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test: remove internal error tests
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These tests tested internal functionality in a way that bypassed all
code that could reach these cases. It gives a false feeling of safety
that some code works as intended while there is no guarantee that
it indeed works as it should.

Therefore it seemed best to remove all of these. The only thing that
should be tested is the raw functionality of the internal errors.

PR-URL: nodejs#26752
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
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@BridgeAR
BridgeAR committed Mar 21, 2019
1 parent 0622ce6 commit df0870d
Showing 1 changed file with 5 additions and 130 deletions.
135 changes: 5 additions & 130 deletions test/parallel/test-internal-errors.js
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,6 @@ const {
restoreStdout,
} = require('../common/hijackstdio');

const { internalBinding } = require('internal/test/binding');
const assert = require('assert');
const errors = require('internal/errors');

Expand Down Expand Up @@ -101,125 +100,11 @@ common.expectsError(() => {
message: /\+ message: 'Error for testing purposes: a',\n- message: \/\^Error/
});

// Test ERR_INVALID_FD_TYPE
assert.strictEqual(errors.getMessage('ERR_INVALID_FD_TYPE', ['a']),
'Unsupported fd type: a');

// Test ERR_INVALID_URL_SCHEME
assert.strictEqual(errors.getMessage('ERR_INVALID_URL_SCHEME', ['file']),
'The URL must be of scheme file');
assert.strictEqual(errors.getMessage('ERR_INVALID_URL_SCHEME', [['file']]),
'The URL must be of scheme file');
assert.strictEqual(errors.getMessage('ERR_INVALID_URL_SCHEME',
[['http', 'ftp']]),
'The URL must be one of scheme http or ftp');
assert.strictEqual(errors.getMessage('ERR_INVALID_URL_SCHEME',
[['a', 'b', 'c']]),
'The URL must be one of scheme a, b, or c');
common.expectsError(
() => errors.getMessage('ERR_INVALID_URL_SCHEME', [[]]),
{
code: 'ERR_ASSERTION',
type: assert.AssertionError,
message: /^At least one expected value needs to be specified$/
});

// Test ERR_MISSING_ARGS
assert.strictEqual(errors.getMessage('ERR_MISSING_ARGS', ['name']),
'The "name" argument must be specified');
assert.strictEqual(errors.getMessage('ERR_MISSING_ARGS', ['name', 'value']),
'The "name" and "value" arguments must be specified');
assert.strictEqual(errors.getMessage('ERR_MISSING_ARGS', ['a', 'b', 'c']),
'The "a", "b", and "c" arguments must be specified');

// Test ERR_SOCKET_BAD_PORT
assert.strictEqual(
errors.getMessage('ERR_SOCKET_BAD_PORT', [0]),
'Port should be >= 0 and < 65536. Received 0.');

// Test ERR_TLS_CERT_ALTNAME_INVALID
assert.strictEqual(
errors.getMessage('ERR_TLS_CERT_ALTNAME_INVALID', ['altname']),
'Hostname/IP does not match certificate\'s altnames: altname');

assert.strictEqual(
errors.getMessage('ERR_INVALID_PROTOCOL', ['bad protocol', 'http']),
'Protocol "bad protocol" not supported. Expected "http"'
);

assert.strictEqual(
errors.getMessage('ERR_HTTP_HEADERS_SENT', ['render']),
'Cannot render headers after they are sent to the client'
);

assert.strictEqual(
errors.getMessage('ERR_INVALID_HTTP_TOKEN', ['Method', 'foo']),
'Method must be a valid HTTP token ["foo"]'
);

assert.strictEqual(
errors.getMessage('ERR_OUT_OF_RANGE', ['A', 'some values', 'B']),
'The value of "A" is out of range. It must be some values. Received B'
);

assert.strictEqual(
errors.getMessage('ERR_UNESCAPED_CHARACTERS', ['Request path']),
'Request path contains unescaped characters'
);

