mirror of
https://github.com/hanzoai/expr.git
synced 2026-09-24 16:58:58 +00:00
Anton MedvedevandGitHub
8e2df3e45e
* Move FiendIndex and MethodIndex out of ast nodes * Remove println statement * Add method compiler tests
49 lines
894 B
Go
49 lines
894 B
Go
package interface_method_test
|
|
|
|
import (
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
"github.com/stretchr/testify/require"
|
|
|
|
"github.com/expr-lang/expr"
|
|
)
|
|
|
|
type Bar interface {
|
|
Bar() int
|
|
}
|
|
|
|
type FooImpl struct{}
|
|
|
|
func (f FooImpl) Foo() Bar {
|
|
return BarImpl{}
|
|
}
|
|
|
|
type BarImpl struct{}
|
|
|
|
// Aba is a special method that is not part of the Bar interface,
|
|
// but is used to test that the correct method is called. "Aba" name
|
|
// is chosen to be before "Bar" in the alphabet.
|
|
func (b BarImpl) Aba() bool {
|
|
return true
|
|
}
|
|
|
|
func (b BarImpl) Bar() int {
|
|
return 42
|
|
}
|
|
|
|
func TestInterfaceMethod(t *testing.T) {
|
|
require.True(t, BarImpl{}.Aba())
|
|
require.True(t, BarImpl{}.Bar() == 42)
|
|
|
|
env := map[string]any{
|
|
"var": FooImpl{},
|
|
}
|
|
p, err := expr.Compile(`var.Foo().Bar()`, expr.Env(env))
|
|
assert.NoError(t, err)
|
|
|
|
out, err := expr.Run(p, env)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, 42, out)
|
|
}
|