blob: 5209762660bb4650e09fc390da3e7575a9af3e5c [file] [log] [blame]
ReflectionTests = {};
ReflectionTests.start = new Date().getTime();
/**
* Resolve the given URL to an absolute URL, relative to the current document's
* address. There's no API that I know of that exposes this directly, so we
* actually just create an <a> element, set its href, and stitch together the
* various properties. Seems to work. We don't try to reimplement the
* algorithm here, because we're not concerned with its correctness -- we're
* only testing HTML reflection, not Web Addresses.
*
* Return the input if the URL couldn't be resolved, per the spec for
* reflected URL attributes.
*
* It seems like IE9 doesn't implement URL decomposition attributes correctly
* for <a>, which causes all these tests to fail. Ideally I'd do this in some
* other way, but the failure does stem from an incorrect implementation of
* HTML, so I'll leave it alone for now.
*
* TODO: This relies on reflection to test reflection, so it could mask bugs.
* Either get a JS implementation of the "resolve a URL" algorithm, or just
* specify expected values manually here. It shouldn't be too hard to write
* special cases for all the values we test.
*/
ReflectionTests.resolveUrl = function(url) {
url = String(url);
var el = document.createElement("a");
el.href = url;
var ret = el.protocol + "//" + el.host + el.pathname + el.search + el.hash;
if (ret == "//") {
return url;
} else {
return ret;
}
};
/**
* The "rules for parsing non-negative integers" from the HTML spec. They're
* mostly used for reflection, so here seems like as good a place to test them
* as any. Returns false on error.
*/
ReflectionTests.parseNonneg = function(input) {
var value = this.parseInt(input);
if (value === false || value < 0) {
return false;
}
return value;
};
/**
* The "rules for parsing integers" from the HTML spec. Returns false on
* error.
*/
ReflectionTests.parseInt = function(input) {
var position = 0;
var sign = 1;
// Skip whitespace
while (input.length > position && /^[ \t\n\f\r]$/.test(input[position])) {
position++;
}
if (position >= input.length) {
return false;
}
if (input[position] == "-") {
sign = -1;
position++;
} else if (input[position] == "+") {
position++;
}
if (position >= input.length) {
return false;
}
if (!/^[0-9]$/.test(input[position])) {
return false;
}
var value = 0;
while (input.length > position && /^[0-9]$/.test(input[position])) {
value *= 10;
// Don't use parseInt even for single-digit strings . . .
value += input.charCodeAt(position) - "0".charCodeAt(0);
position++;
}
if (value === 0) {
return 0;
}
return sign * value;
};
// Used in initializing typeMap
var binaryString = "\x00\x01\x02\x03\x04\x05\x06\x07 "
+ "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f "
+ "\x10\x11\x12\x13\x14\x15\x16\x17 "
+ "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f ";
var maxInt = 2147483647;
var minInt = -2147483648;
var maxUnsigned = 4294967295;
/**
* Array containing the tests and other information for each type of reflected
* attribute. Meaning of keys:
*
* "jsType": What typeof idlObj[idlName] is supposed to be.
* "defaultVal": The default value to be returned if the attribute is not
* present and no default is specifically set for this attribute.
* "domTests": What values to test with setAttribute().
* "domExpected": What values to expect with IDL get after setAttribute().
* Defaults to the same as domTests.
* "idlTests": What values to test with IDL set. Defaults to domTests.
* "idlDomExpected": What to expect from getAttribute() after IDL set.
* Defaults to idlTests.
* "idlIdlExpected": What to expect from IDL get after IDL set. Defaults to
* idlDomExpected.
*
* Note that all tests/expected values are only baselines, and can be expanded
* with additional tests hardcoded into the function for particular types if
* necessary. For example, a special codepath is used for enums, and for
* IDL setters which throw an exception. null means "defaultVal" is the
* expected value. Expected DOM values are cast to strings by adding "".
*
* TODO: Test strings that aren't valid UTF-16. Desired behavior is not clear
* here at the time of writing, see
* http://www.w3.org/Bugs/Public/show_bug.cgi?id=12100
*
* TODO: Test deleting an IDL attribute, and maybe doing other fun stuff to it.
*
* TODO: Test IDL sets of integer types to out-of-range or other weird values.
* WebIDL says to wrap, but I'm not sure offhand if that's what we want.
*
* TODO: tokenlist, settable tokenlist, limited
*/
ReflectionTests.typeMap = {
/**
* "If a reflecting IDL attribute is a DOMString but doesn't fall into any
* of the above categories, then the getting and setting must be done in a
* transparent, case-preserving manner."
*
* The data object passed to reflects() can contain an optional key
* treatNullAsEmptyString, whose value is ignored. If it does contain the
* key, null will be cast to "" instead of "null", per WebIDL
* [TreatNullAs=EmptyString].
