third_party/web_platform_tests/selection/getSelection.html - cobalt - Git at Google

 <!doctype html>
 <title>getSelection() tests</title>
 <div id=log></div>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script>
 "use strict";

 // TODO: Figure out more places where defaultView is or is not guaranteed to be
 // null, and test whether getSelection() is null.
 //
 // TODO: Figure out a good way to test display: none iframes.

 test(function() {
     // Sanity checks like this are to flag known browser bugs with clearer
     // error messages, instead of throwing inscrutable exceptions.
     assert_true("Selection" in window,
         "Sanity check: window must have Selection property");

     assert_true(window.getSelection() instanceof Selection);
 }, "window.getSelection() instanceof Selection");

 test(function() {
     assert_equals(window.getSelection(), window.getSelection());
 }, "window.getSelection() === window.getSelection()");

 test(function() {
     assert_true("Selection" in window,
         "Sanity check: window must have Selection property");
     // This sanity check (which occurs a number of times below, too) is because
     // document.getSelection() is supposed to return null if defaultView is
     // null, so we need to figure out whether defaultView is null or not before
     // we can make correct assertions about getSelection().
     assert_not_equals(document.defaultView, null,
         "Sanity check: document.defaultView must not be null");

     assert_equals(typeof document.getSelection(), "object",
         "document.getSelection() must be an object");
     assert_true(document.getSelection() instanceof Selection);
 }, "document.getSelection() instanceof Selection");

 test(function() {
     assert_not_equals(document.defaultView, null,
         "Sanity check: document.defaultView must not be null");
     assert_equals(document.getSelection(), document.getSelection());
 }, "document.getSelection() === document.getSelection()");

 test(function() {
     assert_not_equals(document.defaultView, null,
         "Sanity check: document.defaultView must not be null");
     assert_equals(window.getSelection(), document.getSelection());
 }, "window.getSelection() === document.getSelection()");

 // "Each selection is associated with a single range, which may be null and is
 // initially null."
 //
 // "The rangeCount attribute must return 0 if the context object's range is
 // null, otherwise 1."
 test(function() {
     assert_equals(window.getSelection().rangeCount, 0,
         "window.getSelection().rangeCount must initially be 0");
     assert_equals(typeof document.getSelection(), "object",
         "Sanity check: document.getSelection() must be an object");
     assert_equals(document.getSelection().rangeCount, 0,
         "document.getSelection().rangeCount must initially be 0");
 }, "Selection's range must initially be null");

 test(function() {
     var doc = document.implementation.createHTMLDocument("");
     assert_equals(doc.defaultView, null,
         "Sanity check: defaultView of created HTML document must be null");
     assert_equals(doc.getSelection(), null);
 }, "getSelection() on HTML document with null defaultView must be null");

 test(function() {
     var xmlDoc = document.implementation.createDocument(null, "", null);

     assert_true("getSelection" in xmlDoc, "XML document must have getSelection()");

     assert_equals(xmlDoc.defaultView, null,
         "Sanity check: defaultView of created XML document must be null");
     assert_equals(xmlDoc.getSelection(), null);
 }, "getSelection() on XML document with null defaultView must be null");


 // Run a bunch of iframe tests, once immediately after the iframe is appended
 // to the document and once onload.  This makes a difference, because browsers
 // differ (at the time of this writing) in whether they load about:blank in
 // iframes synchronously or not.  Per the HTML spec, there must be a browsing
 // context associated with the iframe as soon as it's appended to the document,
 // so there should be a selection too.
 var iframe = document.createElement("iframe");
 add_completion_callback(function() {
     document.body.removeChild(iframe);
 });

 var testDescs = [];
 var testFuncs = [];
 testDescs.push("window.getSelection() instanceof Selection in an iframe");
 testFuncs.push(function() {
     assert_true("Selection" in iframe.contentWindow,
         "Sanity check: window must have Selection property");
     assert_not_equals(iframe.contentWindow.document.defaultView, null,
         "Sanity check: document.defaultView must not be null");
     assert_not_equals(iframe.contentWindow.getSelection(), null,
         "window.getSelection() must not be null");
     assert_true(iframe.contentWindow.getSelection() instanceof iframe.contentWindow.Selection);
 });

