import fs = require('fs'); describe('csc tests', () => { it('Valid regular expression', async () => { var cscFile = require('../.github/csc.json'); var regex = cscFile['problemMatcher'][0]['pattern'][0]['regexp']; console.log(regex); var re = new RegExp(regex); // Ideally we would verify that this var stringsToMatch = [ 'Program.cs(10,79): error CS1002: ; expected [/Users/zacharyeisinger/Documents/repo/setup-dotnet/__tests__/sample-broken-csproj/sample.csproj]', "S:\\Msbuild\\src\\Build\\Evaluation\\ExpressionShredder.cs(33,7): error CS1003: Syntax error, ',' expected [S:\\msbuild\\src\\Build\\Microsoft.Build.csproj > Properties:prop]" ]; stringsToMatch.forEach(string => { var matchStr = string.match(re); console.log(matchStr); expect(matchStr).toEqual(expect.anything()); }); }, 10000); });