@quickcase/node-toolkit v0.18.0

node-toolkit

NodeJS toolkit for QuickCase.

Installing

npm i @quickcase/node-toolkit

Toolkit API

• Cache
• Case
• Case Access
• Config
• Definition
• Document
• Express
• Field
• HTTP Client
• OAuth2
• Redis Gateway
• Search
• Test

Cache

useCache(config)

Creates a new cache instance.

Arguments

config:

• ttlMs: Number. Time-to-live for cache in milliseconds, defaults to 30000 (30s)

Returns

Array with getter and setter functions for cache.

Example

import {useCache} from '@quickcase/node-toolkit';

const [getValue, setValue] = useCache({ttlMs: 5 * 1000});

setValue('key')('someValue');

const value = getValue('key'); // value = 'someValue'

Case

createCase(httpClient)(caseTypeId)(eventId)(payload)

Create a new case in QuickCase Data Store.

Arguments

payload:

• data: Optional object formed of key/value pairs of case fields for the new case
• summary: Optional short sentence justifying the case creation
• description: Optional longer explanation of the case creation

Returns

Promise resolved with the newly created case.

Example

import {createCase, httpClient} from '@quickcase/node-toolkit';

// A configured `httpClient` is required to create a case
const client = httpClient('http://data-store:4452')(() => Promise.resolve('access-token'));

const aCase = await createCase(client)('aCaseType')('anEvent')({
  data: {field1: 'value1'},
  summary: 'New case',
});
/*
{
  id: '1234123412341238',
  state: 'Created',
  data: {field1: 'value1'},
  ...
}
*/

fetchCase(httpClient)(caseId)()

Fetch a case from QuickCase Data Store.

Arguments

Returns

Promise resolved with the case matching the given identifier.

Example

import {fetchCase, httpClient} from '@quickcase/node-toolkit';

// A configured `httpClient` is required to fetch case
const client = httpClient('http://data-store:4452')(() => Promise.resolve('access-token'));

const aCase = await fetchCase(client)('1234123412341238')();
/*
{
  id: '1234123412341238',
  state: 'Active',
  data: {...},
  ...
}
*/

fieldExtractor(aCase)(path)

Extract the value of a field from the given case.

Arguments

Returns

• When path is a string: Value of the specified field; or undefined if path cannot be found in case data.
• When path is an array: An array of the same size, with extracted values in the same position as their respective path. Paths not found are extracted as undefined.
• When path is an object: An object of the same shape, with extracted values in place of the paths. Paths not found are extracted as undefined.

Example

import {fieldExtractor} from '@quickcase/node-toolkit';

const aCase = {
  id: '1234123412341234',
  state: 'Open',
  data: {
    complex1: { field1: 'value1' },
    field2: 'value2',
    collection3: [
      {id: '123', value: {field2: 'value3'}},
      {id: '456', value: {field2: 'value4'}},
    ]
  }
};

// Prepare fields for extraction
const fields = fieldExtractor(aCase);

// Extract single values
const value1 = fields('complex1.field1');
const value2 = fields('field2');

// Extract from collections
const value3 = fields('collection3[0].value.field2'); // By index
const value4 = fields('collection3[id:456].value.field2'); // By id

// Bulk extract as array
const values = fields(['complex1.field1', 'field2', 'field3']);
// ['value1', 'value2', undefined]

// Bulk extract as object
const values = fields({
  value1: 'complex1.field1',
  value2: 'field2',
  value3: 'field3',
});
// {value1: 'value1', value2: 'value2', value3: undefined}

isCaseIdentifier(identifier)

Validate that a string or number is a valid QuickCase identifier.

Arguments

Returns

true when identifier is valid (16 digits with correct check digit); false otherwise.

Example

import {isCaseIdentifier} from '@quickcase/node-toolkit';

isCaseIdentifier('1234') // > false - Not 16 digits
isCaseIdentifier('1234123412341234') // > false - Incorrect check digit
isCaseIdentifier('1234123412341238') // > true - Correct check digit

idTo36(identifier)

Encode case identifier to a base36 string representation.

Arguments

Returns

base36 string representing case identifier.

Example

import {idTo36} from '@quickcase/node-toolkit';

idTo36('1583178988495195') // > 0fl6udxa2qj

idFrom36(base36String)

Decode case identifier from a base36 string representation.

Arguments

Returns

string - case identifier converted from base36 string

Example

import {idFrom36} from '@quickcase/node-toolkit';

idFrom36('0fl6udxa2qj') // > '1583178988495195'

isCaseIdentifier36(base36String)

Validate if base36 string is a valid representation of a case identifier.

