add marked.use tests

markedjs · Apr 19, 2020 · dd86b71 · dd86b71
1 parent cf1abaa
commit dd86b71
Showing 1 changed file with 100 additions and 0 deletions.
diff --git a/test/unit/marked-spec.js b/test/unit/marked-spec.js
@@ -96,3 +96,103 @@ describe('inlineLexer', () => {
     expect(renderer.html).toHaveBeenCalledWith('<img alt="MY IMAGE" src="example.png" />');
   });
 });
+
+describe('use extension', () => {
+  it('should use renderer', () => {
+    const extension = {
+      renderer: {
+        paragraph(text) {
+          return 'extension';
+        }
+      }
+    };
+    spyOn(extension.renderer, 'paragraph').and.callThrough();
+    marked.use(extension);
+    const html = marked('text');
+    expect(extension.renderer.paragraph).toHaveBeenCalledWith('text');
+    expect(html).toBe('extension');
+  });
+
+  it('should use tokenizer', () => {
+    const extension = {
+      tokenizer: {
+        paragraph(text) {
+          return {
+            type: 'paragraph',
+            raw: text,
+            text: 'extension'
+          };
+        }
+      }
+    };
+    spyOn(extension.tokenizer, 'paragraph').and.callThrough();
+    marked.use(extension);
+    const html = marked('text');
+    expect(extension.tokenizer.paragraph).toHaveBeenCalledWith('text');
+    expect(html).toBe('<p>extension</p>\n');
+  });
+
+  it('should use options from extension', () => {
+    const extension = {
+      headerIds: false
+    };
+    marked.use(extension);
+    const html = marked('# heading');
+    expect(html).toBe('<h1>heading</h1>\n');
+  });
+
+  it('should use last extension function and not override others', () => {
+    const extension1 = {
+      renderer: {
+        paragraph(text) {
+          return 'extension1 paragraph\n';
+        },
+        html(html) {
+          return 'extension1 html\n';
+        }
+      }
+    };
+    const extension2 = {
+      renderer: {
+        paragraph(text) {
+          return 'extension2 paragraph\n';
+        }
+      }
+    };
+    marked.use(extension1);
+    marked.use(extension2);
+    const html = marked(`
+paragraph
+
+<html />
+
+# heading
+`);
+    expect(html).toBe('extension2 paragraph\nextension1 html\n<h1 id="heading">heading</h1>\n');
+  });
+
+  it('should get options with this.options', () => {
+    const extension = {
+      renderer: {
+        heading: () => {
+          return this.options ? 'arrow options\n' : 'arrow no options\n';
+        },
+        html: function() {
+          return this.options ? 'function options\n' : 'function no options\n';
+        },
+        paragraph() {
+          return this.options ? 'shorthand options\n' : 'shorthand no options\n';
+        }
+      }
+    };
+    marked.use(extension);
+    const html = marked(`
+# heading
+
+<html />
+
+paragraph
+`);
+    expect(html).toBe('arrow no options\nfunction options\nshorthand options\n');
+  });
+});