1 files changed, 106 insertions, 0 deletions
diff --git a/devtools/client/shared/test/xpcshell/test_parseSingleValue.js b/devtools/client/shared/test/xpcshell/test_parseSingleValue.js
new file mode 100644
index 0000000000..4617c6de2c
--- /dev/null
+++ b/devtools/client/shared/test/xpcshell/test_parseSingleValue.js
@@ -0,0 +1,106 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const {
+  parseSingleValue,
+} = require("resource://devtools/shared/css/parsing-utils.js");
+const {
+  isCssPropertyKnown,
+} = require("resource://devtools/server/actors/css-properties.js");
+
+const TEST_DATA = [
+  { input: null, throws: true },
+  { input: undefined, throws: true },
+  { input: "", expected: { value: "", priority: "" } },
+  { input: "  \t \t \n\n  ", expected: { value: "", priority: "" } },
+  { input: "blue", expected: { value: "blue", priority: "" } },
+  {
+    input: "blue !important",
+    expected: { value: "blue", priority: "important" },
+  },
+  {
+    input: "blue!important",
+    expected: { value: "blue", priority: "important" },
+  },
+  {
+    input: "blue ! important",
+    expected: { value: "blue", priority: "important" },
+  },
+  {
+    input: "blue !  important",
+    expected: { value: "blue", priority: "important" },
+  },
+  { input: "blue !", expected: { value: "blue !", priority: "" } },
+  {
+    input: "blue !mportant",
+    expected: { value: "blue !mportant", priority: "" },
+  },
+  {
+    input: "  blue   !important ",
+    expected: { value: "blue", priority: "important" },
+  },
+  {
+    input: 'url("http://url.com/whyWouldYouDoThat!important.png") !important',
+    expected: {
+      value: 'url("http://url.com/whyWouldYouDoThat!important.png")',
+      priority: "important",
+    },
+  },
+  {
+    input: 'url("http://url.com/whyWouldYouDoThat!important.png")',
+    expected: {
+      value: 'url("http://url.com/whyWouldYouDoThat!important.png")',
+      priority: "",
+    },
+  },
+  {
+    input: '"content!important" !important',
+    expected: {
+      value: '"content!important"',
+      priority: "important",
+    },
+  },
+  {
+    input: '"content!important"',
+    expected: {
+      value: '"content!important"',
+      priority: "",
+    },
+  },
+  {
+    input: '"all the \\"\'\\\\ special characters"',
+    expected: {
+      value: '"all the \\"\'\\\\ special characters"',
+      priority: "",
+    },
+  },
+];
+
+function run_test() {
+  for (const test of TEST_DATA) {
+    info("Test input value " + test.input);
+    try {
+      const output = parseSingleValue(isCssPropertyKnown, test.input);
+      assertOutput(output, test.expected);
+    } catch (e) {
+      info(
+        "parseSingleValue threw an exception with the given input " + "value"
+      );
+      if (test.throws) {
+        info("Exception expected");
+        Assert.ok(true);
+      } else {
+        info("Exception unexpected\n" + e);
+        Assert.ok(false);
+      }
+    }
+  }
+}
+
+function assertOutput(actual, expected) {
+  info("Check that the output has the expected value and priority");
+  Assert.equal(expected.value, actual.value);
+  Assert.equal(expected.priority, actual.priority);
+}