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https://github.com/cdimascio/node-mongodb-fixtures
🍏 Setup and tear down test fixtures with MongoDB.
https://github.com/cdimascio/node-mongodb-fixtures
fixture-loader fixtures hacktoberfest mongodb test-driven-development testing
Last synced: 7 days ago
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🍏 Setup and tear down test fixtures with MongoDB.
- Host: GitHub
- URL: https://github.com/cdimascio/node-mongodb-fixtures
- Owner: cdimascio
- License: mit
- Created: 2017-07-18T00:48:30.000Z (over 7 years ago)
- Default Branch: master
- Last Pushed: 2023-08-30T23:43:00.000Z (over 1 year ago)
- Last Synced: 2024-12-08T03:42:11.014Z (16 days ago)
- Topics: fixture-loader, fixtures, hacktoberfest, mongodb, test-driven-development, testing
- Language: JavaScript
- Homepage:
- Size: 676 KB
- Stars: 93
- Watchers: 6
- Forks: 11
- Open Issues: 10
-
Metadata Files:
- Readme: README.md
- Funding: .github/FUNDING.yml
- License: LICENSE
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README
# node-mongodb-fixtures
 [](https://www.npmjs.com/package/node-mongodb-fixtures)  [](https://gitter.im/cdimascio-oss/community)
**Setup and tear down test fixtures with MongoDB.**
Use custom scripts to create indexes and more!
[](https://GitHub.com/cdimascio/node-mongodb-fixtures/stargazers/) [](https://twitter.com/intent/tweet?text=Check%20out%20node-mongodb-fixtures%20by%20%40CarmineDiMascio%20https%3A%2F%2Fgithub.com%2Fcdimascio%2Fnode-mongodb-fixtures%20%F0%9F%91%8D)
## Install
```shell
npm install node-mongodb-fixtures
```
### CLI
For CLI use, it can be useful to install globally:
```shell
npm install node-mongodb-fixtures -g
```
## Usage
### Programmatic
```javascript
const Fixtures = require('node-mongodb-fixtures');
const fixtures = new Fixtures();
fixtures
.connect('mongodb://localhost:27017/mydb')
.then(() => fixtures.unload())
.then(() => fixtures.load())
.then(() => fixtures.disconnect());
```
[See detailed programmatic usage below](#programmatic-usage)
### CLI
```shell
❯ mongodb-fixtures load -u mongodb://localhost:27017/mydb
```
[See detailed cli usage below](#cli-usage)
---
## Try the Example
The following example will load the example fixtures into a locally running MongoDB. To use another DB modify the the connection url accordingly (in step 2)
### Run the example
1. Clone the repo
```shell
git clone https://github.com/cdimascio/node-mongodb-fixtures && cd node-mongodb-fixtures && npm install
```
2. Load the fixtures into MongoDb
```shell
node bin/mongodb-fixtures load -u mongodb://localhost:27017/mydb --path ./examples/fixtures
```
---
## Create fixtures
#### How
1. Choose a directory for your fixtures e.g. `./fixtures`
2. Create any mix of JSON (`.json`), JavaScript (`.js`) files. (see file rules below)
3. Each filename defines a MongoDB collection
**JSON Files**
The name of the JSON file is/will be the collection name. Each JSON file **_must_** contain a 'JSON Array of JSON objects'. Each JSON object is loaded as a document in the collection.
JSON files are useful when you can represent all of your documents as JSON.
```json
[
{ "name": "Paul", "age": 36 },
{ "name": "Phoebe", "age": 26 }
]
```
**JavaScript Files**
The name of the JSON file is/will be the collection name. Each `.js` file must return a 'JSON Array of JSON objects'. Each JSON object is loaded as a document in the collection.
JavaScript files are useful when you require code to represent your documents.
```javascript
const { ObjectID: ObjectId } = require('mongodb');
module.exports = [
{ _id: ObjectId(), name: 'Paul', 'age': 36 },
{ _id: ObjectId(), name: 'Phoebe', 'age': 26 },
];
```
#### Example Structure
```
fixtures/
|-- people.js
|-- places.json
```
See `./examples/fixtures`
## Collection Scripts: Indexes and more...
"Collection scripts" enable you to inject your own custom logic in the fixture creation lifecycle. Each custom script is passed a reference to a MongoDB collection. You may use this reference to modify the collection however you like. For example, you can add indexes and more.
