playwright 47 data driven testing using json file in playwright

playwright data-driven testing using json files

data-driven testing is a testing methodology that uses data files to drive test case execution. in playwright, you can easily implement data-driven testing by reading test data from a json file. this approach allows you to separate your test logic from the data, making your tests cleaner and easier to maintain.

in this tutorial, we will go through the following steps:

1. **set up a playwright project**
2. **create a json file with test data**
3. **write a test that reads from the json file**
4. **run the tests**

step 1: set up a playwright project

1. create a new directory for your project:
```bash
mkdir playwright-data-driven
cd playwright-data-driven
```

```bash
npm init -y
```

3. install playwright:
```bash
npm install playwright
```

4. install playwright test:
```bash
npm install @playwright/test
```

5. create a test directory:
```bash
mkdir tests
```

step 2: create a json file with test data

```json
[
{
"username": "user1",
"password": "pass1",
"expectedtitle": "welcome user1"
},
{
"username": "user2",
"password": "pass2",
"expectedtitle": "welcome user2"
},
{
"username": "user3",
"password": "pass3",
"expectedtitle": "welcome user3"
}
]
```

step 3: write a test that reads from the json file

here’s an example test file:

```typescript
import * as fs fro ...

#Playwright #DataDrivenTesting #JSONFile

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