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qqmusicunlock/src/decrypt/qmc.test.ts

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import fs from "fs";
import {QmcDecoder} from "@/decrypt/qmc";
import {BytesEqual} from "@/decrypt/utils";
function loadTestDataDecoder(name: string): {
cipherText: Uint8Array,
clearText: Uint8Array
} {
const cipherBody = fs.readFileSync(`./testdata/${name}_raw.bin`);
const cipherSuffix = fs.readFileSync(`./testdata/${name}_suffix.bin`);
const cipherText = new Uint8Array(cipherBody.length + cipherSuffix.length);
cipherText.set(cipherBody);
cipherText.set(cipherSuffix, cipherBody.length);
return {
cipherText,
clearText: fs.readFileSync(`testdata/${name}_target.bin`)
}
}
test("qmc: real file", async () => {
const cases = ["mflac0_rc4", "mflac_map", "mgg_map", "qmc0_static"]
for (const name of cases) {
const {clearText, cipherText} = loadTestDataDecoder(name)
const c = new QmcDecoder(cipherText)
const buf = c.decrypt()
expect(BytesEqual(buf, clearText)).toBeTruthy()
}
})