fix

book/node_modules/error/test/index.js

@@ -0,0 +1,4 @@
+'use strict';
+
+require('./typed.js');
+require('./wrapped.js');

book/node_modules/error/test/typed.js

@@ -0,0 +1,45 @@
+'use strict';
+
+var test = require('tape');
+
+var TypedError = require('../typed.js');
+
+test('a server error', function t(assert) {
+    var ServerError = TypedError({
+        type: 'server.5xx.error',
+        message: '{title} server error, status={statusCode}'
+    });
+
+    var error = ServerError({
+        title: 'some title',
+        statusCode: 500
+    });
+
+    assert.equal(ServerError.type, 'server.5xx.error');
+
+    assert.equal(error.type, 'server.5xx.error');
+    assert.equal(error.fullType, 'server.5xx.error');
+    assert.equal(error.statusCode, 500);
+    assert.equal(error.message, 'some title server error, status=500');
+
+    assert.end();
+});
+
+test('a client error', function t(assert) {
+    var ClientError = TypedError({
+        type: 'client.4xx.error',
+        message: '{title} client error, status={statusCode}'
+    });
+
+    var error2 = ClientError({
+        title: 'some title',
+        statusCode: 404
+    });
+
+    assert.equal(error2.type, 'client.4xx.error');
+    assert.equal(error2.fullType, 'client.4xx.error');
+    assert.equal(error2.statusCode, 404);
+    assert.equal(error2.message, 'some title client error, status=404');
+
+    assert.end();
+});

book/node_modules/error/test/wrapped.js

@@ -0,0 +1,182 @@
+'use strict';
+
+var test = require('tape');
+var net = require('net');
+
+var WrappedError = require('../wrapped.js');
+
+test('can create a wrapped error', function t(assert) {
+    var ServerListenError = WrappedError({
+        message: 'server: {causeMessage}',
+        type: 'server.listen-failed',
+        requestedPort: null,
+        host: null
+    });
+
+    var err = new Error('listen EADDRINUSE');
+    err.code = 'EADDRINUSE';
+
+    var err2 = ServerListenError(err, {
+        requestedPort: 3426,
+        host: 'localhost'
+    });
+
+    assert.equal(ServerListenError.type, 'server.listen-failed');
+
+    assert.equal(err2.message, 'server: listen EADDRINUSE');
+    assert.equal(err2.requestedPort, 3426);
+    assert.equal(err2.host, 'localhost');
+    assert.equal(err2.code, 'EADDRINUSE');
+
+    assert.equal(err2.cause, err);
+
+    assert.equal(err2.toString(),
+        'ServerListenFailedError: server: listen EADDRINUSE');
+
+    assert.equal(JSON.stringify(err2), JSON.stringify({
+        type: 'server.listen-failed',
+        message: 'server: listen EADDRINUSE',
+        requestedPort: 3426,
+        host: 'localhost',
+        name: 'ServerListenFailedError',
+        causeMessage: 'listen EADDRINUSE',
+        origMessage: 'listen EADDRINUSE',
+        code: 'EADDRINUSE',
+        fullType: 'server.listen-failed~!~error.wrapped-unknown'
+    }));
+
+    assert.end();
+});
+
+test('can create wrapped error with syscall', function t(assert) {
+    var SysCallError = WrappedError({
+        'message': 'tchannel socket error ({code} from ' +
+            '{syscall}): {origMessage}',
+        type: 'syscall.error'
+    });
+
+    var err = new Error('listen EADDRINUSE');
+    err.code = 'EADDRINUSE';
+    err.syscall = 'listen';
+
+    var err2 = SysCallError(err);
+
+    assert.equal(err2.message, 'tchannel socket error ' +
+        '(EADDRINUSE from listen): listen EADDRINUSE');
+    assert.equal(err2.syscall, 'listen');
+    assert.equal(err2.code, 'EADDRINUSE');
+    assert.equal(err2.type, 'syscall.error');
+
+    assert.end();
+});
+
+test('wrapping twice', function t(assert) {
+    var ReadError = WrappedError({
+        type: 'my.read-error',
+        message: 'read: {causeMessage}'
+    });
+
+    var DatabaseError = WrappedError({
+        type: 'my.database-error',
+        message: 'db: {causeMessage}'
+    });
+
+    var BusinessError = WrappedError({
+        type: 'my.business-error',
+        message: 'business: {causeMessage}'
+    });
+
+    var err = BusinessError(
+        DatabaseError(
+            ReadError(
+                new Error('oops')
+            )
+        )
+    );
+    assert.ok(err);
+
+    assert.equal(err.message, 'business: db: read: oops');
+    assert.equal(err.type, 'my.business-error');
+    assert.equal(err.fullType, 'my.business-error~!~' +
+        'my.database-error~!~' +
+        'my.read-error~!~' +
+        'error.wrapped-unknown');
+
+    assert.end();
+});
+
+test('handles bad recursive strings', function t(assert) {
+    var ReadError = WrappedError({
+        type: 'wat.wat',
+        message: 'read: {causeMessage}'
+    });
+
+    var err2 = ReadError(new Error('hi {causeMessage}'));
+
+    assert.ok(err2);
+    assert.equal(err2.message,
+        'read: hi $INVALID_CAUSE_MESSAGE_LITERAL');
+
+    assert.end();
+});
+
+test('can wrap real IO errors', function t(assert) {
+    var ServerListenError = WrappedError({
+        message: 'server: {causeMessage}',
+        type: 'server.listen-failed',
+        requestedPort: null,
+        host: null
+    });
+
+    var otherServer = net.createServer();
+    otherServer.once('listening', onPortAllocated);
+    otherServer.listen(0);
+
+    function onPortAllocated() {
+        var port = otherServer.address().port;
+
+        var server = net.createServer();
+        server.on('error', onError);
+
+        server.listen(port);
+
+        function onError(cause) {
+            var err = ServerListenError(cause, {
+                host: 'localhost',
+                requestedPort: port
+            });
+
+            otherServer.close();
+            assertOnError(err, cause, port);
+        }
+    }
+
+    function assertOnError(err, cause, port) {
+        assert.equal(err.message, 'server: listen EADDRINUSE');
+        assert.equal(err.requestedPort, port);
+        assert.equal(err.host, 'localhost');
+        assert.equal(err.code, 'EADDRINUSE');
+
+        assert.equal(err.cause, cause);
+
+        assert.equal(err.toString(),
+            'ServerListenFailedError: server: listen EADDRINUSE');
+
+        assert.equal(JSON.stringify(err), JSON.stringify({
+            type: 'server.listen-failed',
+            message: 'server: listen EADDRINUSE',
+            requestedPort: port,
+            host: 'localhost',
+            name: 'ServerListenFailedError',
+            causeMessage: 'listen EADDRINUSE',
+            origMessage: 'listen EADDRINUSE',
+            code: 'EADDRINUSE',
+            errno: 'EADDRINUSE',
+            syscall: 'listen',
+            fullType: 'server.listen-failed~!~' +
+                'error.wrapped-io.listen.EADDRINUSE'
+        }));
+
+        assert.end();
+    }
+});