Split test utils, add opcode tests

test/integration_test.go

@@ -2,11 +2,8 @@ package test
 
 import "testing"
 
-import "github.com/firestuff/subcoding/asm"
-import "github.com/firestuff/subcoding/vm"
-
 func TestLoop(t *testing.T) {
-	prog, err := asm.AssembleString(`
+	state := assembleAndExecute(t, `
 functions:
 - - [add, f0, 1]
   - [call, +1]
@@ -15,21 +12,6 @@ functions:
 
 - - [add, g0, 1]
 `)
-	if err != nil {
-		t.Fatal(err)
-	}
 
-	state, err := vm.NewState(prog)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	err = state.Execute()
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if state.GlobalMemory().MustReadUnsigned(0) != 3 {
-		t.Fatalf("Expected 3, found %d\n", state.GlobalMemory().MustReadUnsigned(0))
-	}
+	expectGlobalMemory(t, state, 0, 3)
 }