Getting "TypeError: language is not a function" in unit tests about ngx-highlightjs

[tommysitu]

@FrancescoBorzi I had the same issue but it works after I changed my tsconfig.spec.json to use es2015 module for the compiler:

{
  "extends": "../tsconfig.json",
  "compilerOptions": {
    "outDir": "../out-tsc/spec",
//    "module": "commonjs",
    "module": "es2015",
    "types": [
      "jasmine",
      "node"
    ]
  },
  "files": [
    "test.ts",
    "polyfills.ts"
  ],
  "include": [
    "**/*.spec.ts",
    "**/*.d.ts"
  ]
}

[MurhafSousli]

The library does not have unit tests, and I cannot help on that regards. if you think it can fixed from this package and you know how to fix it, PRs are welcome!

But this is not a bug

[FrancescoBorzi]

@MurhafSousli of course this is a bug since using this directive breaks the tests

[HYrelav]

I get the same error if I use the curly-brackets like { xml } in the import, I removed the curly-brackets and the error left.
example: import xml from 'highlight.js/lib/languages/xml';

[FrancescoBorzi]

@HYrelav thanks for sharing this, however for me it doesn't work with or without curly-braces.

This is how I'm using it:

import sql from 'highlight.js/lib/languages/sql';

export function hljsLanguages() {
  return [
    { name: 'sql', func: sql },
  ];
}

export const highlightOptions = {
  languages: hljsLanguages,
};

// ...
imports: [
    //...
    HighlightModule.forRoot(highlightOptions)
  ]
// ...

also I've tested both targetting es5 and es6, it's broken on both.

[FrancescoBorzi]

@tommysitu thanks a lot, that works

[mhamel06]

I also found that importing the language with the * syntax also works in tests. e.g.

import * as xml from 'highlight.js/lib/languages/xml';