feat: tie in challenge parser

tools/challenge-md-parser/text-to-data.test.js

@@ -0,0 +1,72 @@
+/* global describe it expect */
+const mockAST = require('./fixtures/challenge-html-ast.json');
+const textToData = require('./text-to-data');
+
+describe('text-to-data', () => {
+  const expectedField = 'description';
+  const otherExpectedField = 'instructions';
+  const unexpectedField = 'does-not-exis';
+  let file = { data: {} };
+
+  beforeEach(() => {
+    file = { data: {} };
+  });
+
+  it('should take return a function', () => {
+    const plugin = textToData(['a-section-id']);
+
+    expect(typeof plugin).toEqual('function');
+  });
+
+  it('throws when no argument or the incorrect argument is supplied', () => {
+    expect.assertions(5);
+    const expectedError =
+      "textToData must have an array of section id's supplied";
+    expect(() => {
+      textToData();
+    }).toThrow(expectedError);
+    expect(() => {
+      textToData('');
+    }).toThrow(expectedError);
+    expect(() => {
+      textToData({});
+    }).toThrow(expectedError);
+    expect(() => {
+      textToData(1);
+    }).toThrow(expectedError);
+    expect(() => {
+      textToData([]);
+    }).toThrow(expectedError);
+  });
+
+  it("should only add a value for 'found' section id's", () => {
+    const plugin = textToData([expectedField, unexpectedField]);
+    plugin(mockAST, file);
+    expect(expectedField in file.data && !(unexpectedField in file.data)).toBe(
+      true
+    );
+  });
+
+  it('should add a string relating to the section id to `file.data`', () => {
+    const plugin = textToData([expectedField]);
+    plugin(mockAST, file);
+    const expectedText = 'Welcome to freeCodeCamp';
+    expect(file.data[expectedField].includes(expectedText)).toBe(true);
+  });
+
+  it('should preserve nested html', () => {
+    const plugin = textToData([expectedField]);
+    plugin(mockAST, file);
+    const expectedText = `<blockquote>
+<p>Some text in a blockquote</p>
+<p>Some text in a blockquote, with <code>code</code></p>
+</blockquote>`;
+    expect(file.data[expectedField].includes(expectedText)).toBe(true);
+  });
+
+  it('should have an output to match the snapshot', () => {
+    const plugin = textToData([expectedField, otherExpectedField]);
+    plugin(mockAST, file);
+    expect(file.data).toMatchSnapshot();
+  });
+});