vise/go/vm/runner_test.go

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package vm
import (
"bytes"
"context"
"fmt"
"log"
"testing"
"git.defalsify.org/festive/resource"
"git.defalsify.org/festive/state"
)
var dynVal = "three"
type TestResource struct {
resource.MenuResource
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state *state.State
}
func getOne(ctx context.Context) (string, error) {
return "one", nil
}
func getTwo(ctx context.Context) (string, error) {
return "two", nil
}
func getDyn(ctx context.Context) (string, error) {
return dynVal, nil
}
type TestStatefulResolver struct {
state *state.State
}
func (r *TestResource) GetTemplate(sym string, sizer *resource.Sizer) (string, error) {
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switch sym {
case "foo":
return "inky pinky blinky clyde", nil
case "bar":
return "inky pinky {{.one}} blinky {{.two}} clyde", nil
case "baz":
return "inky pinky {{.baz}} blinky clyde", nil
case "three":
return "{{.one}} inky pinky {{.three}} blinky clyde {{.two}}", nil
case "_catch":
return "aiee", nil
}
panic(fmt.Sprintf("unknown symbol %s", sym))
return "", fmt.Errorf("unknown symbol %s", sym)
}
func (r *TestResource) RenderTemplate(sym string, values map[string]string) (string, error) {
return resource.DefaultRenderTemplate(r, sym, values)
}
func (r *TestResource) FuncFor(sym string) (resource.EntryFunc, error) {
switch sym {
case "one":
return getOne, nil
case "two":
return getTwo, nil
case "dyn":
return getDyn, nil
case "arg":
return r.getInput, nil
}
return nil, fmt.Errorf("invalid function: '%s'", sym)
}
func(r *TestResource) getInput(ctx context.Context) (string, error) {
v, err := r.state.GetInput()
return string(v), err
}
func(r *TestResource) GetCode(sym string) ([]byte, error) {
var b []byte
if sym == "_catch" {
b = NewLine(b, MOUT, []string{"0", "repent"}, nil, nil)
b = NewLine(b, HALT, nil, nil, nil)
}
return b, nil
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}
func TestRun(t *testing.T) {
st := state.NewState(5)
rs := TestResource{}
b := NewLine(nil, MOVE, []string{"foo"}, nil, nil)
b = NewLine(b, HALT, nil, nil, nil)
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_, err := Run(b, &st, &rs, context.TODO())
if err != nil {
t.Errorf("run error: %v", err)
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}
b = []byte{0x01, 0x02}
_, err = Run(b, &st, &rs, context.TODO())
if err == nil {
t.Errorf("no error on invalid opcode")
}
}
func TestRunLoadRender(t *testing.T) {
st := state.NewState(5)
st.Down("barbarbar")
rs := TestResource{}
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var err error
b := NewLine(nil, LOAD, []string{"one"}, []byte{0x0a}, nil)
b = NewLine(b, HALT, nil, nil, nil)
b, err = Run(b, &st, &rs, context.TODO())
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if err != nil {
t.Error(err)
}
m, err := st.Get()
if err != nil {
t.Error(err)
}
r, err := rs.RenderTemplate("foo", m)
if err != nil {
t.Error(err)
}
expect := "inky pinky blinky clyde"
if r != expect {
t.Errorf("Expected %v, got %v", []byte(expect), []byte(r))
}
r, err = rs.RenderTemplate("bar", m)
if err == nil {
t.Errorf("expected error for render of bar: %v" ,err)
}
b = NewLine(nil, LOAD, []string{"two"}, []byte{0x0a}, nil)
b = NewLine(b, HALT, nil, nil, nil)
b, err = Run(b, &st, &rs, context.TODO())
if err != nil {
t.Error(err)
}
b = NewLine(nil, MAP, []string{"one"}, nil, nil)
b = NewLine(b, HALT, nil, nil, nil)
_, err = Run(b, &st, &rs, context.TODO())
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if err != nil {
t.Error(err)
}
m, err = st.Get()
if err != nil {
t.Error(err)
}
r, err = rs.RenderTemplate("bar", m)
if err != nil {
t.Error(err)
}
expect = "inky pinky one blinky two clyde"
if r != expect {
t.Errorf("Expected %v, got %v", expect, r)
}
}
func TestRunMultiple(t *testing.T) {
st := state.NewState(5)
rs := TestResource{}
b := NewLine(nil, LOAD, []string{"one"}, []byte{0x00}, nil)
b = NewLine(b, LOAD, []string{"two"}, []byte{42}, nil)
b = NewLine(b, HALT, nil, nil, nil)
b, err := Run(b, &st, &rs, context.TODO())
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if err != nil {
t.Error(err)
}
if len(b) > 0 {
t.Errorf("expected empty code")
}
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}
func TestRunReload(t *testing.T) {
st := state.NewState(5)
rs := TestResource{}
b := NewLine(nil, MOVE, []string{"root"}, nil, nil)
b = NewLine(b, LOAD, []string{"dyn"}, nil, []uint8{0})
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b = NewLine(b, MAP, []string{"dyn"}, nil, nil)
b = NewLine(b, HALT, nil, nil, nil)
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_, err := Run(b, &st, &rs, context.TODO())
if err != nil {
t.Fatal(err)
