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Test Info: Warnings
- This test gets skipped with pattern: !debug
- Manifest: dom/bindings/test/mochitest.toml
<!-- Any copyright is dedicated to the Public Domain.
<!DOCTYPE HTML>
<html>
<head>
<title>Test Helpers of Observable Array Type</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<script>
/* global TestInterfaceObservableArray */
add_task(async function init() {
await SpecialPowers.pushPrefEnv({set: [["dom.expose_test_interfaces", true]]});
});
add_task(function testObservableArray_helper_elementAt() {
let m = new TestInterfaceObservableArray();
[
// [values, property, helper]
[[true, false], "observableArrayBoolean", m.booleanElementAtInternal.bind(m)],
[[new TestInterfaceObservableArray(), new TestInterfaceObservableArray()],
"observableArrayInterface", m.interfaceElementAtInternal.bind(m)],
[[{property: "test"}, {property: 2}], "observableArrayObject",
m.objectElementAtInternal.bind(m)],
].forEach(function([values, property, helper]) {
m[property] = values;
let t = m[property];
ok(Array.isArray(t), "observable array should be an array type");
is(t.length, values.length, "length of observable array");
for (let i = 0; i < values.length; i++) {
isDeeply(values[i], helper(i), `check index ${i}`);
}
SimpleTest.doesThrow(() => {
helper(values.length);
}, `getting element outside the range should throw`);
});
});
add_task(function testObservableArray_helper_replaceElementAt() {
let setCallbackCount = 0;
let deleteCallbackCount = 0;
let setCallbackTests = null;
let deleteCallbackTests = null;
let m = new TestInterfaceObservableArray({
setBooleanCallback(value, index) {
setCallbackCount++;
if (typeof setCallbackTests === 'function') {
setCallbackTests(value, index);
}
},
deleteBooleanCallback(value, index) {
deleteCallbackCount++;
if (typeof deleteCallbackTests === 'function') {
deleteCallbackTests(value, index);
}
},
});
let b = m.observableArrayBoolean;
ok(Array.isArray(b), "observable array should be an array type");
is(b.length, 0, "length of observable array should be 0");
[
// [index, value, shouldThrow]
[b.length + 1, false, true],
[b.length, false, false],
[b.length + 1, false, false],
[b.length + 1, true, false],
].forEach(function([index, value, shouldThrow]) {
// Initialize
let oldValue = b[index];
let oldLen = b.length;
setCallbackCount = 0;
deleteCallbackCount = 0;
setCallbackTests = function(_value, _index) {
info(`set callback for ${_index}`);
is(_value, value, "setCallbackTests: test value argument");
is(_index, index, "setCallbackTests: test index argument");
};
deleteCallbackTests = function(_value, _index) {
info(`delete callback for ${_index}`);
is(_value, oldValue, "deleteCallbackTests: test value argument");
is(_index, index, "deleteCallbackTests: test index argument");
};
// Test
info(`setting value of property ${index} to ${value}`);
try {
m.booleanReplaceElementAtInternal(index, value);
ok(!shouldThrow, `setting value should not throw`);
} catch(e) {
ok(shouldThrow, `setting value throws ${e}`);
}
is(setCallbackCount, shouldThrow ? 0 : 1, "setCallback count");
is(deleteCallbackCount, (oldLen > index) ? 1 : 0, "deleteCallback count");
is(b[index], shouldThrow ? oldValue : value, `property value`);
is(b.length, shouldThrow ? oldLen : Math.max(oldLen, index + 1), `length of observable array`);
});
});
add_task(function testObservableArray_helper_replaceElementAt_callback_throw() {
let setCallbackCount = 0;
let deleteCallbackCount = 0;
let m = new TestInterfaceObservableArray({
setBooleanCallback(value) {
setCallbackCount++;
if (value) {
throw new Error("setBooleanCallback");
}
},
