');
+            t.notOk(true, 'is notOk');
+        ------^
+            t.equal(false, true, 'is equal');
+            t.same(false, true, 'is same');
+    fullname: assertions.test.js assertions equality
+"
+`;
+
+exports[`assert rendering handles ok 1`] = `
+"  ✕  is ok
+
+    We failed to fully process the tap output:
+    name: is ok
+    diag:
+      at:
+        line: 5
+        column: 7
+        file: assertions.test.js
+        type: Test
+      stack: |
+        Test.<anonymous> (assertions.test.js:5:7)
+        Test.<anonymous> (assertions.test.js:4:11)
+        Object.<anonymous> (assertions.test.js:3:1)
+      source: |2
+          await t.test('equality', async (t) => {
+            t.ok(false, 'is ok');
+        ------^
+            t.notOk(true, 'is notOk');
+            t.equal(false, true, 'is equal');
+    fullname: assertions.test.js assertions equality
+"
+`;
+
+exports[`assert rendering handles same 1`] = `
+"  ✕  is same
+
+    We failed to fully process the tap output:
+    name: is same
+    diag:
+      diff: |
+        --- expected
+        +++ actual
+        @@ -1,1 +1,1 @@
+        -true
+        +false
+      at:
+        line: 8
+        column: 7
+        file: assertions.test.js
+        type: Test
+      stack: |
+        Test.<anonymous> (assertions.test.js:8:7)
+        Test.<anonymous> (assertions.test.js:4:11)
+        Object.<anonymous> (assertions.test.js:3:1)
+      source: |2
+            t.equal(false, true, 'is equal');
+            t.same(false, true, 'is same');
+        ------^
+          });
+    fullname: assertions.test.js assertions equality
+"
+`;

test/__snapshots__/error-render.spec.ts.snap

@@ -12,8 +12,8 @@ exports[`error rendering handles exceptions 1`] = `
     </> <gray> 15 | </>}</>
     </> <gray> 16 | </></>
 
-      <dim>at buggy (</>type-error.js<dim>:14:3)</>
-      <dim>at Test.<anonymous> (</>type-error.js<dim>:5:3)</>
+      <dim>at buggy (</>type-error.test.js<dim>:14:3)</>
+      <dim>at Test.<anonymous> (</>type-error.test.js<dim>:5:3)</>
 
 "
 `;

test/assert-render.spec.ts

@@ -0,0 +1,36 @@
+import { testTranslation } from './translate.spec';
+import { TestResult } from '@jest/test-result';
+
+describe('assert rendering', () => {
+  let result: TestResult;
+  beforeAll(async () => {
+    result = await testTranslation('./fixtures/assertions.tap');
+  });
+
+  function findAssert(name: string) {
+    for (const test of result.testResults) {
+      for (const message of test.failureMessages) {
+        if (message.split('\n')[0].trim().endsWith(name)) {
+          return message;
+        }
+      }
+    }
+    throw new Error('no test result found');
+  }
+
+  it('handles ok', async () => {
+    expect(findAssert('is ok')).toMatchSnapshot();
+  });
+
+  it('handles notOk', async () => {
+    expect(findAssert('is notOk')).toMatchSnapshot();
+  });
+
+  it('handles equal', async () => {
+    expect(findAssert('is equal')).toMatchSnapshot();
+  });
+
+  it('handles same', async () => {
+    expect(findAssert('is same')).toMatchSnapshot();
+  });
+});