1 files changed, 106 insertions, 0 deletions
diff --git a/devtools/client/styleeditor/test/browser_styleeditor_new.js b/devtools/client/styleeditor/test/browser_styleeditor_new.js
new file mode 100644
index 0000000000..f583759c00
--- /dev/null
+++ b/devtools/client/styleeditor/test/browser_styleeditor_new.js
@@ -0,0 +1,106 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+// Test that new sheets can be added and edited.
+
+const TESTCASE_URI = TEST_BASE_HTTP + "simple.html";
+
+const TESTCASE_CSS_SOURCE = "body{background-color:red;";
+
+add_task(async function () {
+  const { panel, ui } = await openStyleEditorForURL(TESTCASE_URI);
+
+  const editor = await createNewStyleSheet(ui, panel.panelWindow);
+  await testInitialState(editor);
+
+  const originalHref = editor.styleSheet.href;
+  const waitForPropertyChange = onPropertyChange(editor);
+
+  await typeInEditor(editor, panel.panelWindow);
+
+  await waitForPropertyChange;
+
+  await testUpdated(editor, originalHref);
+});
+
+function onPropertyChange(editor) {
+  return new Promise(resolve => {
+    editor.on("property-change", function onProp(property) {
+      // wait for text to be entered fully
+      const text = editor.sourceEditor.getText();
+      if (property == "ruleCount" && text == TESTCASE_CSS_SOURCE + "}") {
+        editor.off("property-change", onProp);
+        resolve();
+      }
+    });
+  });
+}
+
+async function testInitialState(editor) {
+  info("Testing the initial state of the new editor");
+
+  let summary = editor.summary;
+
+  ok(editor.sourceLoaded, "new editor is loaded when attached");
+  ok(editor.isNew, "new editor has isNew flag");
+
+  if (!editor.sourceEditor.hasFocus()) {
+    info("Waiting for stylesheet editor to gain focus");
+    await editor.sourceEditor.once("focus");
+  }
+  ok(editor.sourceEditor.hasFocus(), "new editor has focus");
+
+  summary = editor.summary;
+  const ruleCount = summary.querySelector(".stylesheet-rule-count").textContent;
+  is(parseInt(ruleCount, 10), 0, "new editor initially shows 0 rules");
+
+  const color = await getComputedStyleProperty({
+    selector: "body",
+    name: "background-color",
+  });
+  is(
+    color,
+    "rgb(255, 255, 255)",
+    "content's background color is initially white"
+  );
+}
+
+function typeInEditor(editor, panelWindow) {
+  return new Promise(resolve => {
+    waitForFocus(function () {
+      for (const c of TESTCASE_CSS_SOURCE) {
+        EventUtils.synthesizeKey(c, {}, panelWindow);
+      }
+      ok(editor.unsaved, "new editor has unsaved flag");
+
+      resolve();
+    }, panelWindow);
+  });
+}
+
+async function testUpdated(editor, originalHref) {
+  info("Testing the state of the new editor after editing it");
+
+  is(
+    editor.sourceEditor.getText(),
+    TESTCASE_CSS_SOURCE + "}",
+    "rule bracket has been auto-closed"
+  );
+
+  const count = await waitFor(() => {
+    const int = parseInt(
+      editor.summary.querySelector(".stylesheet-rule-count").textContent,
+      10
+    );
+    if (int == 0) {
+      return false;
+    }
+
+    return int;
+  });
+
+  is(count, 1, "new editor shows 1 rule after modification");
+
+  is(editor.styleSheet.href, originalHref, "style sheet href did not change");
+}