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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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Add m-esr52 at 52.6.0
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+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Check that when the viewport is resized, the computed-view refreshes.
+
+const TEST_URI = "data:text/html;charset=utf-8,<html><style>" +
+ "div {" +
+ " width: 500px;" +
+ " height: 10px;" +
+ " background: purple;" +
+ "} " +
+ "@media screen and (max-width: 200px) {" +
+ " div { " +
+ " width: 100px;" +
+ " }" +
+ "};" +
+ "</style><div></div></html>";
+
+add_task(function* () {
+ yield addTab(TEST_URI);
+
+ info("Open the responsive design mode and set its size to 500x500 to start");
+ let { rdm, manager } = yield openRDM();
+ yield setSize(rdm, manager, 500, 500);
+
+ info("Open the inspector, computed-view and select the test node");
+ let {inspector, view} = yield openComputedView();
+ yield selectNode("div", inspector);
+
+ info("Try shrinking the viewport and checking the applied styles");
+ yield testShrink(view, inspector, rdm, manager);
+
+ info("Try growing the viewport and checking the applied styles");
+ yield testGrow(view, inspector, rdm, manager);
+
+ yield closeRDM(rdm);
+ yield closeToolbox();
+});
+
+function* testShrink(computedView, inspector, rdm, manager) {
+ is(computedWidth(computedView), "500px", "Should show 500px initially.");
+
+ let onRefresh = inspector.once("computed-view-refreshed");
+ yield setSize(rdm, manager, 100, 100);
+ yield onRefresh;
+
+ is(computedWidth(computedView), "100px", "Should be 100px after shrinking.");
+}
+
+function* testGrow(computedView, inspector, rdm, manager) {
+ let onRefresh = inspector.once("computed-view-refreshed");
+ yield setSize(rdm, manager, 500, 500);
+ yield onRefresh;
+
+ is(computedWidth(computedView), "500px", "Should be 500px after growing.");
+}
+
+function computedWidth(computedView) {
+ for (let prop of computedView.propertyViews) {
+ if (prop.name === "width") {
+ return prop.valueNode.textContent;
+ }
+ }
+ return null;
+}