1 files changed, 66 insertions, 0 deletions
diff --git a/devtools/client/inspector/markup/test/browser_markup_whitespace.js b/devtools/client/inspector/markup/test/browser_markup_whitespace.js
new file mode 100644
index 000000000..63a0d0467
--- /dev/null
+++ b/devtools/client/inspector/markup/test/browser_markup_whitespace.js
@@ -0,0 +1,66 @@
+/* vim: set ts=2 et sw=2 tw=80: */
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Test that whitespace text nodes do show up in the markup-view when needed.
+
+const TEST_URL = URL_ROOT + "doc_markup_whitespace.html";
+
+add_task(function* () {
+  let {inspector, testActor} = yield openInspectorForURL(TEST_URL);
+  let {markup} = inspector;
+
+  yield markup.expandAll();
+
+  info("Verify the number of child nodes and child elements in body");
+
+  // Body has 5 element children, but there are 6 text nodes in there too, they come from
+  // the HTML file formatting (spaces and carriage returns).
+  let {numNodes, numChildren} = yield testActor.getNodeInfo("body");
+  is(numNodes, 11, "The body node has 11 child nodes (includes text nodes)");
+  is(numChildren, 5, "The body node has 5 child elements (only element nodes)");
+
+  // In body, there are only block-level elements, so whitespace text nodes do not have
+  // layout, so they should be skipped in the markup-view.
+  info("Check that the body's whitespace text node children aren't shown");
+  let bodyContainer = markup.getContainer(inspector.selection.nodeFront);
+  let childContainers = bodyContainer.getChildContainers();
+  is(childContainers.length, 5,
+     "Only the element nodes are shown in the markup view");
+
+  // div#inline has 3 element children, but there are 4 text nodes in there too, like in
+  // body, they come from spaces and carriage returns in the HTML file.
+  info("Verify the number of child nodes and child elements in div#inline");
+  ({numNodes, numChildren} = yield testActor.getNodeInfo("#inline"));
+  is(numNodes, 7, "The div#inline node has 7 child nodes (includes text nodes)");
+  is(numChildren, 3, "The div#inline node has 3 child elements (only element nodes)");
+
+  // Within the inline formatting context in div#inline, the whitespace text nodes between
+  // the images have layout, so they should appear in the markup-view.
+  info("Check that the div#inline's whitespace text node children are shown");
+  yield selectNode("#inline", inspector);
+  let divContainer = markup.getContainer(inspector.selection.nodeFront);
+  childContainers = divContainer.getChildContainers();
+  is(childContainers.length, 5,
+     "Both the element nodes and some text nodes are shown in the markup view");
+
+  // div#pre has 2 element children, but there are 3 text nodes in there too, like in
+  // div#inline, they come from spaces and carriage returns in the HTML file.
+  info("Verify the number of child nodes and child elements in div#pre");
+  ({numNodes, numChildren} = yield testActor.getNodeInfo("#pre"));
+  is(numNodes, 5, "The div#pre node has 5 child nodes (includes text nodes)");
+  is(numChildren, 2, "The div#pre node has 2 child elements (only element nodes)");
+
+  // Within the inline formatting context in div#pre, the whitespace text nodes between
+  // the images have layout, so they should appear in the markup-view, but since
+  // white-space is set to pre, then the whitespace text nodes before and after the first
+  // and last image should also appear.
+  info("Check that the div#pre's whitespace text node children are shown");
+  yield selectNode("#pre", inspector);
+  divContainer = markup.getContainer(inspector.selection.nodeFront);
+  childContainers = divContainer.getChildContainers();
+  is(childContainers.length, 5,
+     "Both the element nodes and all text nodes are shown in the markup view");
+});