From e9479615a1ab04b3d26821aac5a8a2d05bc457aa Mon Sep 17 00:00:00 2001
From: Kacper Wiszczuk <kacperwiszczuk@gmail.com>
Date: Tue, 19 Mar 2019 17:12:02 +0100
Subject: [PATCH 1/2] Check for undefined/null children

---
 src/helpers/getByAPI.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/helpers/getByAPI.js b/src/helpers/getByAPI.js
index 91b131a08..0bb9c14df 100644
--- a/src/helpers/getByAPI.js
+++ b/src/helpers/getByAPI.js
@@ -20,8 +20,9 @@ const getNodeByText = (node, text) => {
     const isTextComponent =
       filterNodeByType(node, Text) || filterNodeByType(node, TextInput);
     if (isTextComponent) {
-      const textChildren = React.Children.map(node.props.children, child =>
-        child.toString()
+      const textChildren = React.Children.map(
+        node.props.children,
+        child => (child ? child.toString() : '')
       );
       if (textChildren) {
         const textToTest = textChildren.join('');

From aac7c79d36198d8f156e9ba14e486214f4ed6828 Mon Sep 17 00:00:00 2001
From: Kacper Wiszczuk <kacperwiszczuk@gmail.com>
Date: Tue, 19 Mar 2019 17:19:18 +0100
Subject: [PATCH 2/2] Add explanation comment

---
 src/helpers/getByAPI.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/helpers/getByAPI.js b/src/helpers/getByAPI.js
index 0bb9c14df..28685ff29 100644
--- a/src/helpers/getByAPI.js
+++ b/src/helpers/getByAPI.js
@@ -22,6 +22,7 @@ const getNodeByText = (node, text) => {
     if (isTextComponent) {
       const textChildren = React.Children.map(
         node.props.children,
+        // In some cases child might be undefined
         child => (child ? child.toString() : '')
       );
       if (textChildren) {