*/
"string": {
"jsType": "string",
"defaultVal": "",
"domTests": ["", " " + binaryString + " foo ", undefined, 7, 1.5, "5%", "+100", ".5", true,
false, {"test": 6}, NaN, +Infinity, -Infinity, "\0", null,
{"toString":function(){return "test-toString";}},
{"valueOf":function(){return "test-valueOf";}, toString:null}
]
},
/**
* "If a reflecting IDL attribute is a USVString attribute whose content
* attribute is defined to contain a URL, then on getting, if the content
* attribute is absent, the IDL attribute must return the empty string.
* Otherwise, the IDL attribute must parse the value of the content
* attribute relative to the element's node document and if that is
* successful, return the resulting URL string. If parsing fails, then the
* value of the content attribute must be returned instead, converted to a
* USVString. On setting, the content attribute must be set to the specified
* new value."
*
* Also HTMLHyperLinkElementUtils href, used by a.href and area.href
*/
"url": {
"jsType": "string",
"defaultVal": "",
"domTests": ["", " foo ", "http://site.example/",
"//site.example/path???@#l", binaryString, undefined, 7, 1.5, "5%", "+100", ".5", true,
false, {"test": 6}, NaN, +Infinity, -Infinity, "\0", null,
{"toString":function(){return "test-toString";}},
{"valueOf":function(){return "test-valueOf";}, toString:null}],
"domExpected": ReflectionTests.resolveUrl,
"idlIdlExpected": ReflectionTests.resolveUrl
},
/**
* "If a reflecting IDL attribute is a DOMString whose content attribute is
* an enumerated attribute, and the IDL attribute is limited to only known
* values, then, on getting, the IDL attribute must return the conforming
* value associated with the state the attribute is in (in its canonical
* case), or the empty string if the attribute is in a state that has no
* associated keyword value; and on setting, if the new value is an ASCII
* case-insensitive match for one of the keywords given for that attribute,
* then the content attribute must be set to the conforming value
* associated with the state that the attribute would be in if set to the
* given new value, otherwise, if the new value is the empty string, then
* the content attribute must be removed, otherwise, the content attribute
* must be set to the given new value."
*
* "Some attributes are defined as taking one of a finite set of keywords.
* Such attributes are called enumerated attributes. The keywords are each
* defined to map to a particular state (several keywords might map to the
* same state, in which case some of the keywords are synonyms of each
* other; additionally, some of the keywords can be said to be
* non-conforming, and are only in the specification for historical
* reasons). In addition, two default states can be given. The first is the
* invalid value default, the second is the missing value default.
*
* . . .
*
* When the attribute is specified, if its value is an ASCII
* case-insensitive match for one of the given keywords then that keyword's
* state is the state that the attribute represents. If the attribute value
* matches none of the given keywords, but the attribute has an invalid
* value default, then the attribute represents that state. Otherwise, if
* the attribute value matches none of the keywords but there is a missing
* value default state defined, then that is the state represented by the
* attribute. Otherwise, there is no default, and invalid values must be
* ignored.
*
* When the attribute is not specified, if there is a missing value default
* state defined, then that is the state represented by the (missing)
* attribute. Otherwise, the absence of the attribute means that there is
* no state represented."
*
* This is only used for enums that are limited to known values, not other
* enums (those are treated as generic strings by the spec). The data
* object passed to reflects() can contain these keys:
*
* "defaultVal": missing value default (defaults to "")
* "invalidVal": invalid value default (defaults to defaultVal)
* "keywords": array of keywords as given by the spec (required)
* "nonCanon": dictionary mapping non-canonical values to their
* canonical equivalents (defaults to {})
* "isNullable": Indicates if attribute is nullable (defaults to false)
*
* Tests are mostly hardcoded into reflects(), since they depend on the
* keywords. All expected values are computed in reflects() using a helper
* function.
*/
"enum": {
"jsType": "string",
"defaultVal": "",
"domTests": ["", " " + binaryString + " foo ", undefined, 7, 1.5, "5%", "+100", ".5", true,
false, {"test": 6}, NaN, +Infinity, -Infinity, "\0", null,
{"toString":function(){return "test-toString";}},
{"valueOf":function(){return "test-valueOf";}, toString:null}]
},
/**
* "If a reflecting IDL attribute is a boolean attribute, then on getting
* the IDL attribute must return true if the content attribute is set, and
* false if it is absent. On setting, the content attribute must be removed
* if the IDL attribute is set to false, and must be set to the empty
* string if the IDL attribute is set to true. (This corresponds to the
* rules for boolean content attributes.)"
