1 files changed, 201 insertions, 0 deletions
diff --git a/js/xpconnect/tests/unit/test_params.js b/js/xpconnect/tests/unit/test_params.js
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index 000000000..dfe4b822a
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+++ b/js/xpconnect/tests/unit/test_params.js
@@ -0,0 +1,201 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+
+function run_test() {
+
+  // Load the component manifests.
+  registerAppManifest(do_get_file('../components/native/chrome.manifest'));
+  registerAppManifest(do_get_file('../components/js/xpctest.manifest'));
+
+  // Test for each component.
+  test_component("@mozilla.org/js/xpc/test/native/Params;1");
+  test_component("@mozilla.org/js/xpc/test/js/Params;1");
+}
+
+function test_component(contractid) {
+
+  // Instantiate the object.
+  var o = Cc[contractid].createInstance(Ci["nsIXPCTestParams"]);
+
+  // Possible comparator functions.
+  var standardComparator = function(a,b) {return a == b;};
+  var dotEqualsComparator = function(a,b) {return a.equals(b); }
+  var fuzzComparator = function(a,b) {return Math.abs(a - b) < 0.1;};
+  var interfaceComparator = function(a,b) {return a.name == b.name; }
+  var arrayComparator = function(innerComparator) {
+    return function(a,b) {
+      if (a.length != b.length)
+        return false;
+      for (var i = 0; i < a.length; ++i)
+        if (!innerComparator(a[i], b[i]))
+          return false;
+      return true;
+    };
+  };
+
+  // Helper test function - takes the name of test method and two values of
+  // the given type.
+  //
+  // The optional comparator argument can be used for alternative notions of
+  // equality. The comparator should return true on equality.
+  function doTest(name, val1, val2, comparator) {
+    if (!comparator)
+      comparator = standardComparator;
+    var a = val1;
+    var b = {value: val2};
+    var rv = o[name].call(o, a, b);
+    do_check_true(comparator(rv, val2));
+    do_check_true(comparator(val1, b.value));
+  };
+
+  function doIsTest(name, val1, val1Is, val2, val2Is, valComparator, isComparator) {
+    if (!isComparator)
+      isComparator = standardComparator;
+    var a = val1;
+    var aIs = val1Is;
+    var b = {value: val2};
+    var bIs = {value: val2Is};
+    var rvIs = {};
+    var rv = o[name].call(o, aIs, a, bIs, b, rvIs);
+    do_check_true(valComparator(rv, val2));
+    do_check_true(isComparator(rvIs.value, val2Is));
+    do_check_true(valComparator(val1, b.value));
+    do_check_true(isComparator(val1Is, bIs.value));
+  }
+
+  // Special-purpose function for testing arrays of iid_is interfaces, where we
+  // have 2 distinct sets of dependent parameters.
+  function doIs2Test(name, val1, val1Size, val1IID, val2, val2Size, val2IID) {
+    var a = val1;
+    var aSize = val1Size;
+    var aIID = val1IID;
+    var b = {value: val2};
+    var bSize = {value: val2Size};
+    var bIID = {value: val2IID};
+    var rvSize = {};
+    var rvIID = {};
+    var rv = o[name].call(o, aSize, aIID, a, bSize, bIID, b, rvSize, rvIID);
+    do_check_true(arrayComparator(interfaceComparator)(rv, val2));
+    do_check_true(standardComparator(rvSize.value, val2Size));
+    do_check_true(dotEqualsComparator(rvIID.value, val2IID));
+    do_check_true(arrayComparator(interfaceComparator)(val1, b.value));
+    do_check_true(standardComparator(val1Size, bSize.value));
+    do_check_true(dotEqualsComparator(val1IID, bIID.value));
+  }
+
+  // Check that the given call (type mismatch) results in an exception being thrown.
+  function doTypedArrayMismatchTest(name, val1, val1Size, val2, val2Size) {
+    var comparator = arrayComparator(standardComparator);
+    var error = false;
+    try {
+      doIsTest(name, val1, val1Size, val2, val2Size, comparator);
+      
+      // An exception was not thrown as would have been expected.
+      do_check_true(false);
+    }
+    catch (e) {
+      // An exception was thrown as expected.
+      do_check_true(true);
+    }
+  }
+
+  // Workaround for bug 687612 (inout parameters broken for dipper types).
+  // We do a simple test of copying a into b, and ignore the rv.
