src/test/suite/problem_matcher.test.ts

// Copyright 2025 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import { FuchsiaDiagnostics } from '../../problem_matcher';
import { describe, it } from 'mocha';
import assert from 'assert';
import * as vscode from 'vscode';

describe('DiagnosticsCollectionTest', function () {
  let case1 = [
    '../../examples/file.cc:10:1: error: expected expression',
    '../../examples/file.cc:15:3: note: this should be logged :)',
    'The fog in SF is nicknamed Karl'
  ];

  const case2 = [
    '../../examples/file.cc:10:1: error: expected expression',
    '../../examples/file.cc:10:1: error: expected expression',
  ];

  const ext = vscode.extensions.getExtension('fuchsia-authors.vscode-fuchsia');
  const diagnostics = new FuchsiaDiagnostics(ext?.packageJSON);

  this.beforeEach(function () {
    diagnostics.clear();
  });

  describe('for the problem matcher', function () {
    it('Matched messages are set in the diagnostics collection', () => {
      case1.forEach((msg) => {
        diagnostics.match(msg);
      });
      let collection = diagnostics.get();
      assert.equal(collection.length, 2);
    });

    it('Matched messages should not contain duplicates', () => {
      case2.forEach((msg) => {
        diagnostics.match(msg);
      });
      let collection = diagnostics.get();
      assert.equal(collection.length, 1);
    });
  });
});