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package codegen
import (
"fmt"
"testing"
"github.com/gnolang/parscan/lang/golang"
)
func TestEval(t *testing.T) {
for _, test := range evalTests {
test := test
t.Run("", func(t *testing.T) {
interp := NewInterpreter(golang.GoParser)
errStr := ""
r, e := interp.Eval(test.src)
if e != nil {
errStr = e.Error()
}
if errStr != test.err {
t.Errorf("got error %#v, want error %#v", errStr, test.err)
}
res := fmt.Sprintf("%v", r)
if res != test.res {
t.Errorf("got %#v, want %#v", res, test.res)
}
})
}
}
var evalTests = []struct {
name, src, res, err string
}{{ // #00
src: "1 + 2",
res: "3",
}, { // #01
src: "a := 2; a = a + 3",
res: "5",
}, { // #02
src: "func f(a int) int { return a + 1 }; f(5)",
res: "6",
}, { // #03
src: "func f(a int) (b int) { b = a + 1; return b }; f(5)",
res: "6",
}, { // #04
src: "func f(a int) (b int) { b = a + 1; return }; f(5)",
res: "6",
}}
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