1 files changed, 62 insertions, 0 deletions
diff --git a/browser/base/content/test/general/browser_clipboard_pastefile.js b/browser/base/content/test/general/browser_clipboard_pastefile.js
new file mode 100644
index 000000000..fe87284f3
--- /dev/null
+++ b/browser/base/content/test/general/browser_clipboard_pastefile.js
@@ -0,0 +1,62 @@
+// This test is used to check that pasting files removes all non-file data from
+// event.clipboardData.
+
+add_task(function*() {
+  var textbox = document.createElement("textbox");
+  document.documentElement.appendChild(textbox);
+
+  textbox.focus();
+  textbox.value = "Text";
+  textbox.select();
+
+  yield new Promise((resolve, reject) => {
+    textbox.addEventListener("copy", function copyEvent(event) {
+      textbox.removeEventListener("copy", copyEvent, true);
+      event.clipboardData.setData("text/plain", "Alternate");
+      // For this test, it doesn't matter that the file isn't actually a file.
+      event.clipboardData.setData("application/x-moz-file", "Sample");
+      event.preventDefault();
+      resolve();
+    }, true)
+
+    EventUtils.synthesizeKey("c", { accelKey: true });
+  });
+
+  let tab = yield BrowserTestUtils.openNewForegroundTab(gBrowser,
+              "https://example.com/browser/browser/base/content/test/general/clipboard_pastefile.html");
+  let browser = tab.linkedBrowser;
+
+  yield ContentTask.spawn(browser, { }, function* (arg) {
+    content.document.getElementById("input").focus();
+  });
+
+  yield BrowserTestUtils.synthesizeKey("v", { accelKey: true }, browser);
+
+  let output = yield ContentTask.spawn(browser, { }, function* (arg) {
+    return content.document.getElementById("output").textContent;
+  });
+  is (output, "Passed", "Paste file");
+
+  textbox.focus();
+
+  yield new Promise((resolve, reject) => {
+    textbox.addEventListener("paste", function copyEvent(event) {
+      textbox.removeEventListener("paste", copyEvent, true);
+
+      let dt = event.clipboardData;
+      is(dt.types.length, 3, "number of types");
+      ok(dt.types.includes("text/plain"), "text/plain exists in types");
+      ok(dt.mozTypesAt(0).contains("text/plain"), "text/plain exists in mozTypesAt");
+      is(dt.getData("text/plain"), "Alternate", "text/plain returned in getData");
+      is(dt.mozGetDataAt("text/plain", 0), "Alternate", "text/plain returned in mozGetDataAt");
+
+      resolve();
+    }, true);
+
+    EventUtils.synthesizeKey("v", { accelKey: true });
+  });
+
+  document.documentElement.removeChild(textbox);
+
+  yield BrowserTestUtils.removeTab(tab);
+});