 testDescs.push("document.getSelection() instanceof Selection in an iframe");
 testFuncs.push(function() {
     assert_true("Selection" in iframe.contentWindow,
         "Sanity check: window must have Selection property");
     assert_not_equals(iframe.contentDocument.defaultView, null,
         "Sanity check: document.defaultView must not be null");
     assert_not_equals(iframe.contentDocument.getSelection(), null,
         "document.getSelection() must not be null");
     assert_equals(typeof iframe.contentDocument.getSelection(), "object",
         "document.getSelection() must be an object");
     assert_true(iframe.contentDocument.getSelection() instanceof iframe.contentWindow.Selection);
 });

 testDescs.push("window.getSelection() === document.getSelection() in an iframe");
 testFuncs.push(function() {
     assert_not_equals(iframe.contentDocument.defaultView, null,
         "Sanity check: document.defaultView must not be null");
     assert_equals(iframe.contentWindow.getSelection(), iframe.contentDocument.getSelection());
 });

 testDescs.push("getSelection() inside and outside iframe must return different objects");
 testFuncs.push(function() {
     assert_not_equals(iframe.contentWindow.getSelection(), getSelection());
 });

 testDescs.push("getSelection() on HTML document with null defaultView must be null inside an iframe");
 testFuncs.push(function() {
     var doc = iframe.contentDocument.implementation.createHTMLDocument("");
     assert_equals(doc.defaultView, null,
         "Sanity check: defaultView of created HTML document must be null");
     assert_equals(doc.getSelection(), null);
 });

 var asyncTests = [];
 testDescs.forEach(function(desc) {
     asyncTests.push(async_test(desc + " onload"));
 });

 iframe.onload = function() {
     asyncTests.forEach(function(t, i) {
         t.step(testFuncs[i]);
         t.done();
     });
 };

 document.body.appendChild(iframe);

 testDescs.forEach(function(desc, i) {
     test(testFuncs[i], desc + " immediately after appendChild");
 });
 </script>
	<!doctype html>
	<title>getSelection() tests</title>
	<div id=log></div>
	<script src=/resources/testharness.js></script>
	<script src=/resources/testharnessreport.js></script>
	<script>
	"use strict";

	// TODO: Figure out more places where defaultView is or is not guaranteed to be
	// null, and test whether getSelection() is null.
	//
	// TODO: Figure out a good way to test display: none iframes.

	test(function() {
	// Sanity checks like this are to flag known browser bugs with clearer
	// error messages, instead of throwing inscrutable exceptions.
	assert_true("Selection" in window,
	"Sanity check: window must have Selection property");

	assert_true(window.getSelection() instanceof Selection);
	}, "window.getSelection() instanceof Selection");

	test(function() {
	assert_equals(window.getSelection(), window.getSelection());
	}, "window.getSelection() === window.getSelection()");

	test(function() {
	assert_true("Selection" in window,
	"Sanity check: window must have Selection property");
	// This sanity check (which occurs a number of times below, too) is because
	// document.getSelection() is supposed to return null if defaultView is
	// null, so we need to figure out whether defaultView is null or not before
	// we can make correct assertions about getSelection().
	assert_not_equals(document.defaultView, null,
	"Sanity check: document.defaultView must not be null");

	assert_equals(typeof document.getSelection(), "object",
	"document.getSelection() must be an object");
	assert_true(document.getSelection() instanceof Selection);
	}, "document.getSelection() instanceof Selection");

	test(function() {
	assert_not_equals(document.defaultView, null,
	"Sanity check: document.defaultView must not be null");
	assert_equals(document.getSelection(), document.getSelection());
	}, "document.getSelection() === document.getSelection()");

	test(function() {
	assert_not_equals(document.defaultView, null,
	"Sanity check: document.defaultView must not be null");
	assert_equals(window.getSelection(), document.getSelection());
	}, "window.getSelection() === document.getSelection()");