*/
"boolean": {
"jsType": "boolean",
"defaultVal": false,
"domTests": ["", " foo ", undefined, null, 7, 1.5, "5%", "+100", ".5", true, false,
{"test": 6}, NaN, +Infinity, -Infinity, "\0",
{"toString":function(){return "test-toString";}},
{"valueOf":function(){return "test-valueOf";}, toString:null}],
"domExpected": function(val) {
return true;
}
},
/**
* "If a reflecting IDL attribute is a signed integer type (long) then, on
* getting, the content attribute must be parsed according to the rules for
* parsing signed integers, and if that is successful, and the value is in
* the range of the IDL attribute's type, the resulting value must be
* returned. If, on the other hand, it fails or returns an out of range
* value, or if the attribute is absent, then the default value must be
* returned instead, or 0 if there is no default value. On setting, the
* given value must be converted to the shortest possible string
* representing the number as a valid integer and then that string must be
* used as the new content attribute value."
*/
"long": {
"jsType": "number",
"defaultVal": 0,
"domTests": [-36, -1, 0, 1, maxInt, minInt, maxInt + 1, minInt - 1,
maxUnsigned, maxUnsigned + 1, "", "-1", "-0", "0", "1",
" " + binaryString + " foo ",
// Test various different whitespace. Only 20, 9, A, C,
// and D are whitespace.
"\u00097", "\u000B7", "\u000C7", "\u00207", "\u00A07", "\uFEFF7",
"\u000A7", "\u000D7", "\u20287", "\u20297", "\u16807", "\u180E7",
"\u20007", "\u20017", "\u20027", "\u20037", "\u20047", "\u20057",
"\u20067", "\u20077", "\u20087", "\u20097", "\u200A7", "\u202F7",
"\u30007",
undefined, 1.5, "5%", "+100", ".5", true, false, {"test": 6}, NaN, +Infinity,
-Infinity, "\0",
{toString:function() {return 2;}, valueOf: null},
{valueOf:function() {return 3;}}],
"domExpected": function(val) {
var parsed = ReflectionTests.parseInt(String(val));
if (parsed === false || parsed > maxInt || parsed < minInt) {
return null;
}
return parsed;
},
"idlTests": [-36, -1, 0, 1, 2147483647, -2147483648],
"idlDomExpected": [-36, -1, 0, 1, 2147483647, -2147483648]
},
/**
* "If a reflecting IDL attribute is a signed integer type (long) that is
* limited to only non-negative numbers then, on getting, the content
* attribute must be parsed according to the rules for parsing non-negative
* integers, and if that is successful, and the value is in the range of
* the IDL attribute's type, the resulting value must be returned. If, on
* the other hand, it fails or returns an out of range value, or if the
* attribute is absent, the default value must be returned instead, or −1
* if there is no default value. On setting, if the value is negative, the
* user agent must fire an INDEX_SIZE_ERR exception. Otherwise, the given
* value must be converted to the shortest possible string representing the
* number as a valid non-negative integer and then that string must be used
* as the new content attribute value."
*/
"limited long": {
"jsType": "number",
"defaultVal": -1,
"domTests": [minInt - 1, minInt, -36, -1, -0, 0, 1, maxInt, maxInt + 1,
maxUnsigned, maxUnsigned + 1, "", "-1", "-0", "0", "1",
" " + binaryString + " foo ",
"\u00097", "\u000B7", "\u000C7", "\u00207", "\u00A07", "\uFEFF7",
"\u000A7", "\u000D7", "\u20287", "\u20297", "\u16807", "\u180E7",
"\u20007", "\u20017", "\u20027", "\u20037", "\u20047", "\u20057",
"\u20067", "\u20077", "\u20087", "\u20097", "\u200A7", "\u202F7",
"\u30007",
undefined, 1.5, "5%", "+100", ".5", true, false, {"test": 6}, NaN, +Infinity,
-Infinity, "\0",
{toString:function() {return 2;}, valueOf: null},
{valueOf:function() {return 3;}}],
"domExpected": function(val) {
var parsed = ReflectionTests.parseNonneg(String(val));
if (parsed === false || parsed > maxInt || parsed < minInt) {
return null;
}
return parsed;
},
"idlTests": [minInt, -36, -1, 0, 1, maxInt],
"idlDomExpected": [null/*exception*/, null/*exception*/, null/*exception*/, 0, 1, maxInt]
},
/**
* "If a reflecting IDL attribute is an unsigned integer type (unsigned
* long) then, on getting, the content attribute must be parsed according
* to the rules for parsing non-negative integers, and if that is
* successful, and the value is in the range 0 to 2147483647 inclusive, the
* resulting value must be returned. If, on the other hand, it fails or
* returns an out of range value, or if the attribute is absent, the
* default value must be returned instead, or 0 if there is no default
* value. On setting, the given value must be converted to the shortest
* possible string representing the number as a valid non-negative integer
* and then that string must be used as the new content attribute value."
