<!DOCTYPE html>
<html>
<head>
<script src="../../http/tests/inspector/resources/inspector-test.js"></script>
<script>
function test()
{
    let documentNode;

    function nodeForSelector(selector, callback) {
        WI.domTreeManager.querySelector(documentNode.id, selector, (nodeId) => {
            callback(WI.domTreeManager.nodeForId(nodeId));
        });
    }

    let suite = InspectorTest.createAsyncSuite("WI.xpath");

    suite.addTestCase({
        name: "WI.xpath.TopLevelNode",
        description: "Top level nodes like html, body, and head are unique.",
        test(resolve, reject) {
            nodeForSelector("html", (node) => {
                InspectorTest.expectEqual(WI.xpath(node), "/html", "HTML element should have simple XPath '/html'.");
            });
            nodeForSelector("html > body", (node) => {
                InspectorTest.expectEqual(WI.xpath(node), "/html/body", "BODY element should have simple XPath '/html/body'.");
            });
            nodeForSelector("html > head", (node) => {
                InspectorTest.expectEqual(WI.xpath(node), "/html/head", "HEAD element should have simple XPath '/html/head'.");
                resolve();
            });
        }
    });

    suite.addTestCase({
        name: "WI.xpath.ElementWithID",
        description: "Element with ID is unique (#id). Path does not need to go past it.",
        test(resolve, reject) {
            nodeForSelector("#id-test", (node) => {
                InspectorTest.expectEqual(WI.xpath(node), "//*[@id=\"id-test\"]", "Element with id should have a single path component '//*[@id=\"id-test\"]'.");
            });
            nodeForSelector("#id-test > div", (node) => {
                InspectorTest.expectEqual(WI.xpath(node), "//*[@id=\"id-test\"]/div", "Element inside element with id should have path from id.");
                resolve();
            });
        }
    });

    suite.addTestCase({
        name: "WI.xpath.UniqueTagName",
        description: "Elements with unique tag name do not need nth-child.",
        test(resolve, reject) {
            nodeForSelector("#unique-tag-test > span", (node) => {
                InspectorTest.expectEqual(WI.xpath(node), "//*[@id=\"unique-tag-test\"]/span", "Elements with unique tag name should not need XPath index.");
                resolve();
            });
        }
    });

    suite.addTestCase({
        name: "WI.xpath.NonUniqueTagName",
        description: "Elements with non-unique tag name need index.",
        test(resolve, reject) {
            nodeForSelector("#non-unique-tag-test > span ~ span", (node) => {
                InspectorTest.expectEqual(WI.xpath(node), "//*[@id=\"non-unique-tag-test\"]/span[2]", "Elements with non-unique tag name should need XPath index.");
                resolve();
            });
        }
    });

    suite.addTestCase({
        name: "WI.xpath.DeepPath",
        description: "Tests for element with complex path.",
        test(resolve, reject) {
            nodeForSelector("small", (node) => {
                InspectorTest.log(WI.xpath(node));
                InspectorTest.expectEqual(WI.xpath(node), "/html/body/div/div[7]/ul/li/div[3]/ul/li[2]/a/small", "Should be able to get XPath for deep elements.");
                resolve();
            });
        }
    });

    suite.addTestCase({
        name: "WI.xpath.TextAndCommentNode",
        description: "Tests for non-Element nodes.",
        test(resolve, reject) {
            nodeForSelector("#non-element-test > p > br", (node) => {
                let paragraphChildren = node.parentNode.children;
                let lastTextChild = paragraphChildren[paragraphChildren.length - 1];
                let lastCommentChild = paragraphChildren[paragraphChildren.length - 2];
                InspectorTest.expectEqual(WI.xpath(lastTextChild), "//*[@id=\"non-element-test\"]/p/text()[3]", "Should be able to get XPath for TEXT_NODE.");
                InspectorTest.expectEqual(WI.xpath(lastCommentChild), "//*[@id=\"non-element-test\"]/p/comment()", "Should be able to get XPath for COMMENT_NODE.");
                resolve();
            });
        }
    });

    // FIXME: Write tests for nodes inside a Shadow DOM Tree.
    // FIXME: Write test for CDATA.

    WI.domTreeManager.requestDocument((node) => {
        documentNode = node;
        suite.runTestCasesAndFinish();
    });
}
</script>
</head>
<body onload="runTest()">
<p>Test for WI.xpath.</p>
<!-- If display:none pseudo elements are not created. -->
<div style="visibility:hidden">
    <div id="id-test">
        <div></div>
    </div>
    <div id="unique-tag-test">
        <div></div>
        <span></span>
        <div></div>
    </div>
    <div id="non-unique-tag-test">
        <div></div>
        <span></span>
        <span></span>
        <div></div>
    </div>
    <div id="unique-class-test">
        <div class="alpha"></div>
        <div class="alpha beta"></div>
        <div class="alpha"></div>
    </div>
    <div id="non-unique-class-test">
        <div class="alpha"></div>
        <div class="alpha"></div>
        <div class="alpha"></div>
    </div>
    <div id="unique-tag-and-class-test">
        <div class="alpha"></div>
    </div>
    <div class="deep-path-test">
        <ul>
            <li>
                <h1></h1>
                <div></div>
                <div></div>
                <div>
                    <ul class="list">
                        <li></li>
                        <li class="active"><a href="#"><small></small></a></li>
                        <li></li>
                    </ul>
                </div>
            </li>
        </ul>
    </div>
    <div id="non-element-test">
        <p>
            Some leading text
            <br>
            Some trailing text
            <!-- Comment -->
            Some final text
        </p>
    </div>
</div>
</body>
</html>