	// "Each selection is associated with a single range, which may be null and is
	// initially null."
	//
	// "The rangeCount attribute must return 0 if the context object's range is
	// null, otherwise 1."
	test(function() {
	assert_equals(window.getSelection().rangeCount, 0,
	"window.getSelection().rangeCount must initially be 0");
	assert_equals(typeof document.getSelection(), "object",
	"Sanity check: document.getSelection() must be an object");
	assert_equals(document.getSelection().rangeCount, 0,
	"document.getSelection().rangeCount must initially be 0");
	}, "Selection's range must initially be null");

	test(function() {
	var doc = document.implementation.createHTMLDocument("");
	assert_equals(doc.defaultView, null,
	"Sanity check: defaultView of created HTML document must be null");
	assert_equals(doc.getSelection(), null);
	}, "getSelection() on HTML document with null defaultView must be null");

	test(function() {
	var xmlDoc = document.implementation.createDocument(null, "", null);

	assert_true("getSelection" in xmlDoc, "XML document must have getSelection()");

	assert_equals(xmlDoc.defaultView, null,
	"Sanity check: defaultView of created XML document must be null");
	assert_equals(xmlDoc.getSelection(), null);
	}, "getSelection() on XML document with null defaultView must be null");


	// Run a bunch of iframe tests, once immediately after the iframe is appended
	// to the document and once onload. This makes a difference, because browsers
	// differ (at the time of this writing) in whether they load about:blank in
	// iframes synchronously or not. Per the HTML spec, there must be a browsing
	// context associated with the iframe as soon as it's appended to the document,
	// so there should be a selection too.
	var iframe = document.createElement("iframe");
	add_completion_callback(function() {
	document.body.removeChild(iframe);
	});

	var testDescs = [];
	var testFuncs = [];
	testDescs.push("window.getSelection() instanceof Selection in an iframe");
	testFuncs.push(function() {
	assert_true("Selection" in iframe.contentWindow,
	"Sanity check: window must have Selection property");
	assert_not_equals(iframe.contentWindow.document.defaultView, null,
	"Sanity check: document.defaultView must not be null");
	assert_not_equals(iframe.contentWindow.getSelection(), null,
	"window.getSelection() must not be null");
	assert_true(iframe.contentWindow.getSelection() instanceof iframe.contentWindow.Selection);
	});

	testDescs.push("document.getSelection() instanceof Selection in an iframe");
	testFuncs.push(function() {
	assert_true("Selection" in iframe.contentWindow,
	"Sanity check: window must have Selection property");
	assert_not_equals(iframe.contentDocument.defaultView, null,
	"Sanity check: document.defaultView must not be null");
	assert_not_equals(iframe.contentDocument.getSelection(), null,
	"document.getSelection() must not be null");
	assert_equals(typeof iframe.contentDocument.getSelection(), "object",
	"document.getSelection() must be an object");
	assert_true(iframe.contentDocument.getSelection() instanceof iframe.contentWindow.Selection);
	});

	testDescs.push("window.getSelection() === document.getSelection() in an iframe");
	testFuncs.push(function() {
	assert_not_equals(iframe.contentDocument.defaultView, null,
	"Sanity check: document.defaultView must not be null");
	assert_equals(iframe.contentWindow.getSelection(), iframe.contentDocument.getSelection());
	});

	testDescs.push("getSelection() inside and outside iframe must return different objects");
	testFuncs.push(function() {
	assert_not_equals(iframe.contentWindow.getSelection(), getSelection());
	});

	testDescs.push("getSelection() on HTML document with null defaultView must be null inside an iframe");
	testFuncs.push(function() {
	var doc = iframe.contentDocument.implementation.createHTMLDocument("");
	assert_equals(doc.defaultView, null,
	"Sanity check: defaultView of created HTML document must be null");
	assert_equals(doc.getSelection(), null);
	});

	var asyncTests = [];
	testDescs.forEach(function(desc) {
	asyncTests.push(async_test(desc + " onload"));
	});

	iframe.onload = function() {
	asyncTests.forEach(function(t, i) {
	t.step(testFuncs[i]);
	t.done();
	});
	};

	document.body.appendChild(iframe);

	testDescs.forEach(function(desc, i) {
	test(testFuncs[i], desc + " immediately after appendChild");
	});
	</script>