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gojatest.go
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gojatest.go
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package gojatest
import (
"fmt"
"io"
"os"
"sort"
"strings"
"github.com/dop251/goja"
"github.com/dop251/goja/parser"
)
type Test struct {
program *goja.Program
}
func New(file, test string) (*Test, error) {
ffile, err := os.Open(file)
if err != nil {
return nil, err
}
defer ffile.Close()
ftest, err := os.Open(test)
if err != nil {
return nil, err
}
defer ftest.Close()
ast, err := parser.ParseFile(nil, "testing.js",
io.MultiReader(ffile, ftest, strings.NewReader(`
const assert = {
throw: (cb) => {
let catched = false;
let ee = null;
try {
cb()
} catch (e) {
catched = true;
ee = e;
}
if (!catched) {
throw("This test should throw error");
}
return ee;
},
that: (a, txt) => {
if (!a) {
throw("Failed : " + txt);
}
}
};
`)), 0)
if err != nil {
return nil, err
}
prg, err := goja.CompileAST(ast, true)
if err != nil {
return nil, err
}
return &Test{
program: prg,
}, nil
}
func (t *Test) Tests() ([]string, error) {
vm := goja.New()
_, err := vm.RunProgram(t.program)
if err != nil {
return nil, err
}
tt := make([]string, 0)
for _, k := range vm.GlobalObject().Keys() {
if strings.HasPrefix(k, "test") {
tt = append(tt, k)
}
}
if r := recover(); r != nil {
fmt.Println("Recovering from panic:", r)
}
sort.Strings(tt)
return tt, nil
}
func (t *Test) Run(vm *goja.Runtime, test string) error {
fun, ok := goja.AssertFunction(vm.Get(test))
if !ok {
return fmt.Errorf("test not found : %s", test)
}
_, err := fun(goja.Null())
return err
}
func (t *Test) RunAll() error {
vm := goja.New()
_, err := vm.RunProgram(t.program)
if err != nil {
return err
}
tests, err := t.Tests()
if err != nil {
return err
}
for _, tt := range tests {
err := t.Run(vm, tt)
if err != nil {
return err
}
}
return nil
}