Arguments

Returns

true - when base36 string is a valid case identifier; false otherwise

Example

import {isCaseIdentifier36} from '@quickcase/node-toolkit';

isCaseIdentifier36('0fl6udxa2qj') // > true if the base36 string is a valid case identifier
isCaseIdentifier36('xa2qj') // > false if the base36 string is not a valid case identifier

updateCase(httpClient)(caseId)(eventId)(payload)

Update/progress an existing case in QuickCase Data Store.

Arguments

payload:

• data: Optional object formed of key/value pairs of case fields to add/edit the case
• summary: Optional short sentence justifying the case update
• description: Optional longer explanation of the case update

Returns

Promise resolved with the updated case.

Example

import {updateCase, httpClient} from '@quickcase/node-toolkit';

// A configured `httpClient` is required to create a case
const client = httpClient('http://data-store:4452')(() => Promise.resolve('access-token'));

const aCase = await updateCase(client)('1583178988495195')('anEvent')({
  data: {field1: 'value1'},
  summary: 'Updated case',
});
/*
{
  id: '1583178988495195',
  state: 'Updated',
  data: {field1: 'value1'},
  ...
}
*/

Case Access

grantGroupAccess(httpClient)(caseId)(groupId)(...caseRoles)

Grant access to a case to a group.

Arguments

Returns

Promise resolved when permissions updated.

Example

import {grantGroupAccess, httpClient} from '@quickcase/node-toolkit';

// A configured `httpClient` is required to update case permissions
const client = httpClient('http://data-store:4452')(() => Promise.resolve('access-token'));

await grantGroupAccess(client)('1234123412341238')('group-1')('[CREATOR]', '[OWNER]');

grantUserAccess(httpClient)(caseId)(userId)(...caseRoles)

Grant access to a case to a user.

Arguments

Returns

Promise resolved when permissions updated.

Example

import {grantUserAccess, httpClient} from '@quickcase/node-toolkit';

// A configured `httpClient` is required to update case permissions
const client = httpClient('http://data-store:4452')(() => Promise.resolve('access-token'));

await grantUserAccess(client)('1234123412341238')('user-1')('[CREATOR]', '[OWNER]');

revokeGroupAccess(httpClient)(caseId)(groupId)

Revoke access to a case from a group.

Arguments

Returns

Promise resolved when permissions updated.

Example

import {revokeGroupAccess, httpClient} from '@quickcase/node-toolkit';

// A configured `httpClient` is required to update case permissions
const client = httpClient('http://data-store:4452')(() => Promise.resolve('access-token'));

await revokeGroupAccess(client)('1234123412341238')('group-1');

revokeUserAccess(httpClient)(caseId)(userId)

Revoke access to a case from a user.

Arguments

Returns

Promise resolved when permissions updated.

Example

import {revokeUserAccess, httpClient} from '@quickcase/node-toolkit';

// A configured `httpClient` is required to update case permissions
const client = httpClient('http://data-store:4452')(() => Promise.resolve('access-token'));

await revokeUserAccess(client)('1234123412341238')('user-1');

Config

Utilities to deal with configuration objects.

camelConfig(config)

Recursively convert keys in configuration objects to camel case for consistency and ease of use.

Arguments

Returns

object with the same shape as config but for which all keys are now camel case. Values are preserved unaltered.

Example

import {camelConfig} from '@quickcase/node-toolkit';

const config = camelConfig({
  'a-prop-2': {
    'a_prop_21': undefined,
    'a-prop-22': 'override21',
  },
});

/*
{
  aProp2: {
    aProp21: 'value21',
    aProp22: 'override21',
  },
}
*/

mergeConfig(defaultConfig)(overrides)

Deep merge of a default configuration with partial overrides.

Arguments

Returns

object with the same shape as defaultConfig and containing the merged properties of defaultConfig and overrides.

Example

import {mergeConfig} from '@quickcase/node-toolkit';

const DEFAULT_CONFIG = {
  prop1: 'value1',
  prop2: {
    prop21: 'value21',
    prop22: 'value21',
    prop23: 'value23',
  },
  prop3: undefined,
};

const config = mergeConfig(DEFAULT_CONFIG)({
  prop2: {
    prop21: undefined,
    prop22: 'override21',
    prop23: null,
  }
});

/*
{
  prop1: 'value1',
  prop2: {
    prop21: 'value21',
    prop22: 'override21',
    prop23: null,
  },
  prop3: undefined,
}
*/

Definition

fetchCaseType(httpClient)(caseTypeId)()

Fetch a case type definition from QuickCase Definition Store.

