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TiddlyWiki5/editions/tw2/source/tiddlywiki/test/js/Arrays.js
2012-11-16 21:20:27 +00:00

221 lines
7.1 KiB
JavaScript
Executable File

jQuery(document).ready(function() {
module("Arrays");
test("Array indexOf", function() {
var actual, expected;
actual = typeof [].indexOf;
expected = "function";
same(actual, expected, "method exists");
actual = ["foo", "bar", "baz"].indexOf("bar");
expected = 1;
same(actual, expected, "returns element postion");
actual = ["foo", "bar"].indexOf("baz");
expected = -1;
same(actual, expected, "returns -1 if element not present");
actual = ["foo", "bar", "baz"].indexOf("baz", 1);
expected = 2;
same(actual, expected, "returns element position if element is present within given range");
actual = ["foo", "bar", "baz"].indexOf("foo", 1);
expected = -1;
same(actual, expected, "returns -1 if element is not present within given range");
});
test("Array findByField", function() {
var actual, expected;
var L = [{ foo: "lorem", bar: "ipsum" }, { bar: "dolor", baz: "sit" }, { bar: "dolor" }];
actual = L.findByField();
expected = 0;
same(actual, expected, "returns 0 if no arguments are specified"); // XXX: not actually desired; cf. ticket #964
actual = L.findByField("bar", "dolor");
expected = 1;
same(actual, expected, "returns position of first matching element");
actual = L.findByField("bar", "xxx");
expected = null;
same(actual, expected, "returns null if no match was found"); // XXX: not actually desired; cf. ticket #966
});
test("Array contains", function() {
var actual, expected;
var L = ["foo", "bar", "baz", "bar"];
actual = L.contains();
expected = false;
same(actual, expected, "returns false if no arguments are specified");
actual = L.contains("bar");
expected = true;
same(actual, expected, "returns true if a matching element was found");
actual = L.contains("xxx");
expected = false;
same(actual, expected, "returns false if no matching element was found");
});
test("Array containsAny", function() {
var actual, expression, expected;
var L = ["foo", "bar", "baz"];
expression = function() { L.containsAny(); };
expected = "TypeError";
raises(expression, expected, "raises exception if no arguments are specified");
actual = L.containsAny("foo");
expected = false;
same(actual, expected, "returns false if argument is not an array"); // XXX: not actually desired!?
actual = L.containsAny(["lorem", "bar"]);
expected = true;
same(actual, expected, "returns true if a matching item has been found");
actual = L.containsAny(["lorem", "ipsum"]);
expected = false;
same(actual, expected, "returns false if no matching item has been found");
});
test("Array containsAll", function() {
var actual, expression, expected;
var L = ["foo", "bar", "baz"];
expression = function() { L.containsAll(); };
expected = "TypeError";
raises(expression, expected, "raises exception if no arguments are specified");
actual = L.containsAll("foo");
expected = false;
same(actual, expected, "returns false if argument is not an array"); // XXX: not actually desired!?
actual = L.containsAll(["foo", "bar"]);
expected = true;
same(actual, expected, "returns true if all given items have been found");
actual = L.containsAll(["lorem", "bar"]);
expected = false;
same(actual, expected, "returns false if not all given items have been found");
});
test("Array pushUnique", function() {
var actual, expected;
/* XXX: behavior currently undefined
actual = ["foo", "bar"];
actual.pushUnique();
expected = ["foo", "bar"];
same(actual, expected, "does not modify array if no arguments are specified");
*/
actual = ["foo", "bar"];
actual.pushUnique("baz");
expected = ["foo", "bar", "baz"];
same(actual, expected, "appends given item to original array, provided an identical element is not present yet");
actual = ["foo", "bar", "baz"];
actual.pushUnique("baz");
expected = ["foo", "bar", "baz"];
same(actual, expected, "does not modify original array if given item is already present");
actual = [{ foo: "lorem" }, { bar: "ipsum" }];
actual.pushUnique({ bar: "ipsum" });
expected = [{ foo: "lorem" }, { bar: "ipsum" }, { bar: "ipsum" }];
same(actual, expected, "appends given item to original array if it is an object (deep comparison is not supported)"); // XXX: not actually desired!? -- cf. #606
});
test("Array remove", function() {
var actual, expected, L;
actual = ["foo", "bar", "baz"];
actual.remove();
expected = ["foo", "bar", "baz"];
same(actual, expected, "does not modify original array if no arguments are specified");
actual = ["foo", "bar", "baz"];
actual.remove("bar");
expected = ["foo", "baz"];
same(actual, expected, "removes given item from original array, provided such an element is present");
actual = ["foo", "bar", "baz"];
actual.remove("lorem");
expected = ["foo", "bar", "baz"];
same(actual, expected, "does not modify original array if given item is not present");
actual = [{ foo: "lorem" }, { bar: "ipsum" }];
actual.remove({ bar: "ipsum" });
expected = [{ foo: "lorem" }, { bar: "ipsum" }];
same(actual, expected, "does not modify original array if given item is an object (deep comparison is not supported)"); // XXX: not actually desired!? -- cf. #606
});
test("Array setItem", function() {
var actual, expected;
actual = ["foo", "bar", "baz"];
actual.setItem();
expected = ["foo", "bar", "baz"];
same(actual, expected, "does not modify array if no arguments are specified");
actual = ["foo", "bar", "baz"];
actual.setItem("foo");
expected = ["foo", "bar", "baz"];
same(actual, expected, "does not modify original array if mode is not specified");
actual = ["foo", "bar"];
actual.setItem("baz", 0);
expected = ["foo", "bar", "baz"];
same(actual, expected, "appends given item to original array if mode is 0 and element is not present");
actual = ["foo", "bar", "baz"];
actual.setItem("bar", 0);
expected = ["foo", "baz"];
same(actual, expected, "removes given item from original array if mode 0 and element is present");
actual = ["foo", "bar"];
actual.setItem("baz", +1);
expected = ["foo", "bar", "baz"];
same(actual, expected, "appends given item to original array if mode is +1 and element is not present");
actual = ["foo", "bar"];
actual.setItem("bar", +1);
expected = ["foo", "bar"];
same(actual, expected, "does not modify original array if mode is +1 and element is present");
actual = ["foo", "bar", "baz"];
actual.setItem("bar", -1);
expected = ["foo", "baz"];
same(actual, expected, "removes given item from original array if mode is -1 and element is present");
actual = ["foo", "bar"];
actual.setItem("baz", -1);
expected = ["foo", "bar"];
same(actual, expected, "does not modify original array if mode is -1 and element is not present");
});
test("Array map", function() {
var actual, expected, L;
L = ["foo", "lorem", "amet"];
actual = L.map(function(item, i) {
return item.substr(2, 1);
});
expected = ["o", "r", "e"];
same(actual, expected, "returns an array of elements defined by the specified callback");
actual = L.map(function(item, i) {
return item.length + i;
});
expected = [3, 6, 6];
same(actual, expected, "passes element value and index to the callback");
});
});