From 8b8d9efc568a08debcd0efeb04925f9287162c95 Mon Sep 17 00:00:00 2001
From: Vignesh <vigneshshankar@gmail.com>
Date: Fri, 24 Aug 2018 17:24:23 +0800
Subject: [PATCH] Fix MCQ option 0 not showing hints (#329)

* Fix MCQ option 0 not displaying intent and hints

Truthy check, 0 is false. T-T

* Format file

* Keep one mock data as option 0

* Bump version
---
 package.json                            | 2 +-
 src/components/workspace/MCQChooser.tsx | 6 +++---
 src/mocks/assessmentAPI.ts              | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/package.json b/package.json
index 90c9c49b05..a6021928f7 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "private": true,
   "name": "cadet-frontend",
-  "version": "1.0.4",
+  "version": "1.0.5",
   "scripts-info": {
     "format": "Format source code",
     "start": "Start the Webpack development server",
diff --git a/src/components/workspace/MCQChooser.tsx b/src/components/workspace/MCQChooser.tsx
index 9685cdfcc4..1553683e84 100644
--- a/src/components/workspace/MCQChooser.tsx
+++ b/src/components/workspace/MCQChooser.tsx
@@ -60,7 +60,7 @@ class MCQChooser extends React.PureComponent<IMCQChooserProps, State> {
         mcqOption: i
       })
     }
-    const shouldDisplayMessage = this.props.mcq.solution && this.props.mcq.choices[i].hint
+    const shouldDisplayMessage = this.props.mcq.solution !== null && this.props.mcq.choices[i].hint
     if (shouldDisplayMessage) {
       const hintElement = <Markdown content={this.props.mcq.choices[i].hint!} />
       if (i === this.props.mcq.solution) {
@@ -86,8 +86,8 @@ class MCQChooser extends React.PureComponent<IMCQChooserProps, State> {
     solution: number | null
   ): Intent => {
     const active = currentOption === chosenOption
-    const correctOptionSelected = active && solution && currentOption === solution
-    if (!solution) {
+    const correctOptionSelected = active && solution !== null && currentOption === solution
+    if (solution === null) {
       return Intent.NONE
     } else if (active && correctOptionSelected) {
       return Intent.SUCCESS
diff --git a/src/mocks/assessmentAPI.ts b/src/mocks/assessmentAPI.ts
index 753d2d2425..2ae61eb16d 100644
--- a/src/mocks/assessmentAPI.ts
+++ b/src/mocks/assessmentAPI.ts
@@ -213,7 +213,7 @@ What's your favourite dinner food?
     id: 2,
     library: mockCurveLibrary,
     type: 'mcq',
-    solution: 2
+    solution: 0
   },
   {
     answer: 3,