1 files changed, 65 insertions, 0 deletions
diff --git a/devtools/client/shared/test/browser_filter-editor-03.js b/devtools/client/shared/test/browser_filter-editor-03.js
new file mode 100644
index 000000000..67d36b6b2
--- /dev/null
+++ b/devtools/client/shared/test/browser_filter-editor-03.js
@@ -0,0 +1,65 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Tests the Filter Editor Widget add, removeAt, updateAt, getValueAt methods
+
+const {CSSFilterEditorWidget} = require("devtools/client/shared/widgets/FilterWidget");
+const {getClientCssProperties} = require("devtools/shared/fronts/css-properties");
+const GRAYSCALE_MAX = 100;
+const INVERT_MIN = 0;
+
+const TEST_URI = `data:text/html,<div id="filter-container" />`;
+
+add_task(function* () {
+  let [,, doc] = yield createHost("bottom", TEST_URI);
+  const cssIsValid = getClientCssProperties().getValidityChecker(doc);
+
+  const container = doc.querySelector("#filter-container");
+  let widget = new CSSFilterEditorWidget(container, "none", cssIsValid);
+
+  info("Test add method");
+  const blur = widget.add("blur", "10.2px");
+  is(widget.getCssValue(), "blur(10.2px)",
+     "Should add filters");
+
+  const url = widget.add("url", "test.svg");
+  is(widget.getCssValue(), "blur(10.2px) url(test.svg)",
+     "Should add filters in order");
+
+  info("Test updateValueAt method");
+  widget.updateValueAt(url, "test2.svg");
+  widget.updateValueAt(blur, 5);
+  is(widget.getCssValue(), "blur(5px) url(test2.svg)",
+     "Should update values correctly");
+
+  info("Test getValueAt method");
+  is(widget.getValueAt(blur), "5px",
+     "Should return value + unit");
+  is(widget.getValueAt(url), "test2.svg",
+     "Should return value for string-type filters");
+
+  info("Test removeAt method");
+  widget.removeAt(url);
+  is(widget.getCssValue(), "blur(5px)",
+     "Should remove the specified filter");
+
+  info("Test add method applying filter range to value");
+  const grayscale = widget.add("grayscale", GRAYSCALE_MAX + 1);
+  is(widget.getValueAt(grayscale), `${GRAYSCALE_MAX}%`,
+     "Shouldn't allow values higher than max");
+
+  const invert = widget.add("invert", INVERT_MIN - 1);
+  is(widget.getValueAt(invert), `${INVERT_MIN}%`,
+     "Shouldn't allow values less than INVERT_MIN");
+
+  info("Test updateValueAt method applying filter range to value");
+  widget.updateValueAt(grayscale, GRAYSCALE_MAX + 1);
+  is(widget.getValueAt(grayscale), `${GRAYSCALE_MAX}%`,
+     "Shouldn't allow values higher than max");
+
+  widget.updateValueAt(invert, INVERT_MIN - 1);
+  is(widget.getValueAt(invert), `${INVERT_MIN}%`,
+     "Shouldn't allow values less than INVERT_MIN");
+});