1 files changed, 202 insertions, 0 deletions
diff --git a/devtools/client/shared/test/xpcshell/test_parsePseudoClassesAndAttributes.js b/devtools/client/shared/test/xpcshell/test_parsePseudoClassesAndAttributes.js
new file mode 100644
index 0000000000..6aa2185c7d
--- /dev/null
+++ b/devtools/client/shared/test/xpcshell/test_parsePseudoClassesAndAttributes.js
@@ -0,0 +1,202 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const {
+  parsePseudoClassesAndAttributes,
+  SELECTOR_ATTRIBUTE,
+  SELECTOR_ELEMENT,
+  SELECTOR_PSEUDO_CLASS,
+} = require("resource://devtools/shared/css/parsing-utils.js");
+
+const TEST_DATA = [
+  // Test that a null input throws an exception
+  {
+    input: null,
+    throws: true,
+  },
+  // Test that a undefined input throws an exception
+  {
+    input: undefined,
+    throws: true,
+  },
+  {
+    input: ":root",
+    expected: [{ value: ":root", type: SELECTOR_PSEUDO_CLASS }],
+  },
+  {
+    input: ".testclass",
+    expected: [{ value: ".testclass", type: SELECTOR_ELEMENT }],
+  },
+  {
+    input: "div p",
+    expected: [{ value: "div p", type: SELECTOR_ELEMENT }],
+  },
+  {
+    input: "div > p",
+    expected: [{ value: "div > p", type: SELECTOR_ELEMENT }],
+  },
+  {
+    input: "a[hidden]",
+    expected: [
+      { value: "a", type: SELECTOR_ELEMENT },
+      { value: "[hidden]", type: SELECTOR_ATTRIBUTE },
+    ],
+  },
+  {
+    input: "a[hidden=true]",
+    expected: [
+      { value: "a", type: SELECTOR_ELEMENT },
+      { value: "[hidden=true]", type: SELECTOR_ATTRIBUTE },
+    ],
+  },
+  {
+    input: "a[hidden=true] p:hover",
+    expected: [
+      { value: "a", type: SELECTOR_ELEMENT },
+      { value: "[hidden=true]", type: SELECTOR_ATTRIBUTE },
+      { value: " p", type: SELECTOR_ELEMENT },
+      { value: ":hover", type: SELECTOR_PSEUDO_CLASS },
+    ],
+  },
+  {
+    input: 'a[checked="true"]',
+    expected: [
+      { value: "a", type: SELECTOR_ELEMENT },
+      { value: '[checked="true"]', type: SELECTOR_ATTRIBUTE },
+    ],
+  },
+  {
+    input: "a[title~=test]",
+    expected: [
+      { value: "a", type: SELECTOR_ELEMENT },
+      { value: "[title~=test]", type: SELECTOR_ATTRIBUTE },
+    ],
+  },
+  {
+    input: 'h1[hidden="true"][title^="Important"]',
+    expected: [
+      { value: "h1", type: SELECTOR_ELEMENT },
+      { value: '[hidden="true"]', type: SELECTOR_ATTRIBUTE },
+      { value: '[title^="Important"]', type: SELECTOR_ATTRIBUTE },
+    ],
+  },
+  {
+    input: "p:hover",
+    expected: [
+      { value: "p", type: SELECTOR_ELEMENT },
+      { value: ":hover", type: SELECTOR_PSEUDO_CLASS },
+    ],
+  },
+  {
+    input: "p + .testclass:hover",
+    expected: [
+      { value: "p + .testclass", type: SELECTOR_ELEMENT },
+      { value: ":hover", type: SELECTOR_PSEUDO_CLASS },
+    ],
+  },
+  {
+    input: "p::before",
+    expected: [
+      { value: "p", type: SELECTOR_ELEMENT },
+      { value: "::before", type: SELECTOR_PSEUDO_CLASS },
+    ],
+  },
+  {
+    input: "p:nth-child(2)",
+    expected: [
+      { value: "p", type: SELECTOR_ELEMENT },
+      { value: ":nth-child(2)", type: SELECTOR_PSEUDO_CLASS },
+    ],
+  },
+  {
+    input: 'p:not([title="test"]) .testclass',
+    expected: [
+      { value: "p", type: SELECTOR_ELEMENT },
+      { value: ':not([title="test"])', type: SELECTOR_PSEUDO_CLASS },
+      { value: " .testclass", type: SELECTOR_ELEMENT },
+    ],
+  },
+  {
+    input: "a\\:hover",
+    expected: [{ value: "a\\:hover", type: SELECTOR_ELEMENT }],
+  },
+  {
+    input: ":not(:lang(it))",
+    expected: [{ value: ":not(:lang(it))", type: SELECTOR_PSEUDO_CLASS }],
+  },
+  {
+    input: "p:not(:lang(it))",
+    expected: [
+      { value: "p", type: SELECTOR_ELEMENT },
+      { value: ":not(:lang(it))", type: SELECTOR_PSEUDO_CLASS },
+    ],
+  },
+  {
+    input: "p:not(p:lang(it))",
+    expected: [
+      { value: "p", type: SELECTOR_ELEMENT },
+      { value: ":not(p:lang(it))", type: SELECTOR_PSEUDO_CLASS },
+    ],
+  },
+  {
+    input: ":not(:lang(it)",
+    expected: [{ value: ":not(:lang(it)", type: SELECTOR_ELEMENT }],
+  },
+  {
+    input: ":not(:lang(it)))",
+    expected: [
+      { value: ":not(:lang(it))", type: SELECTOR_PSEUDO_CLASS },
+      { value: ")", type: SELECTOR_ELEMENT },
+    ],
+  },
+];
+
+function run_test() {
+  for (const test of TEST_DATA) {
+    dump("Test input string " + test.input + "\n");
+    let output;
+
+    try {
+      output = parsePseudoClassesAndAttributes(test.input);
+    } catch (e) {
+      dump(
+        "parsePseudoClassesAndAttributes threw an exception with the " +
+          "given input string\n"
+      );
+      if (test.throws) {
+        ok(true, "Exception expected");
+      } else {
+        dump();
+        ok(false, "Exception unexpected\n" + e);
+      }
+    }
+
+    if (output) {
+      assertOutput(output, test.expected);
+    }
+  }
+}
+
+function assertOutput(actual, expected) {
+  if (actual.length === expected.length) {
+    for (let i = 0; i < expected.length; i++) {
+      dump("Check that the output item has the expected value and type\n");
+      ok(!!actual[i]);
+      equal(expected[i].value, actual[i].value);
+      equal(expected[i].type, actual[i].type);
+    }
+  } else {
+    for (const prop of actual) {
+      dump(
+        "Actual output contained: {value: " +
+          prop.value +
+          ", type: " +
+          prop.type +
+          "}\n"
+      );
+    }
+    equal(actual.length, expected.length);
+  }
+}