test.js

'use strict';
const expect = require('chai').expect;
const Plugin = require('./');
const fs = require('fs');

describe('Plugin', () => {
  const plugin = new Plugin({
    paths: {public: 'build'}
  });

  it('should be an object', () => {
    expect(plugin).to.be.an('object');
  });

  it('should have #compileStatic method', () => {
    expect(plugin.compileStatic).to.be.a('function');
  });

  it('should has #compile method', () => {
    expect(plugin.compile).to.be.a('function');
  });

  describe('Plugin.compile', () => {
    const path = "./build";

    afterEach(done => {
      fs.unlink(path, done);
    });

    it('should compile and produce a build file', function (done) {
      plugin.disabled = false;

      var content = '<p>blah</p>';
      var minified = '<p>blah';

      testCompile(content, minified, done);
    });

    it('should minify file', function (done) {
      plugin.disabled = false;
      plugin.htmlMin = {
        removeComments: true
      };

      var content = '<!-- some comment --><p>blah</p>';
      var minified = '<p>blah';

      testCompile(content, minified, done);
    });

    it('should minify front matter', function (done) {
      plugin.htmlMin = {
        preserveLineBreaks: false,
        collapseWhitespace: true
      };
      plugin.preserveFrontMatter = false;

      var content = '---\ntitle: test\nname: test\n---\n<p>blah</p>';
      var minified = '--- title: test name: test ---<p>blah';

      testCompile(content, minified, done);
    });

    it('should preserve front matter', function (done) {
      plugin.disabled = false;
      plugin.preserveFrontMatter = true;
      plugin.removeFrontMatter = false;
      plugin.htmlMin = {
        preserveLineBreaks: false,
        collapseWhitespace: true
      };

      var content = '---\ntitle: test\nname: test\n---\n<p>blah</p>';
      var minified = '---\ntitle: test\nname: test\n---\n<p>blah';

      testCompile(content, minified, done);
    });

    it('should preserve front matter with custom separator', function (done) {
      plugin.disabled = false;
      plugin.preserveFrontMatter = true;
      plugin.removeFrontMatter = false;
      plugin.frontMatterSeparator = '= yaml =';
      plugin.htmlMin = {
        preserveLineBreaks: false,
        collapseWhitespace: true
      };

      var content = '= yaml =\ntitle: test\nname: test\n= yaml =\n<p>blah</p>';
      var minified = '= yaml =\ntitle: test\nname: test\n= yaml =\n<p>blah';

      testCompile(content, minified, done);
    });

    it('should remove front matter', function (done) {
      plugin.disabled = false;
      plugin.htmlMin = {
        preserveLineBreaks: false,
        collapseWhitespace: true
      };
      plugin.removeFrontMatter = true;

      var content = '---\ntitle: test\nname: test\n---\n<p>blah</p>';
      var minified = '<p>blah';

      testCompile(content, minified, done);
    });

    it('should not remove front matter when disabled', function (done) {
      plugin.disabled = true;
      plugin.htmlMin = {
        preserveLineBreaks: false,
        collapseWhitespace: true
      };
      plugin.removeFrontMatter = true;

      var content = '---\ntitle: test\nname: test\n---\n<p>blah</p>';

      testCompile(content, content, done);
    });

    it('should force remove front matter when disabled', function (done) {
      plugin.disabled = true;
      plugin.htmlMin = {
        preserveLineBreaks: false,
        collapseWhitespace: true
      };
      plugin.forceRemoveFrontMatter = true;

      var content = '---\ntitle: test\nname: test\n---\n<p>blah</p>';
      var minified = '<p>blah</p>';

      testCompile(content, minified, done);
    });

    function testCompile(content, expected, done) {
      plugin.compile(content, '', function (error) {
        expect(error).not.to.be.ok;
        expect(fs.existsSync(path)).to.be.ok;

        const filecontents = fs.readFileSync(path);
        expect(filecontents.toString()).to.equal(expected);