*/
"unsigned long": {
"jsType": "number",
"defaultVal": 0,
"domTests": [minInt - 1, minInt, -36, -1, 0, 1, 257, maxInt,
maxInt + 1, maxUnsigned, maxUnsigned + 1, "", "-1", "-0", "0", "1",
"\u00097", "\u000B7", "\u000C7", "\u00207", "\u00A07", "\uFEFF7",
"\u000A7", "\u000D7", "\u20287", "\u20297", "\u16807", "\u180E7",
"\u20007", "\u20017", "\u20027", "\u20037", "\u20047", "\u20057",
"\u20067", "\u20077", "\u20087", "\u20097", "\u200A7", "\u202F7",
"\u30007",
" " + binaryString + " foo ", undefined, 1.5, "5%", "+100", ".5", true, false,
{"test": 6}, NaN, +Infinity, -Infinity, "\0",
{toString:function() {return 2;}, valueOf: null},
{valueOf:function() {return 3;}}],
"domExpected": function(val) {
var parsed = ReflectionTests.parseNonneg(String(val));
// Note maxInt, not maxUnsigned.
if (parsed === false || parsed < 0 || parsed > maxInt) {
return null;
}
return parsed;
},
"idlTests": [0, 1, 257, maxInt, "-0", maxInt + 1, maxUnsigned],
"idlIdlExpected": [0, 1, 257, maxInt, 0, null, null],
"idlDomExpected": [0, 1, 257, maxInt, 0, null, null],
},
/**
* "If a reflecting IDL attribute is an unsigned integer type (unsigned
* long) that is limited to only non-negative numbers greater than zero,
* then the behavior is similar to the previous case, but zero is not
* allowed. On getting, the content attribute must first be parsed
* according to the rules for parsing non-negative integers, and if that is
* successful, and the value is in the range 1 to 2147483647 inclusive, the
* resulting value must be returned. If, on the other hand, it fails or
* returns an out of range value, or if the attribute is absent, the
* default value must be returned instead, or 1 if there is no default
* value. On setting, if the value is zero, the user agent must fire an
* INDEX_SIZE_ERR exception. Otherwise, the given value must be converted
* to the shortest possible string representing the number as a valid
* non-negative integer and then that string must be used as the new
* content attribute value."
*/
"limited unsigned long": {
"jsType": "number",
"defaultVal": 1,
"domTests": [minInt - 1, minInt, -36, -1, 0, 1, maxInt,
maxInt + 1, maxUnsigned, maxUnsigned + 1, "", "-1", "-0", "0", "1",
"\u00097", "\u000B7", "\u000C7", "\u00207", "\u00A07", "\uFEFF7",
"\u000A7", "\u000D7", "\u20287", "\u20297", "\u16807", "\u180E7",
"\u20007", "\u20017", "\u20027", "\u20037", "\u20047", "\u20057",
"\u20067", "\u20077", "\u20087", "\u20097", "\u200A7", "\u202F7",
"\u30007",
" " + binaryString + " foo ", undefined, 1.5, "5%", "+100", ".5", true, false,
{"test": 6}, NaN, +Infinity, -Infinity, "\0",
{toString:function() {return 2;}, valueOf: null},
{valueOf:function() {return 3;}}],
"domExpected": function(val) {
var parsed = ReflectionTests.parseNonneg(String(val));
// Note maxInt, not maxUnsigned.
if (parsed === false || parsed < 1 || parsed > maxInt) {
return null;
}
return parsed;
},
"idlTests": [0, 1, maxInt, maxInt + 1, maxUnsigned],
"idlDomExpected": [null/*exception*/, 1, maxInt, null, null]
},
/**
* "If a reflecting IDL attribute has an unsigned integer type (unsigned
* long) that is limited to only non-negative numbers greater than zero
* with fallback, then the behaviour is similar to the previous case, but
* disallowed values are converted to the default value. On getting, the
* content attribute must first be parsed according to the rules for
* parsing non-negative integers, and if that is successful, and the value
* is in the range 1 to 2147483647 inclusive, the resulting value must be
* returned. If, on the other hand, it fails or returns an out of range
* value, or if the attribute is absent, the default value must be returned
* instead. On setting, first, if the new value is in the range 1 to
* 2147483647, then let n be the new value, otherwise let n be the default
* value; then, n must be converted to the shortest possible string
* representing the number as a valid non-negative integer and that string
* must be used as the new content attribute value."
*/
"limited unsigned long with fallback": {
"jsType": "number",
"domTests": [minInt - 1, minInt, -36, -1, 0, 1, maxInt,
maxInt + 1, maxUnsigned, maxUnsigned + 1, "", "-1", "-0", "0", "1",
"\u00097", "\u000B7", "\u000C7", "\u00207", "\u00A07", "\uFEFF7",
"\u000A7", "\u000D7", "\u20287", "\u20297", "\u16807", "\u180E7",
"\u20007", "\u20017", "\u20027", "\u20037", "\u20047", "\u20057",
"\u20067", "\u20077", "\u20087", "\u20097", "\u200A7", "\u202F7",
"\u30007",
" " + binaryString + " foo ", undefined, 1.5, "5%", "+100", ".5", true, false,
{"test": 6}, NaN, +Infinity, -Infinity, "\0",
{toString:function() {return 2;}, valueOf: null},
{valueOf:function() {return 3;}}],
"domExpected": function(val) {
var parsed = ReflectionTests.parseNonneg(String(val));
// Note maxInt, not maxUnsigned.
