istio.io/pkg/test/istioio/builder.go

83 lines
2.2 KiB
Go

// Copyright Istio Authors
//
// 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 istioio
import (
"os"
"path"
"istio.io/istio/pkg/test/env"
"istio.io/istio/pkg/test/framework"
"istio.io/istio/pkg/test/scopes"
)
// Builder builds a test of a documented workflow from https://istio.io.
type Builder struct {
steps []Step
cleanupSteps []Step
}
// NewBuilder returns an instance of a document test.
func NewBuilder() *Builder {
return &Builder{}
}
// Add a step to be run.
func (b *Builder) Add(steps ...Step) *Builder {
b.steps = append(b.steps, steps...)
return b
}
// Defer registers a function to be executed when the test completes.
func (b *Builder) Defer(steps ...Step) *Builder {
b.cleanupSteps = append(b.cleanupSteps, steps...)
return b
}
// Build a run function for the test
func (b *Builder) Build() func(ctx framework.TestContext) {
return func(ctx framework.TestContext) {
scopes.Framework.Infof("Executing test %s (%d steps)", ctx.Name(), len(b.steps))
// create a symbolic link to samples/, for easy access
samplesSymlink := path.Join(ctx.WorkDir(), "samples")
if _, err := os.Stat(samplesSymlink); os.IsNotExist(err) {
err = os.Symlink(path.Join(env.IstioSrc, "samples"), samplesSymlink)
if err != nil {
scopes.Framework.Warnf("Could not create symlink to samples/ directory at %s", samplesSymlink)
} else {
defer func() {
_ = os.Remove(samplesSymlink)
}()
}
}
// Run cleanup functions at the end.
defer func() {
for _, step := range b.cleanupSteps {
ctx.NewSubTest(step.Name()).Run(func(ctx framework.TestContext) {
step.run(ctx)
})
}
}()
for _, step := range b.steps {
ctx.NewSubTest(step.Name()).Run(func(ctx framework.TestContext) {
step.run(ctx)
})
}
}
}