istanbul-tools/vendor/github.com/robertkrimen/otto/function_stack_test.go

49 lines
1.3 KiB
Go

package otto
import (
"testing"
)
// this is its own file because the tests in it rely on the line numbers of
// some of the functions defined here. putting it in with the rest of the
// tests would probably be annoying.
func TestFunction_stack(t *testing.T) {
tt(t, func() {
vm := New()
s, _ := vm.Compile("fake.js", `function X(fn1, fn2, fn3) { fn1(fn2, fn3); }`)
vm.Run(s)
expected := []_frame{
{native: true, nativeFile: "function_stack_test.go", nativeLine: 30, offset: 0, callee: "github.com/robertkrimen/otto.TestFunction_stack.func1.2"},
{native: true, nativeFile: "function_stack_test.go", nativeLine: 25, offset: 0, callee: "github.com/robertkrimen/otto.TestFunction_stack.func1.1"},
{native: false, nativeFile: "", nativeLine: 0, offset: 29, callee: "X", file: s.program.file},
{native: false, nativeFile: "", nativeLine: 0, offset: 29, callee: "X", file: s.program.file},
}
vm.Set("A", func(c FunctionCall) Value {
c.Argument(0).Call(UndefinedValue())
return UndefinedValue()
})
vm.Set("B", func(c FunctionCall) Value {
depth := 0
for scope := c.Otto.runtime.scope; scope != nil; scope = scope.outer {
is(scope.frame, expected[depth])
depth++
}
is(depth, 4)
return UndefinedValue()
})
x, _ := vm.Get("X")
a, _ := vm.Get("A")
b, _ := vm.Get("B")
x.Call(UndefinedValue(), x, a, b)
})
}