grpc-node/packages/grpc-js-xds/test/test-cidr.ts

165 lines
3.8 KiB
TypeScript

/*
* Copyright 2023 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
import assert = require('assert');
import { CidrRange, formatIPv4, formatIPv6, normalizeCidrRange, parseIPv4, parseIPv6 } from '../src/cidr';
describe('parseIPv4 and formatIPv4', () => {
describe('Should transform as expected', () => {
const TEST_CASES = [
{
address: '0.0.0.0',
parsed: 0n
},
{
address: '255.255.255.255',
parsed: 0xffffffffn
},
{
address: '10.0.0.1',
parsed: 0x0a000001n
},
{
address: '10.0.0.0',
parsed: 0x0a000000n
},
{
address: '192.168.0.1',
parsed: 0xc0a80001n
},
{
address: '192.168.0.0',
parsed: 0xc0a80000n
}
];
for (const {address, parsed} of TEST_CASES) {
it(address, () => {
assert.strictEqual(parseIPv4(address), parsed);
assert.strictEqual(formatIPv4(parsed), address);
});
}
});
});
describe('parseIPv6 and formatIPv6', () => {
describe('Should transform as expected', () => {
const TEST_CASES = [
{
address: '::',
parsed: 0n
},
{
address: 'ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff',
parsed: 0xffffffffffffffffffffffffffffffffn
},
{
address: '::1',
parsed: 1n
},
// The example address in the IPv6 Wikipedia article
{
address: '2001:db8::ff00:42:8329',
parsed: 0x20010db8000000000000ff0000428329n
}
];
for (const {address, parsed} of TEST_CASES) {
it(address, () => {
assert.strictEqual(parseIPv6(address), parsed);
assert.strictEqual(formatIPv6(parsed), address);
});
}
});
});
describe('CIDR range normalization', () => {
const TEST_CASES: {input: CidrRange, output: CidrRange}[] = [
{
input: {
addressPrefix: '192.168.0.0',
prefixLen: 24
},
output: {
addressPrefix: '192.168.0.0',
prefixLen: 24
},
},
{
input: {
addressPrefix: '192.168.0.128',
prefixLen: 24
},
output: {
addressPrefix: '192.168.0.0',
prefixLen: 24
},
},
{
input: {
addressPrefix: '192.168.0.1',
prefixLen: 24
},
output: {
addressPrefix: '192.168.0.0',
prefixLen: 24
},
},
{
input: {
addressPrefix: '192.168.0.1',
prefixLen: -1
},
output: {
addressPrefix: '0.0.0.0',
prefixLen: 0
},
},
{
input: {
addressPrefix: '192.168.0.1',
prefixLen: 33
},
output: {
addressPrefix: '192.168.0.1',
prefixLen: 32
},
},
{
input: {
addressPrefix: 'fe80::',
prefixLen: 10
},
output: {
addressPrefix: 'fe80::',
prefixLen: 10
},
},
{
input: {
addressPrefix: 'fe80::1',
prefixLen: 10
},
output: {
addressPrefix: 'fe80::',
prefixLen: 10
},
},
];
for (const {input, output} of TEST_CASES) {
it(`${input.addressPrefix}/${input.prefixLen} -> ${output.addressPrefix}/${output.prefixLen}`, () => {
assert.deepStrictEqual(normalizeCidrRange(input), output);
})
}
});