package otto import ( "testing" . "github.com/robertkrimen/terst" ) func TestSynopsis(t *testing.T) { Terst(t) Otto := New() Otto.Run(` abc = 2 + 2 console.log("The value of abc is " + abc) // The value of abc is 4 `) // abc is an int64 with a value of 4 abc, _ := Otto.Get("abc") { abc, _ := abc.ToInteger() Is(abc, int64(4)) } Otto.Set("def", 11) Otto.Run(` console.log("The value of def is " + def) // The value of def is 11 `) Otto.Set("xyzzy", "Nothing happens.") Otto.Run(` console.log(xyzzy.length) // 16 `) xyzzyLength, _ := Otto.Run("xyzzy.length") { xyzzyLength, _ := xyzzyLength.ToInteger() Is(xyzzyLength, int64(16)) } { value, err := Otto.Run("abcdefghijlmnopqrstuvwxyz.length") Is(err, "ReferenceError: abcdefghijlmnopqrstuvwxyz is not defined (line 0)") if err != nil { IsTrue(value.IsUndefined()) } } }