From 83232bb4ff5e7e4edecb3ea8e7f5bdeef7464ba9 Mon Sep 17 00:00:00 2001
From: Samuel Reed <samuel.trace.reed@gmail.com>
Date: Sun, 21 May 2017 11:47:35 -0500
Subject: [PATCH] Add regression test for transform-react-constant-elements
 (#5552)

---
 .../actual.js                                 | 16 ++++++++++++++
 .../expected.js                               | 21 +++++++++++++++++++
 .../options.json                              |  3 +++
 3 files changed, 40 insertions(+)
 create mode 100644 packages/babel-plugin-transform-react-constant-elements/test/fixtures/constant-elements/class-assign-unreferenced-param-deopt/actual.js
 create mode 100644 packages/babel-plugin-transform-react-constant-elements/test/fixtures/constant-elements/class-assign-unreferenced-param-deopt/expected.js
 create mode 100644 packages/babel-plugin-transform-react-constant-elements/test/fixtures/constant-elements/class-assign-unreferenced-param-deopt/options.json

diff --git a/packages/babel-plugin-transform-react-constant-elements/test/fixtures/constant-elements/class-assign-unreferenced-param-deopt/actual.js b/packages/babel-plugin-transform-react-constant-elements/test/fixtures/constant-elements/class-assign-unreferenced-param-deopt/actual.js
new file mode 100644
index 0000000000..e81fd9a56b
--- /dev/null
+++ b/packages/babel-plugin-transform-react-constant-elements/test/fixtures/constant-elements/class-assign-unreferenced-param-deopt/actual.js
@@ -0,0 +1,16 @@
+import React from 'react';
+
+// Regression test for https://github.com/babel/babel/issues/5552
+class BugReport extends React.Component {
+    thisWontWork = ({ color }) => (data) => {
+        return <div color={ color }>does not reference data</div>;
+    };
+
+    thisWorks = ({ color }) => (data) => {
+        return <div color={ color }>{ data }</div>;
+    };
+
+    render() {
+        return <div />
+    }
+}
diff --git a/packages/babel-plugin-transform-react-constant-elements/test/fixtures/constant-elements/class-assign-unreferenced-param-deopt/expected.js b/packages/babel-plugin-transform-react-constant-elements/test/fixtures/constant-elements/class-assign-unreferenced-param-deopt/expected.js
new file mode 100644
index 0000000000..cbdf69c556
--- /dev/null
+++ b/packages/babel-plugin-transform-react-constant-elements/test/fixtures/constant-elements/class-assign-unreferenced-param-deopt/expected.js
@@ -0,0 +1,21 @@
+import React from 'react';
+
+// Regression test for https://github.com/babel/babel/issues/5552
+
+var _ref = <div />;
+
+class BugReport extends React.Component {
+    constructor(...args) {
+        var _temp;
+
+        return _temp = super(...args), this.thisWontWork = ({ color }) => data => {
+            return <div color={color}>does not reference data</div>;
+        }, this.thisWorks = ({ color }) => data => {
+            return <div color={color}>{data}</div>;
+        }, _temp;
+    }
+
+    render() {
+        return _ref;
+    }
+}
\ No newline at end of file
diff --git a/packages/babel-plugin-transform-react-constant-elements/test/fixtures/constant-elements/class-assign-unreferenced-param-deopt/options.json b/packages/babel-plugin-transform-react-constant-elements/test/fixtures/constant-elements/class-assign-unreferenced-param-deopt/options.json
new file mode 100644
index 0000000000..a90fd49ed0
--- /dev/null
+++ b/packages/babel-plugin-transform-react-constant-elements/test/fixtures/constant-elements/class-assign-unreferenced-param-deopt/options.json
@@ -0,0 +1,3 @@
+{
+  "plugins": ["transform-class-properties", "transform-react-constant-elements", "syntax-jsx"]
+}