deleteBooleanCallback(value, index) {
deleteCallbackCount++;
if (index < 2) {
throw new Error("deleteBooleanCallback");
}
},
});
m.observableArrayBoolean = [false, false, false];
let b = m.observableArrayBoolean;
ok(Array.isArray(b), "observable array should be an array type");
is(b.length, 3, "length of observable array should be 3");
[
// [index, value, shouldThrow]
[b.length, true, true],
[b.length, false, false],
[b.length, true, true],
[0, false, true],
[0, true, true]
].forEach(function([index, value, shouldThrow]) {
// Initialize
let oldValue = b[index];
let oldLen = b.length;
setCallbackCount = 0;
deleteCallbackCount = 0;
// Test
info(`setting value of property ${index} to ${value}`);
try {
m.booleanReplaceElementAtInternal(index, value);
ok(!shouldThrow, `setting value should not throw`);
} catch(e) {
ok(shouldThrow, `setting value throws ${e}`);
}
is(setCallbackCount, (shouldThrow && index < 2) ? 0 : 1, "setCallback count");
is(deleteCallbackCount, (oldLen > index) ? 1 : 0, "deleteCallback count");
is(b[index], shouldThrow ? oldValue : value, "property value");
is(b.length, shouldThrow ? oldLen : Math.max(oldLen, index + 1), `length of observable array`);
});
});
add_task(function testObservableArray_helper_appendElement() {
let setCallbackCount = 0;
let deleteCallbackCount = 0;
let setCallbackTests = null;
let m = new TestInterfaceObservableArray({
setBooleanCallback(value, index) {
setCallbackCount++;
if (typeof setCallbackTests === 'function') {
setCallbackTests(value, index);
}
},
deleteBooleanCallback() {
deleteCallbackCount++;
},
});
let b = m.observableArrayBoolean;
ok(Array.isArray(b), "observable array should be an array type");
is(b.length, 0, "length of observable array should be 0");
[true, false, true, false].forEach(function(value) {
// Initialize
let oldLen = b.length;
let index = oldLen;
setCallbackCount = 0;
deleteCallbackCount = 0;
setCallbackTests = function(_value, _index) {
info(`set callback for ${_index}`);
is(_value, value, "setCallbackTests: test value argument");
is(_index, index, "setCallbackTests: test index argument");
};
// Test
info(`append ${value}`);
try {
m.booleanAppendElementInternal(value);
ok(true, `appending value should not throw`);
} catch(e) {
ok(false, `appending value throws ${e}`);
}
is(setCallbackCount, 1, "setCallback should be called");
is(deleteCallbackCount, 0, "deleteCallback should not be called");
is(b[index], value, `property value`);
is(b.length, oldLen + 1, `length of observable array`);
});
});
add_task(function testObservableArray_helper_appendElement_callback_throw() {
let setCallbackCount = 0;
let deleteCallbackCount = 0;
let m = new TestInterfaceObservableArray({
setBooleanCallback(value) {
setCallbackCount++;
if (value) {
throw new Error("setBooleanCallback");
}
},
deleteBooleanCallback() {
deleteCallbackCount++;
},
});
m.observableArrayBoolean = [false, false, false];
let b = m.observableArrayBoolean;
ok(Array.isArray(b), "observable array should be an array type");
is(b.length, 3, "length of observable array should be 3");
[true, false, true, false].forEach(function(value) {
// Initialize
let oldLen = b.length;
let index = oldLen;
let oldValue = b[index];
let shouldThrow = value;
setCallbackCount = 0;
deleteCallbackCount = 0;
// Test
info(`append ${value}`);
try {
m.booleanAppendElementInternal(value);
ok(!shouldThrow, `appending value should not throw`);
} catch(e) {
ok(shouldThrow, `appending value throws ${e}`);
}
is(setCallbackCount, 1, "setCallback should be called");
is(deleteCallbackCount, 0, "deleteCallback should not be called");
is(b[index], shouldThrow ? oldValue : value, "property value");
