Function define_tests

test/fixtures/wpt/WebCryptoAPI/derive_bits_keys/hkdf.js:2–278

()

function define_tests() {
    // May want to test prefixed implementations.
    var subtle = self.crypto.subtle;

    // hkdf2_vectors sets up test data with the correct derivations for each
    // test case.
    var testData = getTestData();
    var derivedKeys = testData.derivedKeys;
    var salts = testData.salts;
    var derivations = testData.derivations;
    var infos = testData.infos;

    // What kinds of keys can be created with deriveKey? The following:
    var derivedKeyTypes = testData.derivedKeyTypes;

    return setUpBaseKeys(derivedKeys)
    .then(function(allKeys) {
        // We get several kinds of base keys. Normal ones that can be used for
        // derivation operations, ones that lack the deriveBits usage, ones
        // that lack the deriveKeys usage, and one key that is for the wrong
        // algorithm (not HKDF in this case).
        var baseKeys = allKeys.baseKeys;
        var noBits = allKeys.noBits;
        var noKey = allKeys.noKey;
        var wrongKey = allKeys.wrongKey;

        // Test each combination of derivedKey size, salt size, hash function,
        // and number of iterations. The derivations object is structured in
        // that way, so navigate it to run tests and compare with correct results.
        Object.keys(derivations).forEach(function(derivedKeySize) {
            Object.keys(derivations[derivedKeySize]).forEach(function(saltSize) {
                Object.keys(derivations[derivedKeySize][saltSize]).forEach(function(hashName) {
                    Object.keys(derivations[derivedKeySize][saltSize][hashName]).forEach(function(infoSize) {
                        var testName = derivedKeySize + " derivedKey, " + saltSize + " salt, " + hashName + ", with " + infoSize + " info";
                        var algorithm = {name: "HKDF", salt: salts[saltSize], info: infos[infoSize], hash: hashName};

                        // Check for correct deriveBits result
                        subsetTest(promise_test, function(test) {
                            return subtle.deriveBits(algorithm, baseKeys[derivedKeySize], 256)
                            .then(function(derivation) {
                                assert_true(equalBuffers(derivation, derivations[derivedKeySize][saltSize][hashName][infoSize]), "Derived correct key");
                            }, function(err) {
                                assert_unreached("deriveBits failed with error " + err.name + ": " + err.message);
                            });
                        }, testName);

                        // 0 length
                        subsetTest(promise_test, function(test) {
                            return subtle.deriveBits(algorithm, baseKeys[derivedKeySize], 0)
                            .then(function(derivation) {
                                assert_equals(derivation.byteLength, 0, "Derived correctly empty key");
                            }, function(err) {
                                assert_unreached("deriveBits failed with error " + err.name + ": " + err.message);
                            });
                        }, testName + " with 0 length");

                        // Check for correct deriveKey results for every kind of
                        // key that can be created by the deriveKeys operation.
                        derivedKeyTypes.forEach(function(derivedKeyType) {