Arguments

Returns

Promise resolved with case type definition.

Example

import {fetchCaseType, httpClient} from '@quickcase/node-toolkit';

// A configured `httpClient` is required to get a document
const client = httpClient('http://definition-store:4451')(() => Promise.resolve('access-token'));

const caseType = await fetchCaseType(client)('caseType1')();
/*
caseType:
{
  acls: [],
  case_fields: [],
  ...
}  
*/

Document

createDocument(httpclient)(metadata)

Creates a new document upload URL.

Arguments

metadata:

• filename: String. Custom name for the file, used to name downloads
• organisation: String. Organisation ID
• caseType: String. Case type ID
• case: String. Case 16-digit reference
• field: String. ID of a root field, or path to a nested field (eg. parent.field1)

Returns

Promise resolved with document upload.

Example

import {createDocument, httpClient} from '@quickcase/node-toolkit';

// A configured `httpClient` is required to create a document
const client = httpClient('http://document-store:3333')(() => Promise.resolve('access-token'));

const metadata = {
  filename: 'someFile.pdf',
  organisation: 'org1',
  caseType: 'caseType1',
  case: '1234123412341238',
  field: 'field1',
};
const docUpload = await createDocument(client)(metadata);
/*
docUpload:
{
  id: '123-123-123',
  upload_url: 'http://upload-url',
}  
*/

getDocument(httpclient)(docId)

Get a document download URL.

Arguments

Returns

Promise resolved with document download.

Example

import {getDocument, httpClient} from '@quickcase/node-toolkit';

// A configured `httpClient` is required to get a document
const client = httpClient('http://document-store:3333')(() => Promise.resolve('access-token'));

const docDownload = await getDocument(client)('123-123-123');
/*
docDownload:
{
  id: '123-123-123',
  download_url: 'http://download-url',
}  
*/

Express

Utilities for ExpressJS v4.x.x.

middlewareFactory(dependencySuppliers)(middlewareSupplier)(req, res, next)

Decorator for an Express middleware which dynamically instantiates request-based dependencies and underlying middleware upon processing of a request.

Arguments

Returns

ExpressJS middleware function.

Example

import {middlewareFactory} from '@quickcase/node-toolkit';
import express from 'express';

const router = express.Router();

const dependencySuppliers = {
  tokenProvider: (req) => () => Promise.resolve(req.accessToken),
  service: (req) => {...},
};

const middlewareSupplier = ({tokenProvider, service}) => (req, res) => {
  // use initialised `tokenProvider` and `service`...
};

router.get('/', middlewareFactory(dependencySuppliers)(middlewareSupplier));

Field

isNo(value)

Check the value of a YesOrNo field.

Arguments

Returns

true if the field matched No ignoring case; false otherwise.

Example

import {isNo} from '@quickcase/node-toolkit';

isNo('No'); // true
isNo('no'); // true
isNo(null); // false
isNo('Yes'); // false

isYes(value)

Check the value of a YesOrNo field.

Arguments

Returns

true if the field matched Yes ignoring case; false otherwise.

Example

import {isYes} from '@quickcase/node-toolkit';

isYes('Yes'); // true
isYes('yes'); // true
isYes(null); // false
isYes('No'); // false

newCollection(array)

Convert a Javascript array to a QuickCase collection value.

Arguments

Returns

Array formatted as a QuickCase collection.

Example

import {newCollection} from '@quickcase/node-toolkit';

newCollection(); // []
newCollection(['1', '2', '3']); // [{value: '1'},{value: '2'},{value: '3'}]

HTTP Client

httpClient(baseUrl, axiosInstance = axios)(accessTokenProvider)

Create a configured instance of an HTTP client, based on Axios.

Arguments

Returns

Configured HTTP client instance.

{
  get: (relativeUrl) => Promise<Axios.Response>,
  post: (relativeUrl, body) => Promise<Axios.Response>,
  put: (relativeUrl, body) => Promise<Axios.Response>,
}

OAuth2

AccessTokenSupplier

cookieAccessTokenSupplier(cookie = 'access_token')(req)

Extract an access token from a cookie on an ExpressJS request.

