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// Copyright 2018 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package interpreter
import (
"testing"
"time"
"github.com/google/cel-go/common/types"
"github.com/google/cel-go/common/types/ref"
)
func TestActivation(t *testing.T) {
act, err := NewActivation(map[string]any{"a": types.True})
if err != nil {
t.Fatalf("Got err: %v, wanted activation", err)
}
_, err = NewActivation(act)
if err != nil {
t.Fatalf("Got err: %v, wanted activation", err)
}
act3, err := NewActivation("")
if err == nil {
t.Fatalf("Got %v, wanted err", act3)
}
}
func TestActivation_Resolve(t *testing.T) {
activation, _ := NewActivation(map[string]any{"a": types.True})
if val, found := activation.ResolveName("a"); !found || val != types.True {
t.Error("Activation failed to resolve 'a'")
}
}
func TestActivation_ResolveLazy(t *testing.T) {
var v ref.Val
now := func() ref.Val {
if v == nil {
v = types.DefaultTypeAdapter.NativeToValue(time.Now().Unix())
}
return v
}
a, _ := NewActivation(map[string]any{
"now": now,
})
first, _ := a.ResolveName("now")
second, _ := a.ResolveName("now")
if first != second {
t.Errorf("Got different second, "+
"expected same as first: 1:%v 2:%v", first, second)
}
}
func TestHierarchicalActivation(t *testing.T) {
// compose a parent with more properties than the child
parent, _ := NewActivation(map[string]any{
"a": types.String("world"),
"b": types.Int(-42),
})
// compose the child such that it shadows the parent
child, _ := NewActivation(map[string]any{
"a": types.True,
"c": types.String("universe"),
})
combined := NewHierarchicalActivation(parent, child)
// Resolve the shadowed child value.
if val, found := combined.ResolveName("a"); !found || val != types.True {
t.Error("Activation failed to resolve shadow value of 'a'")
}
// Resolve the parent only value.
if val, found := combined.ResolveName("b"); !found || val.(types.Int) != -42 {
t.Error("Activation failed to resolve parent value of 'b'")
}
// Resolve the child only value.
if val, found := combined.ResolveName("c"); !found || val.(types.String) != "universe" {
t.Error("Activation failed to resolve child value of 'c'")
}
}
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