if (parsed === false || parsed < 1 || parsed > maxInt) {
return null;
}
return parsed;
},
"idlTests": [0, 1, maxInt, maxInt + 1, maxUnsigned],
"idlDomExpected": [null, 1, maxInt, null, null]
},
/**
* "If a reflecting IDL attribute has an unsigned integer type (unsigned
* long) that is clamped to the range [min, max], then on getting, the
* content attribute must first be parsed according to the rules for
* parsing non-negative integers, and if that is successful, and the value
* is between min and max inclusive, the resulting value must be returned.
* If it fails, the default value must be returned. If it succeeds but the
* value is less than min, min must be returned. If it succeeds but the
* value is greater than max, max must be returned. On setting, it behaves
* the same as a regular reflected unsigned integer."
*
* The data object passed to reflects must contain the keys defaultVal,
* min, and max. As with enum, domExpected is generated later once we have
* access to the min and max.
*/
"clamped unsigned long": {
"jsType": "number",
"domTests": [minInt - 1, minInt, -36, -1, 0, 1, maxInt,
maxInt + 1, maxUnsigned, maxUnsigned + 1, "", "-1", "-0", "0", "1",
"\u00097", "\u000B7", "\u000C7", "\u00207", "\u00A07", "\uFEFF7",
"\u000A7", "\u000D7", "\u20287", "\u20297", "\u16807", "\u180E7",
"\u20007", "\u20017", "\u20027", "\u20037", "\u20047", "\u20057",
"\u20067", "\u20077", "\u20087", "\u20097", "\u200A7", "\u202F7",
"\u30007",
" " + binaryString + " foo ", undefined, 1.5, "5%", "+100", ".5", true, false,
{"test": 6}, NaN, +Infinity, -Infinity, "\0",
{toString:function() {return 2;}, valueOf: null},
{valueOf:function() {return 3;}}],
"idlTests": [0, 1, 257, maxInt, "-0", maxInt + 1, maxUnsigned],
"idlDomExpected": [0, 1, 257, maxInt, 0, null, null],
},
/**
* "If a reflecting IDL attribute is a floating point number type (double),
* then, on getting, the content attribute must be parsed according to the
* rules for parsing floating point number values, and if that is
* successful, the resulting value must be returned. If, on the other hand,
* it fails, or if the attribute is absent, the default value must be
* returned instead, or 0.0 if there is no default value. On setting, the
* given value must be converted to the best representation of the number
* as a floating point number and then that string must be used as the new
* content attribute value."
*
* TODO: Check this:
*
* "Except where otherwise specified, if an IDL attribute that is a
* floating point number type (double) is assigned an Infinity or
* Not-a-Number (NaN) value, a NOT_SUPPORTED_ERR exception must be raised."
*
* TODO: Implement the actual algorithm so we can run lots more tests. For
* now we're stuck with manually setting up expected values. Of course,
* a lot of care has to be taken in checking equality for floats . . .
* maybe we should have some tolerance for comparing them. I'm not even
* sure whether setting the content attribute to 0 should return 0.0 or
* -0.0 (the former, I hope).
*/
"double": {
"jsType": "number",
"defaultVal": 0.0,
"domTests": [minInt - 1, minInt, -36, -1, 0, 1, maxInt,
maxInt + 1, maxUnsigned, maxUnsigned + 1, "",
"\u00097", "\u000B7", "\u000C7", "\u00207", "\u00A07", "\uFEFF7",
"\u000A7", "\u000D7", "\u20287", "\u20297", "\u16807", "\u180E7",
"\u20007", "\u20017", "\u20027", "\u20037", "\u20047", "\u20057",
"\u20067", "\u20077", "\u20087", "\u20097", "\u200A7", "\u202F7",
"\u30007",
" " + binaryString + " foo ", undefined, 1.5, "5%", "+100", ".5", true, false,
{"test": 6}, NaN, +Infinity, -Infinity, "\0",
{toString:function() {return 2;}, valueOf: null},
{valueOf:function() {return 3;}}],
"domExpected": [minInt - 1, minInt, -36, -1, 0, 1, maxInt,
maxInt + 1, maxUnsigned, maxUnsigned + 1, null,
// Leading whitespace tests
7, null, 7, 7, null, null,
7, 7, null, null, null, null,
null, null, null, null, null, null,
null, null, null, null, null, null,
null,
// End leading whitespace tests
null, null, 1.5, 5, 100, 0.5, null, null,
null, null, null, null, null,
2, 3],
// I checked that ES ToString is well-defined for all of these (I
// think). Yes, String(-0) == "0".
