add failing hint tests to fix later

Author: ShMcK

test/hint.spec.js

@@ -99,4 +99,40 @@ describe('@hint', () => {
     });
   });
 
+  it('should work with a second opening bracket', () => {
+    const lines = ['+ Task One', '', "@hint('an example with a bracket ( in the middle')"];
+    const next = task({ result: result(), lines, index: index() });
+    const nextTask = next.pages[0].tasks[0];
+    expect(nextTask).to.deep.equal({
+      hints: [
+        'an example with a bracket ( in the middle'
+      ],
+      description: 'Task One\n'
+    });
+  });
+
+  it('should work with a curly bracket', () => {
+    const lines = ['+ Task One', '', "@hint('an example with a bracket { in the middle')"];
+    const next = task({ result: result(), lines, index: index() });
+    const nextTask = next.pages[0].tasks[0];
+    expect(nextTask).to.deep.equal({
+      hints: [
+        'an example with a bracket { in the middle'
+      ],
+      description: 'Task One\n'
+    });
+  });
+
+  it('should work with a closing bracket', () => {
+    const lines = ['+ Task One', '', "@hint('an example with a bracket ) in the middle')"];
+    const next = task({ result: result(), lines, index: index() });
+    const nextTask = next.pages[0].tasks[0];
+    expect(nextTask).to.deep.equal({
+      hints: [
+        'an example with a bracket ) in the middle'
+      ],
+      description: 'Task One\n'
+    });
+  });
+
 }); // @hint