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<!DOCTYPE html>
<meta charset="utf-8">
<title>KV Storage: entries() trickier tests</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script type="module">
import { testWithArea } from "./helpers/kvs-tests.js";
import * as classAssert from "./helpers/class-assert.js";
import {
assertAsyncIteratorEquals,
assertAsyncIteratorCustomEquals,
assertArrayCustomEquals,
assertEqualPostKeyRoundtripping
} from "./helpers/equality-asserters.js";
function assertEqualsArrayOrUndefined(actual, expected, label) {
if (expected === undefined) {
return assert_equals(actual, expected, label);
}
return assert_array_equals(actual, expected, label);
}
testWithArea(async area => {
await area.set(1, "value 1");
await area.set(2, "value 2");
await area.set(3, "value 3");
await assertAsyncIteratorCustomEquals(
area.entries(),
[[1, "value 1"], [2, "value 2"], [3, "value 3"]],
assert_array_equals
);
}, "Using for-await-of to collect the results works");
testWithArea(async area => {
// We're not testing every key type since this isn't a test of IndexedDB.
await area.set(1, "value 1");
await area.set(new Date(500), "value date 500");
await area.set(-1, "value -1");
await area.set(new Date(-20), "value date -20");
await area.set("aaa", "value aaa");
await area.set("a", "value a");
await area.set(-Infinity, "value -Infinity");
await assertAsyncIteratorCustomEquals(
area.entries(),
[
[-Infinity, "value -Infinity"],
[-1, "value -1"],
[1, "value 1"],
[new Date(-20), "value date -20"],
[new Date(500), "value date 500"],
["a", "value a"],
["aaa", "value aaa"]
],
(actual, expected, label) => {
return assertArrayCustomEquals(actual, expected, assertEqualPostKeyRoundtripping, label);
}
);
}, "Results are returned in IndexedDB order");
testWithArea(async area => {
await area.set(1, "value 1");
await area.set(2, "value 2");
await area.set(3, "value 3");
const iter = area.entries();
const iterResults = [
await iter.next(),
await iter.next(),
await iter.next(),
await iter.next(),
await iter.next(),
await iter.next()
];
classAssert.iterResultsCustom(
iterResults,
[
[[1, "value 1"], false],
[[2, "value 2"], false],
[[3, "value 3"], false],
[undefined, true],
[undefined, true],
[undefined, true]
],
assertEqualsArrayOrUndefined
);
}, "Manual testing of .next() calls, with awaiting");
testWithArea(async area => {
area.set(1, "value 1");
area.set(2, "value 2");
area.set(3, "value 3");
const iter = area.entries();
const promises = [
iter.next(),
iter.next(),
iter.next(),
iter.next(),
iter.next(),
iter.next()
];
const iterResults = await Promise.all(promises);
classAssert.iterResultsCustom(
iterResults,
[
[[1, "value 1"], false],
[[2, "value 2"], false],
[[3, "value 3"], false],
[undefined, true],
[undefined, true],
[undefined, true]
],
assertEqualsArrayOrUndefined
);
}, "Manual testing of .next() calls, no awaiting");
testWithArea(async area => {
await area.set(10, "value 10");
await area.set(20, "value 20");
await area.set(30, "value 30");
await area.set(40, "value 40");
let seen = [];
for await (const entry of area.entries()) {
seen.push(entry);
if (entry[0] === 20) {
await area.set(15, "value 15");
}
}
assertArrayCustomEquals(
seen,
[[10, "value 10"], [20, "value 20"], [30, "value 30"], [40, "value 40"]],
assert_array_equals
);
}, "Inserting an entry before the current entry must have no effect on iteration");
testWithArea(async area => {
await area.set(10, "value 10");
await area.set(20, "value 20");
await area.set(30, "value 30");
await area.set(40, "value 40");
let seen = [];
for await (const entry of area.entries()) {
seen.push(entry);
if (entry[0] === 20) {
await area.set(25, "value 25");
}
}
assertArrayCustomEquals(
seen,
[[10, "value 10"], [20, "value 20"], [25, "value 25"], [30, "value 30"], [40, "value 40"]],
assert_array_equals
);
}, "Inserting an entry after the current entry must show up in iteration");
testWithArea(async area => {
await area.set(10, "value 10");
await area.set(20, "value 20");
await area.set(30, "value 30");
await area.set(40, "value 40");
let seen = [];
for await (const entry of area.entries()) {
seen.push(entry);
if (entry[0] === 20) {
await area.delete(10);
}
}
assertArrayCustomEquals(
seen,
[[10, "value 10"], [20, "value 20"], [30, "value 30"], [40, "value 40"]],
assert_array_equals
);
}, "Deleting an entry before the current entry must have no effect on iteration");
testWithArea(async area => {
await area.set(10, "value 10");
await area.set(20, "value 20");
await area.set(30, "value 30");
await area.set(40, "value 40");
let seen = [];
for await (const entry of area.entries()) {
seen.push(entry);
if (entry[0] === 20) {
await area.delete(20);
}
}
assertArrayCustomEquals(
seen,
[[10, "value 10"], [20, "value 20"], [30, "value 30"], [40, "value 40"]],
assert_array_equals
);
}, "Deleting the current entry must have no effect on iteration");
testWithArea(async area => {
await area.set(10, "value 10");
await area.set(20, "value 20");
await area.set(30, "value 30");
await area.set(40, "value 40");
let seen = [];
for await (const entry of area.entries()) {
seen.push(entry);
if (entry[0] === 20) {
await area.delete(30);
}
}
assertArrayCustomEquals(
seen,
[[10, "value 10"], [20, "value 20"], [40, "value 40"]],
assert_array_equals
);
}, "Deleting an entry after the current entry must show up in iteration");
testWithArea(async area => {
await area.set(10, "value 10");
await area.set(20, "value 20");
await area.set(30, "value 30");
await area.set(40, "value 40");
let seen = [];
for await (const entry of area.entries()) {
seen.push(entry);
if (entry[0] === 20) {
await area.set(10, "value 10, but changed!!");
}
}
assertArrayCustomEquals(
seen,
[[10, "value 10"], [20, "value 20"], [30, "value 30"], [40, "value 40"]],
assert_array_equals
);
}, "Modifying a value before the current entry must have no effect on iteration");
testWithArea(async area => {
await area.set(10, "value 10");
await area.set(20, "value 20");
await area.set(30, "value 30");
await area.set(40, "value 40");
let seen = [];
for await (const entry of area.entries()) {
seen.push(entry);
if (entry[0] === 20) {
await area.set(20, "value 20, but changed!!");
}
}
assertArrayCustomEquals(
seen,
[[10, "value 10"], [20, "value 20"], [30, "value 30"], [40, "value 40"]],
assert_array_equals
);
}, "Modifying a value at the current entry must have no effect on iteration");
testWithArea(async area => {
await area.set(10, "value 10");
await area.set(20, "value 20");
await area.set(30, "value 30");
await area.set(40, "value 40");
let seen = [];
for await (const entry of area.entries()) {
seen.push(entry);
if (entry[0] === 20) {
await area.set(30, "value 30, but changed!!");
}
}
assertArrayCustomEquals(
seen,
[[10, "value 10"], [20, "value 20"], [30, "value 30, but changed!!"], [40, "value 40"]],
assert_array_equals
);
}, "Modifying a value after the current entry must show up in iteration");
</script>
|