"idlTests": [ -10000000000, -1, -0, 0, 1, 10000000000],
"idlDomExpected": ["-10000000000", "-1", "0", "0", "1", "10000000000"],
"idlIdlExpected": [ -10000000000, -1, -0, 0, 1, 10000000000]
}
};
for (var type in ReflectionTests.typeMap) {
var props = ReflectionTests.typeMap[type];
var cast = window[props.jsType[0].toUpperCase() + props.jsType.slice(1)];
if (props.domExpected === undefined) {
props.domExpected = props.domTests.map(cast);
} else if (typeof props.domExpected == "function") {
props.domExpected = props.domTests.map(props.domExpected);
}
if (props.idlTests === undefined) {
props.idlTests = props.domTests;
}
if (props.idlDomExpected === undefined) {
props.idlDomExpected = props.idlTests.map(cast);
} else if (typeof props.idlDomExpected == "function") {
props.idlDomExpected = props.idlTests.map(props.idlDomExpected);
}
if (props.idlIdlExpected === undefined) {
props.idlIdlExpected = props.idlDomExpected;
} else if (typeof props.idlIdlExpected == "function") {
props.idlIdlExpected = props.idlTests.map(props.idlIdlExpected);
}
}
/**
* Tests that the JavaScript attribute named idlName on the object idlObj
* reflects the DOM attribute named domName on domObj. The data argument is an
* object that must contain at least one key, "type", which contains the
* expected type of the IDL attribute ("string", "enum", etc.). The "comment"
* key will add a parenthesized comment in the type info if there's a test
* failure, to indicate that there's something special about the element you're
* testing (like it has an attribute set to some value). Other keys in the
* data object are type-specific, e.g., "defaultVal" for numeric types. If the
* data object is a string, it's converted to {"type": data}. If idlObj is a
* string, we set idlObj = domObj = document.createElement(idlObj).
*/
ReflectionTests.reflects = function(data, idlName, idlObj, domName, domObj) {
// Do some setup first so that getTypeDescription() works in testWrapper()
if (typeof data == "string") {
data = {type: data};
}
if (domName === undefined) {
domName = idlName;
}
if (typeof idlObj == "string") {
idlObj = document.createElement(idlObj);
}
if (domObj === undefined) {
domObj = idlObj;
}
// Note: probably a hack? This kind of assumes that the variables here
// won't change over the course of the tests, which is wrong, but it's
// probably safe enough. Just don't read stuff that will change.
ReflectionHarness.currentTestInfo = {data: data, idlName: idlName, idlObj: idlObj, domName: domName, domObj: domObj};
// If we don't recognize the type, testing is impossible.
if (this.typeMap[data.type] === undefined) {
if (unimplemented.indexOf(data.type) == -1) {
unimplemented.push(data.type);
}
return;
}
var typeInfo = this.typeMap[data.type];
if (typeof data.isNullable == "undefined") {
data.isNullable = false;
}
// Test that typeof idlObj[idlName] is correct. If not, further tests are
// probably pointless, so bail out if we're not running conformance tests.
var expectedType = data.isNullable && data.defaultVal === null ? "object"
: typeInfo.jsType;
ReflectionHarness.test(function() {
ReflectionHarness.assertEquals(typeof idlObj[idlName], expectedType);
}, "typeof IDL attribute");
if (!ReflectionHarness.conformanceTesting &&
typeof idlObj[idlName] !== expectedType) {
return;
}
// Test default
var defaultVal = data.defaultVal;
if (defaultVal === undefined) {
defaultVal = typeInfo.defaultVal;
}
if ((domObj.localName === "form" && domName === "action") ||
(["button", "input"].includes(domObj.localName) &&
domName === "formAction")) {
// Hard-coded special case
defaultVal = domObj.ownerDocument.URL;
}
if (!data.customGetter && (defaultVal !== null || data.isNullable)) {
ReflectionHarness.test(function() {
ReflectionHarness.assertEquals(idlObj[idlName], defaultVal);
}, "IDL get with DOM attribute unset");
}
var domTests = typeInfo.domTests.slice(0);
var domExpected = typeInfo.domExpected.map(function(val) { return val === null ? defaultVal : val; });
var idlTests = typeInfo.idlTests.slice(0);
var idlDomExpected = typeInfo.idlDomExpected.map(function(val) { return val === null ? defaultVal : val; });
var idlIdlExpected = typeInfo.idlIdlExpected.map(function(val) { return val === null ? defaultVal : val; });
switch (data.type) {
// Extra tests and other special-casing
case "boolean":
domTests.push(domName);
domExpected.push(true);
break;
case "enum":
// Whee, enum is complicated.