        done();
      });
    }
  });

  describe('Plugin.compileStatic', () => {
    const testfile = {
      data: "",
      path: "./build"
    };

    it('should compile', function (done) {
      plugin.disabled = false;
      plugin.compileAssets = true;

      testfile.data = '<p>blah</p>';
      var minified = '<p>blah';

      testCompileStatic(testfile, minified, done);
    });

    it('should minify file', function (done) {
      plugin.disabled = false;
      plugin.htmlMin = {
        removeComments: true
      };
      plugin.preserveFrontMatter = false;
      plugin.removeFrontMatter = false;
      plugin.forceRemoveFrontMatter = false;

      testfile.data = '<!-- some comment --><p>blah</p>';
      var minified = '<p>blah';

      testCompileStatic(testfile, minified, done);
    });

    it('should minify front matter', function (done) {
      plugin.htmlMin = {
        preserveLineBreaks: false,
        collapseWhitespace: true
      };
      plugin.preserveFrontMatter = false;
      plugin.removeFrontMatter = false;
      plugin.forceRemoveFrontMatter = false;

      testfile.data = '---\ntitle: test\nname: test\n---\n<p>blah</p>';
      var minified = '--- title: test name: test ---<p>blah';

      testCompileStatic(testfile, minified, done);
    });

    it('should preserve front matter', function (done) {
      plugin.disabled = false;
      plugin.preserveFrontMatter = true;
      plugin.removeFrontMatter = false;
      plugin.forceRemoveFrontMatter = false;
      plugin.frontMatterSeparator = '---';
      plugin.htmlMin = {
        preserveLineBreaks: false,
        collapseWhitespace: true
      };

      testfile.data = '---\ntitle: test\nname: test\n---\n<p>blah</p>';
      var minified = '---\ntitle: test\nname: test\n---\n<p>blah';

      testCompileStatic(testfile, minified, done);
    });

    it('should preserve front matter with custom separator', function (done) {
      plugin.disabled = false;
      plugin.preserveFrontMatter = true;
      plugin.removeFrontMatter = false;
      plugin.frontMatterSeparator = '= yaml =';
      plugin.htmlMin = {
        preserveLineBreaks: false,
        collapseWhitespace: true
      };

      testfile.data = '= yaml =\ntitle: test\nname: test\n= yaml =\n<p>blah</p>';
      var minified = '= yaml =\ntitle: test\nname: test\n= yaml =\n<p>blah';

      testCompileStatic(testfile, minified, done);
    });

    it('should remove front matter', function (done) {
      plugin.disabled = false;
      plugin.htmlMin = {
        preserveLineBreaks: false,
        collapseWhitespace: true
      };
      plugin.removeFrontMatter = true;

      testfile.data = '---\ntitle: test\nname: test\n---\n<p>blah</p>';
      var minified = '<p>blah';

      testCompileStatic(testfile, minified, done);
    });

    it('should not remove front matter when disabled', function (done) {
      plugin.disabled = true;
      plugin.htmlMin = {
        preserveLineBreaks: false,
        collapseWhitespace: true
      };
      plugin.removeFrontMatter = true;

      testfile.data = '---\ntitle: test\nname: test\n---\n<p>blah</p>';

      testCompileStatic(testfile, testfile.data, done);
    });

    it('should force remove front matter when disabled', function (done) {
      plugin.disabled = true;
      plugin.htmlMin = {
        preserveLineBreaks: false,
        collapseWhitespace: true
      };
      plugin.forceRemoveFrontMatter = true;

      testfile.data = '---\ntitle: test\nname: test\n---\n<p>blah</p>';
      var minified = '<p>blah</p>';

      testCompileStatic(testfile, minified, done);
    });

    function testCompileStatic(testfile, expected, done) {
      plugin.compileStatic(testfile).then((file) => {
        expect(file.data).to.equal(expected);
        done();
      }).catch(done);
    }
  });
});