eslint-plugin-ejs/tests/lib/processors/ejs.js

Parses out ejs declarations found in js files

var processor = require('../../../lib/processors/ejs.js');
var expect = require('chai').expect;

describe('preprocess', function() {
  it('doesn\'t change input with no markers', function() {
    var input = 'var a = 4;\na++;\a = \'stuff\'';
    expect(processor.preprocess(input)).to.deep.equal([input]);
  });

  it('removes <%= markers', function() {
    var input = 'var <%= identifier = 4;';
    expect(processor.preprocess(input)).to.deep.equal(['var identifier = 4;']);
  });

  it('removes <% markers', function() {
    var input = 'var <% identifier = 4;';
    expect(processor.preprocess(input)).to.deep.equal(['var identifier = 4;']);
  });

  it('removes %> markers', function() {
    var input = 'var %> identifier = 4;';
    expect(processor.preprocess(input)).to.deep.equal(['var identifier = 4;']);
  });

  it('removes all ERB markers', function() {
    var input = 'var <%= identifier %> = 4;\n <% doSomething(); %>';
    expect(processor.preprocess(input)).to.deep.equal(['var identifier = 4;\n doSomething();']);
  });

  it('requires spacing inside markers', function() {
    var input = 'var <%=identifier%> = 4;\n <%doSomething();%>';
    expect(processor.preprocess(input)).to.deep.equal(['var <%=identifier%> = 4;\n <%doSomething();%>']);
  });

  it('handles unusual input', function() {
    var input = 'var <$= identifier &> = 4;\n <@ doSomething(); *>';
    expect(processor.preprocess(input)).to.deep.equal(['var <$= identifier &> = 4;\n <@ doSomething(); *>']);
  });
});

describe('postprocess', function() {
  it('doesn\'t change location of a message before any marker', function() {
    var input = 'var <%= identifier = 4;';
    processor.preprocess(input);
    expect(processor.postprocess([[{
      line: 0,
      column: 3
    }]])).to.deep.equal([{
      line: 0,
      column: 3
    }]);
  });

  it('does change location of a message at any marker', function() {
    var input = 'var <%= identifier = 4;';
    processor.preprocess(input);
    expect(processor.postprocess([[{
      line: 0,
      column: 4
    }]])).to.deep.equal([{
      line: 0,
      column: 8
    }]);
  });

  it('can handle a message after multiple markers', function() {
    var input = 'var <%= identifier %> <% sleep(100); %> = 4;';
    processor.preprocess(input);
    expect(processor.postprocess([[{
      line: 0,
      column: 27
    }]])).to.deep.equal([{
      line: 0,
      column: 40
    }]);
  });

  it('can handle multiple messages after multiple markers', function() {
    var input = 'var <%= identifier %> <% sleep(100); %> = 4;';
    processor.preprocess(input);
    expect(processor.postprocess([[
    {
      line: 0,
      column: 14
    },
    {
      line: 0,
      column: 27
    }
    ]])).to.deep.equal([
    {
      line: 0,
      column: 21
    },
    {
      line: 0,
      column: 40
    }
    ]);
  });

  it('can handle multiple lines', function() {
    var input = 'var <%= identifier %> = 4;\n <% doSomething(); %>';
    processor.preprocess(input);
    expect(processor.postprocess([[
    {
      line: 0,
      column: 14
    },
    {
      line: 1,
      column: 11
    }
    ]])).to.deep.equal([
    {
      line: 0,
      column: 21
    },
    {
      line: 1,
      column: 14
    }
    ]);
  });
});