if (typeof data.invalidVal == "undefined") {
data.invalidVal = defaultVal;
}
if (typeof data.nonCanon == "undefined") {
data.nonCanon = {};
}
for (var i = 0; i < data.keywords.length; i++) {
if (data.keywords[i] != "") {
domTests.push(data.keywords[i], "x" + data.keywords[i], data.keywords[i] + "\0");
idlTests.push(data.keywords[i], "x" + data.keywords[i], data.keywords[i] + "\0");
}
if (data.keywords[i].length > 1) {
var sliced = data.keywords[i].slice(1);
// If slicing a value yields another valid value, then skip it since it results in duplicate tests.
if (data.keywords.indexOf(sliced) == -1) {
domTests.push(sliced);
idlTests.push(sliced);
}
}
if (data.keywords[i] != data.keywords[i].toLowerCase()) {
domTests.push(data.keywords[i].toLowerCase());
idlTests.push(data.keywords[i].toLowerCase());
}
if (data.keywords[i] != data.keywords[i].toUpperCase()) {
domTests.push(data.keywords[i].toUpperCase());
idlTests.push(data.keywords[i].toUpperCase());
}
if (data.keywords[i] != data.keywords[i].replace(/k/g, "\u212A")) {
domTests.push(data.keywords[i].replace(/k/g, "\u212A"));
idlTests.push(data.keywords[i].replace(/k/g, "\u212A"));
}
}
// Per spec, the expected DOM values are the same as the value we set
// it to.
if (!data.isNullable) {
idlDomExpected = idlTests.slice(0);
} else {
idlDomExpected = [];
for (var i = 0; i < idlTests.length; i++) {
idlDomExpected.push((idlTests[i] === null || idlTests[i] === undefined) ? null : idlTests[i]);
}
}
// Now we have the fun of calculating what the expected IDL values are.
domExpected = [];
idlIdlExpected = [];
for (var i = 0; i < domTests.length; i++) {
domExpected.push(this.enumExpected(data.keywords, data.nonCanon, data.invalidVal, domTests[i]));
}
for (var i = 0; i < idlTests.length; i++) {
if (data.isNullable && (idlTests[i] === null || idlTests[i] === undefined)) {
idlIdlExpected.push(null);
} else {
idlIdlExpected.push(this.enumExpected(data.keywords, data.nonCanon, data.invalidVal, idlTests[i]));
}
}
break;
case "string":
if ("treatNullAsEmptyString" in data) {
for (var i = 0; i < idlTests.length; i++) {
if (idlTests[i] === null) {
idlDomExpected[i] = idlIdlExpected[i] = "";
}
}
}
break;
case "clamped unsigned long":
[data.min - 1, data.min, data.max, data.max + 1].forEach(function(val) {
if (domTests.indexOf(val) == -1) {
domTests.push(val);
}
if (idlTests.indexOf(val) == -1 && 0 <= val && val <= maxUnsigned) {
idlTests.push(val);
if (typeof val != "number") {
val = ReflectionTests.parseNonneg(val);
}
idlDomExpected.push(val > maxInt ? null : val);
}
});
// Rewrite expected values
domExpected = domTests.map(function(val) {
var parsed = ReflectionTests.parseNonneg(String(val));
if (parsed === false) {
return defaultVal;
}
if (parsed < data.min) {
return data.min;
}
if (parsed > data.max) {
return data.max;
}
return parsed;
});
idlIdlExpected = idlTests.map(function(val) {
if (typeof val != "number") {
val = ReflectionTests.parseNonneg(val);
}
if (val < 0 || val > maxUnsigned) {
throw "Test bug: val should be an unsigned long";
}
if (val > maxInt) {
return defaultVal;
}
if (val < data.min) {
return data.min;
}
if (val > data.max) {
return data.max;
}
return val;
});
break;
}
if (domObj.tagName.toLowerCase() == "canvas" && (domName == "width" || domName == "height")) {
// Opera tries to allocate a canvas with the given width and height, so
// it OOMs when given excessive sizes. This is permissible under the
// hardware-limitations clause, so cut out those checks. TODO: Must be
// a way to make this more succinct.
domTests = domTests.filter(function(element, index, array) { return domExpected[index] < 1000; });
domExpected = domExpected.filter(function(element, index, array) { return element < 1000; });
idlTests = idlTests.filter(function(element, index, array) { return idlIdlExpected[index] < 1000; });
idlDomExpected = idlDomExpected.filter(function(element, index, array) { return idlIdlExpected[index] < 1000; });
idlIdlExpected = idlIdlExpected.filter(function(element, index, array) { return idlIdlExpected[index] < 1000; });
}
if ((domObj.localName === "form" && domName === "action") ||
(["button", "input"].includes(domObj.localName) &&
domName === "formAction")) {
// Hard-coded special case
for (var i = 0; i < domTests.length; i++) {
if (domTests[i] === "") {
domExpected[i] = domObj.ownerDocument.URL;
}
}
for (var i = 0; i < idlTests.length; i++) {
if (idlTests[i] === "") {
idlIdlExpected[i] = domObj.ownerDocument.URL;
}
}
}
if (data.customGetter) {
// These are reflected only on setting, not getting
domTests = [];
domExpected = [];
idlIdlExpected = idlIdlExpected.map(() => null);
}
for (var i = 0; i < domTests.length; i++) {
if (domExpected[i] === null && !data.isNullable) {
// If you follow all the complicated logic here, you'll find that
// this will only happen if there's no expected value at all (like
// for tabIndex, where the default is too complicated). So skip
// the test.