Arguments

Returns

string containing the access token; undefined if not found.

headerAccessTokenSupplier(header = 'Authorization')(req)

Extract an access token from a header on an ExpressJS request. The header value must comply to pattern Bearer <accessToken>.

Arguments

Returns

string containing the access token; undefined if not found.

clientAccessTokenProvider(config)()

Provides a valid OAuth2 client access token as per OAuth2's client credentials flow. This is used for Service-to-Service authentication.

Arguments

config:

• cacheTtl: Number. Time-to-live for cache in seconds, defaults to 60
• tokenEndpoint: URL of the OAuth2 /token endpoint on the IDAM server
• clientId: OAuth2 client ID
• clientSecret: OAuth2 client secret

Returns

Promise resolved with a valid access token, either from cache or newly generated.

Example

import {clientAccessTokenProvider} from '@quickcase/node-toolkit';

const tokenProvider = clientAccessTokenProvider({
  cacheTtl: 3600,
  tokenEndpoint: 'https://idam/oauth2/token',
  clientId: 'client',
  clientSecret: 'secret',
});

const accessToken = await tokenProvider();

defaultUserInfoRetriever(config)(accessToken)

Retrieve the user claims from an OIDC provider /userInfo endpoint.

Arguments

config:

• userInfoUri: Required. URI of OIDC provider's /userInfo endpoint

Returns

Promise resolved with the user claims.

Example

import {defaultUserInfoRetriever} from '@quickcase/node-toolkit';

const config = {jwksUri: 'http://idam/oidc/userInfo'};
const userClaims = await defaultUserInfoRetriever(config)('accessToken123');
/*
userClaims:
{
  "sub": "...",
  ...
}
*/

exchangeOAuth2Code(config)(redirectUri)(code)

Provided a valid OAuth2 code, exchange it for a full set of tokens in the context of an OIDC/OAuth2 authorization code grant.

Arguments

config:

• tokenEndpoint: URL of the OAuth2 /token endpoint on the IDAM server
• clientId: OAuth2 client ID
• clientSecret: OAuth2 client secret

Returns

Promise resolved with a valid set of tokens

Example

import {exchangeOAuth2Code} from '@quickcase/node-toolkit';

const config = {
  clientId: 'string',
  clientSecret: 'string',
  tokenEndpoint: 'string',
};

const tokens = await exchangeOAuth2Code(config)('http://redirect-uri')('code123');

/*
tokens:
{
  "access_token": "...",
  "id_token": "...",
  "expires_in": 300, // seconds
  "refresh_token": "...",
  "refresh_expires_in": 1800, // seconds
}
*/

JwtKeySupplier

cachedJwtKeySupplier(config)(jwtKeySupplier)(jwtHeader)

Decorates a jwtKeySupplier to add caching per kid.

Arguments

Returns

Promise resolved with signing key for given jwtHeader.

Example

import {cachedJwtKeySupplier} from '@quickcase/node-toolkit';

const config = {
  ttlMs: 5 * 1000,
};
const jwtKeySupplier = (jwtHeader) => Promise.resolve('signingKey');

const signingKey = await cachedJwtKeySupplier(config)(jwtKeySupplier)({kid: 'key123'});
// signingKey: '...'

defaultJwtKeySupplier(config)(jwtHeader)

Use jwks-rsa to retrieve signing key from a JWKS endpoint.

Arguments

Returns

Promise resolved with signing key for given jwtHeader.

Example

import {defaultJwtKeySupplier} from '@quickcase/node-toolkit';

const config = {
  jwksUri: 'https://idam/oidc/.well-known/jwks.json',
};

const signingKey = await defaultJwtKeySupplier(config)({kid: 'key123'});
// signingKey: '...'

JwtVerifier

defaultJwtVerifier(jwtKeySupplier)(jwtToken)

Use jsonwebtoken to verify JWT token and extract payload.

Arguments

Returns

Promise resolved with payload of jwtToken when token verified (signature and expiry). Promise rejected if jwtToken couldn't be verified.

Example

import {defaultJwtVerifier} from '@quickcase/node-toolkit';

const jwtKeySupplier = (jwtHeader) => Promise.resolve('signingKey');

const payload = await defaultJwtVerifier(jwtKeySupplier)('eyJhbGciOiJIUzI1NiIsInR...UuqlnuQ');
/*
payload:
{
  "sub": "...",
  "exp": "...",
  ...
}
*/

oauth2Guard(config)(req, res, next)

ExpressJS middleware mandating the presence of a valid access token and extracting user claims and granted authorities.