### How
1. Create a new JavaScript file with an underscore `_` suffix. e.g. `people_.js`.
2. The `_` denotes a script. The text preceding it, `people`, is the collection name.
3. Each script is passed a single argument, the collection.
4. Each must return a `function` that takes a `collection` and returns a `Promise`.
#### Example
```javascript
// people_.js
module.exports = function(collection) {
// Write your custom logic and return a promise
return collection.createIndex( { "address.city": 1 }, { unique: false } );
}
```
```
fixtures/
|-- people_.js
|-- people.js
|-- places.json
```
**Note:** Custom scripts run after all fixtures have completed.
## Programmatic Usage
### Init
use the default fixtures directory,`./fixtures`
```javascript
const Fixtures = require('node-mongodb-fixtures');
const fixtures = new Fixtures();
```
or specifiy the fixtures directory
```javascript
const Fixtures = require('node-mongodb-fixtures');
const fixtures = new Fixtures({
dir: 'examples/fixtures',
mute: false, // do not mute the log output
});
```
or filter the fixtures present in the directory with a Regex pattern
```javascript
const Fixtures = require('node-mongodb-fixtures');
const fixtures = new Fixtures({
dir: 'examples/fixtures',
filter: 'people.*',
});
```
### Connect
Use the standard MongoDB [URI connection scheme](https://docs.mongodb.com/manual/reference/connection-string/)
```javascript
fixtures.connect('mongodb://localhost:27017/mydb'); // returns a promise
```
**connect(uri, options, dbName)**
| arg | type | description |
| --------- | ----------------- | -------------------------------------------------------------------------------------------------------------------------- |
| `uri` | string (required) | [MongoDB connection string](https://docs.mongodb.com/manual/reference/connection-string/) |
| `options` | object (optional) | [MongoDB connection options](http://mongodb.github.io/node-mongodb-native/2.2/api/MongoClient.html#connect) |
| `dbName` | string (optional) | identifies a database to switch to. Useful when the db in the connection string differs from the db you want to connect to |
See: `./examples/ex1.js`
### Load
```javascript
fixtures.load(); // returns a promise
```
### Unload
```javascript
fixtures.unload(); // returns a promise
```
### Disconnect
```javascript
fixtures.disconnect(); // returns a promise
```
## Example
The following example does the following:
- connects to mongo
- then unloads all fixtures
- then loads all fixtures
- then disconnects
```javascript
const Fixtures = require('node-mongodb-fixtures');
const uri = 'mongodb://localhost/mydb';
const options = null;
const fixtures = new Fixtures({
dir: 'examples/fixtures',
filter: '.*',
});
fixtures
.connect('mongodb://localhost:27017/mydb')
.then(() => fixtures.unload())
.then(() => fixtures.load())
.catch(e => console.error(e))
.finally(() => fixtures.disconnect());
```
## CLI Usage
```shell
❯ mongodb-fixtures
Usage: mongodb-fixtures [options] [command]
Options:
-V, --version output the version number
-u --url mongo connection string
-s --ssl use SSL
-d --db_name database name
-n --ssl_novalidate use SSL with no verification
-c --ssl_ca path to cert
-p --path resource path. Default ./fixtures
-f --filter regex pattern to filter fixture names
-b --verbose verbose logs
-h, --help output usage information
Commands:
load
unload
rebuild
```
## Example Output
```shell
[info ] Using fixtures directory: /Users/dimascio/git/node-mongodb-fixtures/examples/fixtures
[info ] Using database mydb
[info ] No filtering in use
[start] load people
[start] load places
[done ] load people
[done ] load places
[done ] *load all
[start] script people_.js
[done ] script people_.js
[done ] *script all
```
## Contributors
Contributors are welcome!
Special thanks to those who have contributed:
- [cdimascio](https://www.github.com/cdimascio)
- [Mykolas-Zenitech](https://github.com/Mykolas-Zenitech)
- [westyside](https://github.com/westyside)
- [mushketyk](https://github.com/mushketyk)
- [leeandher](https://github.com/leeandher)
## License
[MIT](https://opensource.org/licenses/MIT)