is(b.length, shouldThrow ? oldLen : oldLen + 1, `length of observable array`);
});
});
add_task(function testObservableArray_helper_removeLastElement() {
let setCallbackCount = 0;
let deleteCallbackCount = 0;
let deleteCallbackTests = null;
let m = new TestInterfaceObservableArray({
setBooleanCallback() {
setCallbackCount++;
},
deleteBooleanCallback(value, index) {
deleteCallbackCount++;
if (typeof deleteCallbackTests === 'function') {
deleteCallbackTests(value, index);
}
},
});
m.observableArrayBoolean = [true, false, true, false];
let b = m.observableArrayBoolean;
ok(Array.isArray(b), "observable array should be an array type");
is(b.length, 4, "length of observable array should be 4");
let oldValues = b.slice();
while (oldValues.length) {
// Initialize
let oldValue = oldValues.pop();
let index = oldValues.length;
setCallbackCount = 0;
deleteCallbackCount = 0;
deleteCallbackTests = function(_value, _index) {
info(`delete callback for ${_index}`);
is(_value, oldValue, "deleteCallbackTests: test value argument");
is(_index, index, "deleteCallbackTests: test index argument");
};
// Test
info(`remove last element`);
try {
m.booleanRemoveLastElementInternal();
ok(true, `removing last element should not throw`);
} catch(e) {
ok(false, `removing last element throws ${e}`);
}
is(setCallbackCount, 0, "setCallback should not be called");
is(deleteCallbackCount, 1, "deleteCallback should be called");
isDeeply(b, oldValues, `property value`);
is(b.length, oldValues.length, `length of observable array`);
}
// test when array is empty
setCallbackCount = 0;
deleteCallbackCount = 0;
SimpleTest.doesThrow(() => {
m.booleanRemoveLastElementInternal();
}, `removing last element should throw when array is empty`);
is(setCallbackCount, 0, "setCallback should not be called");
is(deleteCallbackCount, 0, "deleteCallback should not be called");
is(b.length, 0, `length of observable array`);
});
add_task(function testObservableArray_helper_removeLastElement_callback_throw() {
let setCallbackCount = 0;
let deleteCallbackCount = 0;
let m = new TestInterfaceObservableArray({
setBooleanCallback() {
setCallbackCount++;
},
deleteBooleanCallback(value) {
deleteCallbackCount++;
if (value) {
throw new Error("deleteBooleanCallback");
}
},
});
m.observableArrayBoolean = [false, true, false, false];
let b = m.observableArrayBoolean;
ok(Array.isArray(b), "observable array should be an array type");
is(b.length, 4, "length of observable array should be 4");
let shouldThrow = false;
while (!shouldThrow && b.length) {
// Initialize
let oldValues = b.slice();
let oldLen = b.length;
shouldThrow = oldValues[oldLen - 1];
setCallbackCount = 0;
deleteCallbackCount = 0;
// Test
info(`remove last element`);
try {
m.booleanRemoveLastElementInternal();
ok(!shouldThrow, `removing last element should not throw`);
} catch(e) {
ok(shouldThrow, `removing last element throws ${e}`);
}
is(setCallbackCount, 0, "setCallback should not be called");
is(deleteCallbackCount, 1, "deleteCallback should be called");
isDeeply(b, shouldThrow ? oldValues : oldValues.slice(0, oldLen - 1), `property value`);
is(b.length, shouldThrow ? oldLen : oldLen - 1, `length of observable array`);
}
});
add_task(function testObservableArray_helper_length() {
let m = new TestInterfaceObservableArray();
let b = m.observableArrayBoolean;
ok(Array.isArray(b), "observable array should be an array type");
is(b.length, 0, "length of observable array");
[
[false, true, false, true],
[true, false],
[false, true, false],
].forEach(function(values) {
m.observableArrayBoolean = values;
is(b.length, m.booleanLengthInternal(), "length helper function");
});
});
</script>
</body>
</html>