Arguments

config:

• accessTokenSupplier: Optional. Function extracting the access token from an ExpressJS request, defaults to extraction from Authorization header
• jwtVerifier: Required. Function verifying the JWT access token
• onError: Optional. Function handling errors
• rolesExtractor: Optional. Function extracting roles from user claims
• scopesExtractor: Optional. Function extracting scopes from access token claims
• userInfoRetriever: Required. Function retrieving the user claims from the OIDC provider
• userInfoScope: Optional. String controlling whether the retrieval of user info should be attempted. Defaults to profile.

Example

import express from 'express';
import {
  cachedJwtKeySupplier,
  defaultJwtKeySupplier,
  defaultJwtVerifier,
  defaultUserInfoRetriever,
  oauth2Guard,
} from '@quickcase/node-toolkit';

const jwtKeySupplier = cachedJwtKeySupplier()(defaultJwtKeySupplier({jwksUri: 'https://...'}));

const app = express();

app.use(oauth2Guard({
  jwtVerifier: defaultJwtVerifier(jwtKeySupplier),
  userInfoRetriever: defaultUserInfoRetriever({userInfoUri: 'https://...'}),
}));

app.use((req, res, next) => {
  // req.accessToken = 'ey123...';
  // req.grantedAuthorities = ['caseworker', 'caseworker-jid'];
  // req.userClaims = {
  //   sub: '',
  //   ...
  // };
  next();
});

refreshOAuth2Tokens(config)(refreshToken)

Provided a valid OAuth2 refresh token, exchange it for a full set of tokens.

Arguments

config:

• tokenEndpoint: URL of the OAuth2 /token endpoint on the IDAM server
• clientId: OAuth2 client ID
• clientSecret: OAuth2 client secret

Returns

Promise resolved with a valid set of tokens

Example

import {refreshOAuth2Tokens} from '@quickcase/node-toolkit';

const config = {
  clientId: 'string',
  clientSecret: 'string',
  tokenEndpoint: 'string',
};

const tokens = await refreshOAuth2Tokens(config)('refresh123');

/*
tokens:
{
  "access_token": "...",
  "id_token": "...",
  "expires_in": 300, // seconds
  "refresh_token": "...",
  "refresh_expires_in": 1800, // seconds
}
*/

Search

Search cases for a given case type using QuickCase's Data Store Search API v2.

search(httpClient)(caseType)(query)(sort)(page)

Execute a search query.

Arguments

Returns

Promise resolved with the payload of the successful search response.

Promise.resolve({
  total: { count: 0, pages: 0 },
  page: { index: 0, size: 25 },
  results: []
});

search DSL

A domain-specific language to help build search queries.

query(...criteria)

Build the top-level query object by composing one or many criteria.

not(criteria)

Combine criteria with the NOT operator.

and(...criteria)

Combine multiple criteria with the AND operator.

or(...criteria)

Combine multiple criteria with the OR operator.

data(...fields)

Build fully qualified field names to search on.

s.data('level1', 'level2');
// 'data.level1.level2'

contains(field, value)

Build a criterion matching MultiSelectList and Collection fields which contains the provided value.

value can either be a string in the case of MultiSelectList; or an object built with collectionItem(field, value) in the case of a Collection.

Dynamic field names must be prefixed with data..

dateRange(field, range)

Build a criterion matching Date and DateTime fields within a given range. range is an object build with fromToDate(from, to). Dynamic field names must be prefixed with data..

equals(field, value)

Build a criterion matching on exactly equal values for given field. Dynamic field names must be prefixed with data..

equalsIgnoreCase(field, value)

Similar to equals(field, value), but case-insensitive.

equalsAny(field, values)

Build a criterion matching exactly anyone of the provided values. Dynamic field names must be prefixed with data..

equalsAnyIgnoreCase(field, values)

Similar to equalsAny(field, values), but case-insensitive.

hasValue(field, boolean)

Build a criterion matching fields that have a value (true) or don't have a value (false). Dynamic field names must be prefixed with data..

is(field, boolean)

Build a criterion matching YesOrNo fields that are either true or false. Dynamic field names must be prefixed with data..

sort(...instructions)

Build the top-level sort object by combining one or many sorting instructions.

Priority of sorting instructions is based on the order of the instructions.

sortAsc(field)

Create an ascending sort instruction for the given field. Dynamic field names must be prefixed with data..

sortDesc(field)

Create a descending sort instruction for the given field. Dynamic field names must be prefixed with data..

page(index, size)

Build the top-level page object.

