From 2990f93a20f22770b8f3ac5d189ccb606187d35e Mon Sep 17 00:00:00 2001
From: Maxime Thirouin <m@moox.io>
Date: Sun, 4 May 2014 08:44:18 +0200
Subject: [PATCH] Test evalScript

---
 src/scripts/lib/eval-script.js    | 29 +++++++++++++++++++++++++++++
 tests/scripts/lib/eval-scripts.js | 22 ++++++++++++++++++++++
 2 files changed, 51 insertions(+)
 create mode 100644 src/scripts/lib/eval-script.js
 create mode 100644 tests/scripts/lib/eval-scripts.js

diff --git a/src/scripts/lib/eval-script.js b/src/scripts/lib/eval-script.js
new file mode 100644
index 0000000..d34436a
--- /dev/null
+++ b/src/scripts/lib/eval-script.js
@@ -0,0 +1,29 @@
+module.exports = function(el) {
+  // console.log("going to execute script", el)
+
+  var code = (el.text || el.textContent || el.innerHTML || "")
+  var head = document.querySelector("head") || document.documentElement
+  var script = document.createElement("script")
+
+  if (code.match("document.write")) {
+    if (console && console.log) {
+      console.log("Script contains document.write. Can’t be executed correctly. Code skipped ", el)
+    }
+    return false
+  }
+
+  script.type = "text/javascript"
+  try {
+    script.appendChild(document.createTextNode(code))
+  }
+  catch (e) {
+    // old IEs have funky script nodes
+    script.text = code
+  }
+
+  // execute
+  head.insertBefore(script, head.firstChild)
+  head.removeChild(script) // avoid pollution
+
+  return true
+}
diff --git a/tests/scripts/lib/eval-scripts.js b/tests/scripts/lib/eval-scripts.js
new file mode 100644
index 0000000..2d53544
--- /dev/null
+++ b/tests/scripts/lib/eval-scripts.js
@@ -0,0 +1,22 @@
+var tape = require("tape")
+
+var evalScript = require("../../../src/scripts/lib/eval-script")
+
+tape("test evalScript method", function(t) {
+  document.body.className = ""
+
+  var script = document.createElement("script")
+  script.innerHTML = "document.body.className = 'executed'"
+
+  t.equal(document.body.className, "", "script hasn't been executed yet")
+
+  evalScript(script)
+  t.equal(document.body.className, "executed", "script has been properly executed")
+
+  // script.innerHTML = "document.write('failure')"
+  // var bodyText = document.body.text
+  // evalScript(script)
+  // t.equal(document.body.text, bodyText, "document.write hasn't been executed")
+
+  t.end()
+})