continue;
}
ReflectionHarness.test(function() {
domObj.setAttribute(domName, domTests[i]);
ReflectionHarness.assertEquals(domObj.getAttribute(domName),
String(domTests[i]), "getAttribute()");
ReflectionHarness.assertEquals(idlObj[idlName], domExpected[i],
"IDL get");
}, "setAttribute() to " + ReflectionHarness.stringRep(domTests[i]));
}
for (var i = 0; i < idlTests.length; i++) {
ReflectionHarness.test(function() {
if ((data.type == "limited long" && idlTests[i] < 0) ||
(data.type == "limited unsigned long" && idlTests[i] == 0)) {
ReflectionHarness.assertThrows("IndexSizeError", function() {
idlObj[idlName] = idlTests[i];
});
} else {
idlObj[idlName] = idlTests[i];
if (data.type == "boolean") {
// Special case yay
ReflectionHarness.assertEquals(domObj.hasAttribute(domName),
Boolean(idlTests[i]), "hasAttribute()");
} else if (idlDomExpected[i] !== null || data.isNullable) {
var expected = idlDomExpected[i] + "";
if (data.isNullable && idlDomExpected[i] === null) {
expected = null;
}
ReflectionHarness.assertEquals(domObj.getAttribute(domName), expected,
"getAttribute()");
}
if (idlIdlExpected[i] !== null || data.isNullable) {
ReflectionHarness.assertEquals(idlObj[idlName], idlIdlExpected[i], "IDL get");
}
}
}, "IDL set to " + ReflectionHarness.stringRep(idlTests[i]));
}
};
function toASCIILowerCase(str) {
return str.replace(/[A-Z]/g, function(m) { return m.toLowerCase(); });
}
/**
* If we have an enumerated attribute limited to the array of values in
* keywords, with nonCanon being a map of non-canonical values to their
* canonical equivalents, and invalidVal being the invalid value default (or ""
* for none), then what would we expect from an IDL get if the content
* attribute is equal to contentVal?
*/
ReflectionTests.enumExpected = function(keywords, nonCanon, invalidVal, contentVal) {
var ret = invalidVal;
for (var i = 0; i < keywords.length; i++) {
if (toASCIILowerCase(String(contentVal)) === toASCIILowerCase(keywords[i])) {
ret = keywords[i];
break;
}
}
if (typeof nonCanon[ret] != "undefined") {
return nonCanon[ret];
}
return ret;
};
/**
* Now we have the data structures that tell us which elements have which
* attributes.
*
* The elements object (which must have been defined in earlier files) is a map
* from element name to an object whose keys are IDL attribute names and whose
* values are types. A type is of the same format as
* ReflectionTests.reflects() accepts, except that there's an extra optional
* domAttrName key that gets passed as the fourth argument to reflects() if
* it's provided. (TODO: drop the fourth and fifth reflects() arguments and
* make it take them from the dictionary instead?)
*/
// Now we actually run all the tests.
var unimplemented = [];
for (var element in elements) {
ReflectionTests.reflects("string", "title", element);
ReflectionTests.reflects("string", "lang", element);
ReflectionTests.reflects({type: "enum", keywords: ["ltr", "rtl", "auto"]}, "dir", element);
ReflectionTests.reflects("string", "className", element, "class");
ReflectionTests.reflects("tokenlist", "classList", element, "class");
ReflectionTests.reflects("boolean", "hidden", element);
ReflectionTests.reflects("string", "accessKey", element);
// Don't try to test the defaultVal -- it should be either 0 or -1, but the
// rules are complicated, and a lot of them are SHOULDs.
ReflectionTests.reflects({type: "long", defaultVal: null}, "tabIndex", element);
// TODO: classList, contextMenu, itemProp, itemRef
for (var idlAttrName in elements[element]) {
var type = elements[element][idlAttrName];
ReflectionTests.reflects(type, idlAttrName, element,
typeof type == "object" && "domAttrName" in type ? type.domAttrName : idlAttrName);
}
}
for (var i = 0; i < extraTests.length; i++) {
extraTests[i]();
}
var time = document.getElementById("time");
if (time) {
time.innerHTML = (new Date().getTime() - ReflectionTests.start)/1000;
}
if (unimplemented.length) {
var p = document.createElement("p");
p.textContent = "(Note: missing tests for types " + unimplemented.join(", ") + ".)";
document.body.appendChild(p);
}