From a8ec0d219bbd507f51a4d9276c4a1dcc020245af Mon Sep 17 00:00:00 2001
From: Juho Teperi <juho.teperi@iki.fi>
Date: Tue, 28 Nov 2017 15:41:30 +0200
Subject: [PATCH] Add test for child context

---
 project.clj                                 |  3 ++-
 test-environments/browser-node/package.json | 25 ++++++++---------
 test/reagenttest/testreagent.cljs           | 30 ++++++++++++++++++++-
 3 files changed, 44 insertions(+), 14 deletions(-)

diff --git a/project.clj b/project.clj
index 1925c3b..dfcac76 100644
--- a/project.clj
+++ b/project.clj
@@ -29,7 +29,8 @@
                                        [cljsjs/react-dom-server "16.1.0-0"]]}
 
              :dev {:dependencies [[figwheel "0.5.14"]
-                                  [doo "0.1.8"]]
+                                  [doo "0.1.8"]
+                                  [cljsjs/prop-types "15.6.0-0"]]
                    :source-paths ["demo" "examples/todomvc/src" "examples/simple/src" "examples/geometry/src"]
                    :resource-paths ["site" "target/cljsbuild/client"]}}
 
diff --git a/test-environments/browser-node/package.json b/test-environments/browser-node/package.json
index d596c0a..b568d77 100644
--- a/test-environments/browser-node/package.json
+++ b/test-environments/browser-node/package.json
@@ -1,14 +1,15 @@
 {
-    "dependencies": {
-        "@cljs-oss/module-deps": "1.1.1",
-        "create-react-class": "^15.6.2",
-        "react": "^15.6.2",
-        "react-dom": "^15.6.2"
-    },
-    "devDependencies": {
-        "karma": "^1.7.1",
-        "karma-chrome-launcher": "^2.2.0",
-        "karma-cljs-test": "^0.1.0",
-        "karma-junit-reporter": "^1.2.0"
-    }
+  "dependencies": {
+    "@cljs-oss/module-deps": "1.1.1",
+    "create-react-class": "^15.6.2",
+    "prop-types": "^15.6.0",
+    "react": "^15.6.2",
+    "react-dom": "^15.6.2"
+  },
+  "devDependencies": {
+    "karma": "^1.7.1",
+    "karma-chrome-launcher": "^2.2.0",
+    "karma-cljs-test": "^0.1.0",
+    "karma-junit-reporter": "^1.2.0"
+  }
 }
diff --git a/test/reagenttest/testreagent.cljs b/test/reagenttest/testreagent.cljs
index e142823..1359ed7 100644
--- a/test/reagenttest/testreagent.cljs
+++ b/test/reagenttest/testreagent.cljs
@@ -9,7 +9,9 @@
             [reagent.dom.server :as server]
             [reagent.impl.util :as util]
             [reagenttest.utils :as u :refer [with-mounted-component found-in]]
-            [goog.string :as gstr]))
+            [goog.string :as gstr]
+            [goog.object :as gobj]
+            [prop-types :as prop-types]))
 
 (def tests-done (atom {}))
 
@@ -1079,3 +1081,29 @@
   (is (= "<i> </i>"
          (server/render-to-static-markup
            [:i (gstr/unescapeEntities "&nbsp;")]))))
+
+(defn context-wrapper []
+  (r/create-class
+    {:get-child-context (fn []
+                          (this-as this
+                            #js {:foo "bar"}))
+     :child-context-types #js {:foo prop-types/string.isRequired}
+     :reagent-render (fn [child]
+                       [:div
+                        "parent,"
+                        child])}))
+
+(defn context-child []
+  (r/create-class
+    {:context-types #js {:foo prop-types/string.isRequired}
+     :reagent-render (fn []
+                       (let [this (r/current-component)]
+                         ;; Context property name is not mangled, so need to  use gobj/get to access property by string name
+                         ;; React extern handles context name.
+                         [:div "child," (gobj/get (.-context this) "foo")]))}))
+
+(deftest context-test
+  (with-mounted-component [context-wrapper [context-child]]
+    (fn [c div]
+      (is (= "parent,child,bar"
+             (.-innerText div))))))