+  function doTestWorkaround(name, val1) {
+    var a = val1;
+    var b = {value: ""};
+    o[name].call(o, a, b);
+    do_check_eq(val1, b.value);
+  }
+
+  // Test all the different types
+  doTest("testBoolean", true, false);
+  doTest("testOctet", 4, 156);
+  doTest("testShort", -456, 1299);
+  doTest("testLong", 50060, -12121212);
+  doTest("testLongLong", 12345, -10000000000);
+  doTest("testUnsignedShort", 1532, 65000);
+  doTest("testUnsignedLong", 0, 4000000000);
+  doTest("testUnsignedLongLong", 215435, 3453492580348535809);
+  doTest("testFloat", 4.9, -11.2, fuzzComparator);
+  doTest("testDouble", -80.5, 15000.2, fuzzComparator);
+  doTest("testChar", "a", "2");
+  doTest("testString", "someString", "another string");
+  doTest("testWstring", "Why wasnt this", "turned on before? ಠ_ಠ");
+  doTest("testWchar", "z", "ア");
+  doTestWorkaround("testDOMString", "Beware: ☠ s");
+  doTestWorkaround("testAString", "Frosty the ☃ ;-)");
+  doTestWorkaround("testAUTF8String", "We deliver 〠!");
+  doTestWorkaround("testACString", "Just a regular C string.");
+  doTest("testJsval", {aprop: 12, bprop: "str"}, 4.22);
+
+  // Test out dipper parameters, since they're special and we can't really test
+  // inouts.
+  let outAString = {};
+  o.testOutAString(outAString);
+  do_check_eq(outAString.value, "out");
+  try { o.testOutAString(undefined); } catch (e) {} // Don't crash
+  try { o.testOutAString(null); } catch (e) {} // Don't crash
+  try { o.testOutAString("string"); } catch (e) {} // Don't crash
+
+  // Helpers to instantiate various test XPCOM objects.
+  var numAsMade = 0;
+  function makeA() {
+    var a = Cc["@mozilla.org/js/xpc/test/js/InterfaceA;1"].createInstance(Ci['nsIXPCTestInterfaceA']);
+    a.name = 'testA' + numAsMade++;
+    return a;
+  };
+  var numBsMade = 0;
+  function makeB() {
+    var b = Cc["@mozilla.org/js/xpc/test/js/InterfaceB;1"].createInstance(Ci['nsIXPCTestInterfaceB']);
+    b.name = 'testB' + numBsMade++;
+    return b;
+  };
+
+  // Test arrays.
+  doIsTest("testShortArray", [2, 4, 6], 3, [1, 3, 5, 7], 4, arrayComparator(standardComparator));
+  doIsTest("testDoubleArray", [-10, -0.5], 2, [1, 3, 1e11, -8e-5 ], 4, arrayComparator(fuzzComparator));
+
+  doIsTest("testStringArray", ["mary", "hat", "hey", "lid", "tell", "lam"], 6,
+                              ["ids", "fleas", "woes", "wide", "has", "know", "!"], 7, arrayComparator(standardComparator));
+  doIsTest("testWstringArray", ["沒有語言", "的偉大嗎?]"], 2,
+                               ["we", "are", "being", "sooo", "international", "right", "now"], 7, arrayComparator(standardComparator));
+  doIsTest("testInterfaceArray", [makeA(), makeA()], 2,
+                                 [makeA(), makeA(), makeA(), makeA(), makeA(), makeA()], 6, arrayComparator(interfaceComparator));
+
+  // Test typed arrays and ArrayBuffer aliasing.
+  var arrayBuffer = new ArrayBuffer(16);
+  var int16Array = new Int16Array(arrayBuffer, 2, 3);
+  int16Array.set([-32768, 0, 32767]);
+  doIsTest("testShortArray", int16Array, 3, new Int16Array([1773, -32768, 32767, 7]), 4, arrayComparator(standardComparator));
+  doIsTest("testDoubleArray", new Float64Array([-10, -0.5]), 2, new Float64Array([0, 3.2, 1.0e10, -8.33 ]), 4, arrayComparator(fuzzComparator));
+
+  // Test sized strings.
+  var ssTests = ["Tis not possible, I muttered", "give me back my free hardcore!", "quoth the server:", "4〠4"];
+  doIsTest("testSizedString", ssTests[0], ssTests[0].length, ssTests[1], ssTests[1].length, standardComparator);
+  doIsTest("testSizedWstring", ssTests[2], ssTests[2].length, ssTests[3], ssTests[3].length, standardComparator);
+
+  // Test iid_is.
+  doIsTest("testInterfaceIs", makeA(), Ci['nsIXPCTestInterfaceA'],
+                              makeB(), Ci['nsIXPCTestInterfaceB'],
+                              interfaceComparator, dotEqualsComparator);
+
+  // Test arrays of iids.
+  doIs2Test("testInterfaceIsArray", [makeA(), makeA(), makeA(), makeA(), makeA()], 5, Ci['nsIXPCTestInterfaceA'],
+                                    [makeB(), makeB(), makeB()], 3, Ci['nsIXPCTestInterfaceB']);
+
+  // Test optional array size.
+  do_check_eq(o.testStringArrayOptionalSize(["some", "string", "array"]), "somestringarray");
+
+  // Test incorrect (too big) array size parameter; this should throw NOT_ENOUGH_ELEMENTS.
+  doTypedArrayMismatchTest("testShortArray", new Int16Array([-3, 7, 4]), 4,
+                                             new Int16Array([1, -32, 6]), 3);
+
+  // Test type mismatch (int16 <-> uint16); this should throw BAD_CONVERT_JS.
+  doTypedArrayMismatchTest("testShortArray", new Uint16Array([0, 7, 4, 3]), 4,
+                                             new Uint16Array([1, 5, 6]), 3);
+}