// Test ERR_DNS_SET_SERVERS_FAILED
assert.strictEqual(
errors.getMessage('ERR_DNS_SET_SERVERS_FAILED', ['err', 'servers']),
'c-ares failed to set servers: "err" [servers]');

// Test ERR_ENCODING_NOT_SUPPORTED
assert.strictEqual(
errors.getMessage('ERR_ENCODING_NOT_SUPPORTED', ['enc']),
'The "enc" encoding is not supported');

// Test error messages for async_hooks
assert.strictEqual(
errors.getMessage('ERR_ASYNC_CALLBACK', ['init']),
'init must be a function');
assert.strictEqual(
errors.getMessage('ERR_ASYNC_TYPE', [{}]),
'Invalid name for async "type": [object Object]');
assert.strictEqual(
errors.getMessage('ERR_INVALID_ASYNC_ID', ['asyncId', undefined]),
'Invalid asyncId value: undefined');

{
const { kMaxLength } = internalBinding('buffer');
const error = new errors.codes.ERR_BUFFER_TOO_LARGE();
assert.strictEqual(
error.message,
`Cannot create a Buffer larger than 0x${kMaxLength.toString(16)} bytes`
);
}

{
const error = new errors.codes.ERR_INVALID_ARG_VALUE('foo', '\u0000bar');
assert.strictEqual(
error.message,
'The argument \'foo\' is invalid. Received \'\\u0000bar\''
);
}

{
const error = new errors.codes.ERR_INVALID_ARG_VALUE(
'foo', { a: 1 }, 'must have property \'b\''
);
assert.strictEqual(
error.message,
'The argument \'foo\' must have property \'b\'. Received { a: 1 }'
);
}

// Test that `code` property is mutable and that changing it does not change the
// name.
{
const myError = new errors.codes.ERR_TLS_HANDSHAKE_TIMEOUT();
assert.strictEqual(myError.code, 'ERR_TLS_HANDSHAKE_TIMEOUT');
const myError = new errors.codes.TEST_ERROR_1('foo');
assert.strictEqual(myError.code, 'TEST_ERROR_1');
assert.strictEqual(myError.hasOwnProperty('code'), false);
assert.strictEqual(myError.hasOwnProperty('name'), false);
assert.deepStrictEqual(Object.keys(myError), []);
Expand All @@ -228,15 +113,15 @@ assert.strictEqual(
assert.strictEqual(myError.code, 'FHQWHGADS');
assert.strictEqual(myError.name, initialName);
assert.deepStrictEqual(Object.keys(myError), ['code']);
assert.ok(myError.name.includes('ERR_TLS_HANDSHAKE_TIMEOUT'));
assert.ok(myError.name.includes('TEST_ERROR_1'));
assert.ok(!myError.name.includes('FHQWHGADS'));
}

// Test that `name` is mutable and that changing it alters `toString()` but not
// `console.log()` results, which is the behavior of `Error` objects in the
// browser. Note that `name` becomes enumerable after being assigned.
{
const myError = new errors.codes.ERR_TLS_HANDSHAKE_TIMEOUT();
const myError = new errors.codes.TEST_ERROR_1('foo');
assert.deepStrictEqual(Object.keys(myError), []);
const initialToString = myError.toString();

Expand All @@ -251,7 +136,7 @@ assert.strictEqual(
{
let initialConsoleLog = '';
hijackStdout((data) => { initialConsoleLog += data; });
const myError = new errors.codes.ERR_TLS_HANDSHAKE_TIMEOUT();
const myError = new errors.codes.TEST_ERROR_1('foo');
assert.deepStrictEqual(Object.keys(myError), []);
const initialToString = myError.toString();
console.log(myError);
Expand All @@ -269,13 +154,3 @@ assert.strictEqual(

restoreStdout();
}

{
const error = new errors.codes.ERR_WORKER_INVALID_EXEC_ARGV(
['--foo, --bar']
);
assert.strictEqual(
error.message,
'Initiated Worker with invalid execArgv flags: --foo, --bar'
);
}

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