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helm/pkg/events/lua/load_scripts_test.go

86 lines
2.1 KiB

/*
Copyright 2018 The Kubernetes Authors All rights reserved.
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 lua
import (
"path/filepath"
"testing"
"github.com/stretchr/testify/assert"
"github.com/yuin/gopher-lua"
hapi "k8s.io/helm/pkg/hapi/chart"
)
func TestLoadScripts(t *testing.T) {
chart := &hapi.Chart{
Metadata: &hapi.Metadata{
Name: "starboard",
},
Ext: []*hapi.File{
{
Name: filepath.Join("ext", "lua", "chart.lua"),
Data: []byte(`hello="world"; name="Ishmael"`),
},
{
Name: filepath.Join("ext", "lua", "decoy.lua"),
Data: []byte(`hello="goodbye"`),
},
},
}
outterChart := &hapi.Chart{
Metadata: &hapi.Metadata{
Name: "port",
},
Ext: []*hapi.File{
{
Name: filepath.Join("ext", "lua", "chart.lua"),
Data: []byte(`hello="Nantucket"; goodbye ="Spouter"`),
},
{
Name: filepath.Join("ext", "lua", "decoy.lua"),
Data: []byte(`hello="goodbye"`),
},
},
Dependencies: []*hapi.Chart{chart},
}
// Simple test on a single chart
vm := lua.NewState()
LoadScripts(vm, chart)
world := vm.GetGlobal("hello").String()
assert.Equal(t, world, "world", `expected hello="world"`)
// Test on a nested chart
vm = lua.NewState()
LoadScripts(vm, outterChart)
// This should override the child chart's value
result := vm.GetGlobal("hello").String()
assert.Equal(t, result, "Nantucket", `expected hello="Nantucket"`)
// This should be unchanged
result = vm.GetGlobal("goodbye").String()
assert.Equal(t, result, "Spouter", `expected goodbye="Spouter"`)
// This should come from the child chart
result = vm.GetGlobal("name").String()
assert.Equal(t, result, "Ishmael", `expected name="Ishmael"`)
}