ts-node runs tests on OS X but not in Ubuntu

Question

I'm having a strange issue with TS-Error being thrown when I run my tests in Linux but running fine and passing in OS X.

The project is written in Typescript and tested with Mocha (using ts-node). When I run the tests on OS XI don't experience any issues, but as soon as I try and run them on a linux box, they fail, giving the error:

error TS6054: File '/[user]/workspace/content-delivery-application/templates/footer.html.twig' has unsupported extension. The only supported extensions are '.ts', '.tsx', '.d.ts', '.js', '.jsx'

I do include Twig files in the source code, which are bundled as part of the Webpack build process, and I wrap them in try catches and return a stub function in the place of the template. However the test code is run on the precompiled TS files through TS Node, hence the Files have not been packed. Although I want to stress, the 'workaround' try catch has been working in my OS X.

My Mocha opts looks like this:

--require ts-node/register
--require source-map-support/register
--full-trace
--recursive
--timeout 10000
test/**/*.spec.ts

And my tsconfig:

{
  "compilerOptions": {
    /* Basic Options */
    "target": "es5",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */
    "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
    "lib": [                                  /* Specify library files to be included in the compilation. */
      "es5",
      "es2015.promise",
      "es2017"
    ],
     "allowJs": true,                       /* Allow javascript files to be compiled. */
    // "checkJs": true,                       /* Report errors in .js files. */
    // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
    // "declaration": true,                   /* Generates corresponding '.d.ts' file. */
     "sourceMap": true,                     /* Generates corresponding '.map' file. */
    // "outFile": "./",                       /* Concatenate and emit output to single file. */
    // "outDir": "./",                        /* Redirect output structure to the directory. */
    // "rootDir": "./",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
    // "removeComments": true,                /* Do not emit comments to output. */
    // "noEmit": true,                        /* Do not emit outputs. */
    // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
    // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
    // "isolatedModules": true,               /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */

    /* Strict Type-Checking Options */
    "strict": false,                           /* Enable all strict type-checking options. */
    "noImplicitAny": false,                 /* Raise error on expressions and declarations with an implied 'any' type. */
    //"strictNullChecks": true,              /* Enable strict null checks. */
     //"strictFunctionTypes": false,           /* Enable strict checking of function types. */
    // "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */
    //"noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
    // "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */

    /* Additional Checks */
    //"noUnusedLocals": true,                /* Report errors on unused locals. */
    // "noUnusedParameters": true,            /* Report errors on unused parameters. */
    //"noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */
    // "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */

    /* Module Resolution Options */
     "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
    // "baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */
    // "paths": {},                           /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
    // "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
    // "typeRoots": [],                       /* List of folders to include type definitions from. */
    // "types": [],                           /* Type declaration files to be included in compilation. */
    // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
    "esModuleInterop": true,                  /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
    // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */

    /* Source Map Options */
    // "sourceRoot": "./",                    /* Specify the location where debugger should locate TypeScript files instead of source locations. */
    // "mapRoot": "./",                       /* Specify the location where debugger should locate map files instead of generated locations. */
    // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
    // "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */

    /* Experimental Options */
    // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
    // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
    "preserveConstEnums": true,
    "suppressImplicitAnyIndexErrors": true,
    "forceConsistentCasingInFileNames": true
  },
  "exclude": [
      "**/*.spec.ts"
  ],
  "types": [ "typePatches" ]
}

And the culprit function:

public static requireFooter(): any {
        try {
            // needs to be a string literal as requires are calculated on build not at runtime
            return require('../../templates/footer.html.twig');
        }
        catch(e) {
            console.error("[TSError] footer.html.twig is an unsupported extension. <p>data</p> is returned as workaround.");
            return function(data) {
                return "<p>data</p>";
            }
        }     
    }

I Appreciate this is a lot of text, so thank you for reading. Please let me know if you have any thoughts as to what could be causing this.

Answer 1

error TS6054: File '/[user]/workspace/content-delivery-application/templates/footer.html.twig' has unsupported extension. The only supported extensions are '.ts', '.tsx', '.d.ts', '.js', '.jsx'

This is a TypeScript compile time error. The same version of TypeScript on different OSes should give the same result. Therefore your TypeScript versions are different on mac vs. ubuntu. Make them consistent and you will have a consistent error (or no error ) experience.