// @tags: [
//   # The test runs commands that are not allowed with security token: setParameter.
//   not_allowed_with_signed_security_token,
//   assumes_superuser_permissions,
//   does_not_support_stepdowns,
// ]

// Tests that using setParameter to update the parameter 'automationServiceDescriptor' causes a
// field with that name to be echoed back in hello. See SERVER-18399 for more details.

// Run hello, and if it contains an automation service descriptor, save it, so we can restore
// it later. If it wasn't set, original will just be undefined.
let res = assert.commandWorked(db.runCommand({hello: 1}));
let original = res.automationServiceDescriptor;

// Try to set the descriptor to an invalid value: only strings are supported.
assert.commandFailedWithCode(
    db.adminCommand({setParameter: 1, automationServiceDescriptor: 0}),
    ErrorCodes.TypeMismatch,
);

// Try to set the descriptor to an invalid value: Only 64 characters are allowed.
assert.commandFailedWithCode(
    db.adminCommand({
        setParameter: 1,
        automationServiceDescriptor: "1234567812345678123456781234567812345678123456781234567812345678X",
    }),
    ErrorCodes.Overflow,
);

// Short strings are okay.
res = assert.commandWorked(db.adminCommand({setParameter: 1, automationServiceDescriptor: "some_service"}));

// Verify that the setParameter 'was' field contains what we expected.
if (original) assert.eq(original, res.was);

// Verify that the 'some_service' string is now echoed back to us in hello
res = assert.commandWorked(db.runCommand({hello: 1}));
assert.eq(res.automationServiceDescriptor, "some_service");

// Verify that setting the descriptor to the empty string is ok, and prevents it from being
// echoed back
assert.commandWorked(db.adminCommand({setParameter: 1, automationServiceDescriptor: ""}));
res = assert.commandWorked(db.runCommand({hello: 1}));
assert(!res.hasOwnProperty("automationServiceDescriptor"));

// Verify that the shell has the correct prompt.
let originalPrompt = db.getMongo().promptPrefix;
assert.commandWorked(db.adminCommand({setParameter: 1, automationServiceDescriptor: "set"}));
db.getMongo().promptPrefix = undefined;
assert(/\[automated\]/.test(defaultPrompt()));

// Restore whatever was there originally.
if (!original) original = "";
assert.commandWorked(db.adminCommand({setParameter: 1, automationServiceDescriptor: original}));
db.getMongo().promptPrefix = originalPrompt;