• index is the number of the results page to retrieve and starts at 1
• size is the maximum number of results to retrieve per page and is capped at 100

Example

import {httpClient, search, searchDsl as s} from '@quickcase/node-toolkit';

// A configured `httpClient` is required by search
const searchClient = httpClient('http://data-store:4452')(() => Promise.resolve('access-token'));

const query = s.query(
  s.and(
    s.contains(s.data('multiSelectField'), 'VALUE_1'),
    s.contains(s.data('collectionField'), s.collectionItem('subfield1', 'value1')),
    s.dateRange(s.data('dateField'), s.fromToDate('2020-01-01', '2020-01-31')),
    s.equals('state', 'STATE_1'),
    s.equalsIgnoreCase(s.data('field1'), 'fooBar'),
    s.equalsAny(s.data('field2'), ['VALUE_1', 'VALUE_2']),
    s.equalsAnyIgnoreCase(s.data('field2'), ['value_1', 'value_2']),
    s.hasValue(s.data('field3'), true),
    s.is(s.data('yesOrNoField'), true),
  )
);

const sort = s.sort(
  s.sortAsc('state'),
  s.sortDesc(s.data('field1')),
)

const page = s.page(1, 30);

const response = await search(searchClient)('CaseType1')(query)(sort)(page);

Redis Gateway

publishBatchMessage(config)(options)

Publish a batch message into Redis.

Arguments

config object properties Configuration properties for the Redis. | Name | Type | Description | |------|------|-------------| | host | String | Redis server host (ex : 127.0.0.1) | | port | String | Redis server port (6379) | | password | String | Redis password |

options object properties

jobItem object properties

Returns

Promise resolved when batch message successfully put into Redis.

Example

import {publishBatchMessage} from '@quickcase/node-toolkit';

const config = {host: 'redisHost', port: 'redisPort', password: 'pass'};
const jobItem = {
    caseType: 'Application',
    events: [{event: 'create', type: 'create',reference: null}],   
    payload: '# Case Event Payload',
    index: index,
    failCount: 3
};

const options = {
    callerReference: '#Case Reference',
    jobs: JSON.stringify([jobItem]),
    notifyUrl: '#webhooks-notify-url'
};

publishBatchMessage(config)(options)
    .then(console.log)
    .catch(console.error);
/*
["OK"]
*/

Test

This library also ships with test helpers available through a separate module @quickcase/node-toolkit/test under the @quickcase/node-toolkit package.

givenMiddleware(middleware).then(req).expectResponse|Next

Asynchronous function encapsulating the execution of an Express middleware for test purpose.

Arguments

Returns

When executed with .expectResponse():

• returns a Promise resolved with the response details if a response was sent with res.send() or res.json()
• returns a Promise rejected with the value of next() if the next() callback was called

When executed with .expectNext():

• returns a Promise resolved with the value of next() if the next() callback was called
• returns a Promise rejected with the response details if a response was sent with res.send() or res.json()

Example

import {givenMiddleware} from '@quickcase/node-toolkit/test';

test('should resolve with response when response expected', async () => {
  const middleware = (req, res) => res.status(201).json({foo: 'bar'});
  const res = await givenMiddleware(middleware).when({}).expectResponse();
  expect(res).toEqual({
    status: 201,
    headers: {},
    body: {foo: 'bar'},
  });
});

test('should resolve with next when next expected', async () => {
  const middleware = (req, res, next) => next('error');
  const next = await givenMiddleware(middleware).when({}).expectNext();
  expect(next).toEqual('error');
});

stubConfig(config)

Programatically creates a stub of a lorenwest/node-config config instance. This is useful for instances where a config instance is passed as a parameter to a function and the function needs to be tested with various configurations.

The stub comes with support for the following methods:

• get(property)
• has(property)

Example

import {stubConfig} from '@quickcase/node-toolkit/test';

const impl = (config) => {
  if (!config.has('Customer.dbConfig.host')) {
    throw Error('Config missing');
  }

  const dbHost = config.get('Customer.dbConfig.host');

  // use dbHost...
  return dbHost;
};

test('should error when host not configured', () => {
  const config = stubConfig({
    Customer: {
      dbConfig: {}
    }
  });

  expect(() => impl(config)).toThrow();
});

test('should error when host not configured', () => {
  const config = stubConfig({
    Customer: {
      dbConfig: {
        host: 'hello'
      }
    }
  });

  expect(impl(config)).toEqual('hello');
});