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}
r, err := st.Val("dyn")
if err != nil {
t.Fatal(err)
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}
if r != "three" {
t.Fatalf("expected result 'three', got %v", r)
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}
dynVal = "baz"
b = NewLine(nil, RELOAD, []string{"dyn"}, nil, nil)
b = NewLine(b, HALT, nil, nil, nil)
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_, err = Run(b, &st, &rs, context.TODO())
if err != nil {
t.Fatal(err)
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}
r, err = st.Val("dyn")
if err != nil {
t.Fatal(err)
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}
log.Printf("dun now %s", r)
if r != "baz" {
t.Fatalf("expected result 'baz', got %v", r)
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}
}
func TestHalt(t *testing.T) {
st := state.NewState(5)
rs := TestResource{}
b := NewLine([]byte{}, LOAD, []string{"one"}, nil, []uint8{0})
b = NewLine(b, HALT, nil, nil, nil)
b = NewLine(b, MOVE, []string{"foo"}, nil, nil)
var err error
b, err = Run(b, &st, &rs, context.TODO())
if err != nil {
t.Error(err)
}
r := st.Where()
if r == "foo" {
t.Fatalf("Expected where-symbol not to be 'foo'")
}
if !bytes.Equal(b[:2], []byte{0x00, MOVE}) {
t.Fatalf("Expected MOVE instruction, found '%v'", b)
}
}
func TestRunArg(t *testing.T) {
st := state.NewState(5)
rs := TestResource{}
input := []byte("bar")
_ = st.SetInput(input)
bi := NewLine(nil, INCMP, []string{"bar", "baz"}, nil, nil)
bi = NewLine(bi, HALT, nil, nil, nil)
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b, err := Run(bi, &st, &rs, context.TODO())
if err != nil {
t.Error(err)
}
l := len(b)
if l != 0 {
t.Errorf("expected empty remainder, got length %v: %v", l, b)
}
r := st.Where()
if r != "baz" {
t.Errorf("expected where-state baz, got %v", r)
}
}
func TestRunInputHandler(t *testing.T) {
st := state.NewState(5)
rs := TestResource{}
_ = st.SetInput([]byte("baz"))
bi := NewLine([]byte{}, INCMP, []string{"bar", "aiee"}, nil, nil)
bi = NewLine(bi, INCMP, []string{"baz", "foo"}, nil, nil)
bi = NewLine(bi, LOAD, []string{"one"}, []byte{0x00}, nil)
bi = NewLine(bi, LOAD, []string{"two"}, []byte{0x03}, nil)
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bi = NewLine(bi, MAP, []string{"one"}, nil, nil)
bi = NewLine(bi, MAP, []string{"two"}, nil, nil)
bi = NewLine(bi, HALT, nil, nil, nil)
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var err error
_, err = Run(bi, &st, &rs, context.TODO())
if err != nil {
t.Fatal(err)
}
r := st.Where()
if r != "foo" {
t.Fatalf("expected where-sym 'foo', got '%v'", r)
}
}
func TestRunArgInvalid(t *testing.T) {
st := state.NewState(5)
rs := TestResource{}
_ = st.SetInput([]byte("foo"))
var err error
st.Down("root")
b := NewLine(nil, INCMP, []string{"bar", "baz"}, nil, nil)
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b, err = Run(b, &st, &rs, context.TODO())
if err != nil {
t.Fatal(err)
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}
r := st.Where()
if r != "_catch" {
t.Fatalf("expected where-state _catch, got %v", r)
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}
}
func TestRunMenu(t *testing.T) {
st := state.NewState(5)
rs := TestResource{}
var err error
b := NewLine(nil, MOVE, []string{"foo"}, nil, nil)
b = NewLine(b, MOUT, []string{"0", "one"}, nil, nil)
b = NewLine(b, MOUT, []string{"1", "two"}, nil, nil)
b = NewLine(b, HALT, nil, nil, nil)
b, err = Run(b, &st, &rs, context.TODO())
if err != nil {
t.Error(err)
}
l := len(b)
if l != 0 {
t.Errorf("expected empty remainder, got length %v: %v", l, b)
}
r, err := rs.RenderMenu()
if err != nil {
t.Fatal(err)
}
expect := "0:one\n1:two"
if r != expect {
t.Fatalf("expected:\n\t%s\ngot:\n\t%s\n", expect, r)
}
}
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func TestRunMenuBrowse(t *testing.T) {
log.Printf("This test is incomplete, it must check the output of a menu browser once one is implemented. For now it only checks whether it can execute the runner endpoints for the instrucitons.")
st := state.NewState(5)
rs := TestResource{}
var err error
b := NewLine(nil, MOVE, []string{"foo"}, nil, nil)
b = NewLine(b, MNEXT, []string{"11", "two"}, nil, nil)
b = NewLine(b, MPREV, []string{"22", "two"}, nil, nil)
b = NewLine(b, MOUT, []string{"0", "one"}, nil, nil)
b = NewLine(b, MOUT, []string{"1", "two"}, nil, nil)
b = NewLine(b, HALT, nil, nil, nil)
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b, err = Run(b, &st, &rs, context.TODO())
if err != nil {
t.Error(err)
}
l := len(b)
if l != 0 {
t.Errorf("expected empty remainder, got length %v: %v", l, b)
}
r, err := rs.RenderMenu()
if err != nil {
t.Fatal(err)
}
expect := "0:one\n1:two"
if r != expect {
t.Fatalf("expected:\n\t%s\ngot:\n\t%s\n", expect, r)
}
}