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# combinator
[](https://github.com/muesli/combinator/releases)
[](https://godoc.org/github.com/muesli/combinator)
[](https://github.com/muesli/combinator/actions)
[](https://coveralls.io/github/muesli/combinator?branch=master)
[](http://goreportcard.com/report/muesli/combinator)
`combinator` generates a slice of all possible value combinations for any given
struct and a set of its potential member values. This can be used to generate
extensive test matrixes among other things.
## Installation
```bash
go get github.com/muesli/combinator
```
## Example
```go
type User struct {
Name string
Age uint
Admin bool
}
/*
Define potential test values. Make sure the struct's fields share the name and
type of the structs you want to generate.
*/
testData := struct {
Name []string
Age []uint
Admin []bool
}{
Name: []string{"Alice", "Bob"},
Age: []uint{23, 42, 99},
Admin: []bool{false, true},
}
// Generate all possible combinations
var users []User
combinator.Generate(&users, testData)
for i, u := range users {
fmt.Printf("Combination %2d | Name: %-5s | Age: %d | Admin: %v\n", i, u.Name, u.Age, u.Admin)
}
```
```
Combination 0 | Name: Alice | Age: 23 | Admin: false
Combination 1 | Name: Bob | Age: 23 | Admin: false
Combination 2 | Name: Alice | Age: 42 | Admin: false
Combination 3 | Name: Bob | Age: 42 | Admin: false
Combination 4 | Name: Alice | Age: 99 | Admin: false
Combination 5 | Name: Bob | Age: 99 | Admin: false
Combination 6 | Name: Alice | Age: 23 | Admin: true
Combination 7 | Name: Bob | Age: 23 | Admin: true
Combination 8 | Name: Alice | Age: 42 | Admin: true
Combination 9 | Name: Bob | Age: 42 | Admin: true
Combination 10 | Name: Alice | Age: 99 | Admin: true
Combination 11 | Name: Bob | Age: 99 | Admin: true
```
## License
[MIT](https://github.com/muesli/combinator/raw/master/LICENSE)
|
