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harnessenhanced.go
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harnessenhanced.go
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// Copyright 2019 The Kubernetes Authors.
// SPDX-License-Identifier: Apache-2.0
package kusttest_test
import (
"testing"
"sigs.k8s.io/kustomize/api/filesys"
"sigs.k8s.io/kustomize/api/ifc"
pLdr "sigs.k8s.io/kustomize/api/internal/plugins/loader"
"sigs.k8s.io/kustomize/api/konfig"
fLdr "sigs.k8s.io/kustomize/api/loader"
"sigs.k8s.io/kustomize/api/provider"
"sigs.k8s.io/kustomize/api/resmap"
valtest_test "sigs.k8s.io/kustomize/api/testutils/valtest"
"sigs.k8s.io/kustomize/api/types"
)
// HarnessEnhanced manages a full plugin environment for tests.
type HarnessEnhanced struct {
// An instance of *testing.T, and a filesystem (likely in-memory)
// for loading test data - plugin config, resources to transform, etc.
Harness
// plugintestEnv holds the plugin compiler and data needed to
// create compilation sub-processes.
pte *pluginTestEnv
// rf creates Resources from byte streams.
rf *resmap.Factory
// A file loader using the Harness.fSys to read test data.
ldr ifc.Loader
// A plugin loader that loads plugins from a (real) file system.
pl *pLdr.Loader
}
func MakeEnhancedHarness(t *testing.T) *HarnessEnhanced {
pte := newPluginTestEnv(t).set()
pc, err := konfig.EnabledPluginConfig(types.BploLoadFromFileSys)
pc.FnpLoadingOptions.EnableStar = true
if err != nil {
t.Fatal(err)
}
p := provider.NewDefaultDepProvider()
resourceFactory := p.GetResourceFactory()
resmapFactory := resmap.NewFactory(
resourceFactory, p.GetConflictDetectorFactory())
result := &HarnessEnhanced{
Harness: MakeHarness(t),
pte: pte,
rf: resmapFactory,
pl: pLdr.NewLoader(pc, resmapFactory)}
// Point the file loader to the root ('/') of the in-memory file system.
result.ResetLoaderRoot(filesys.Separator)
return result
}
func (th *HarnessEnhanced) Reset() {
th.pte.reset()
}
func (th *HarnessEnhanced) PrepBuiltin(k string) *HarnessEnhanced {
return th.BuildGoPlugin(konfig.BuiltinPluginPackage, "", k)
}
func (th *HarnessEnhanced) BuildGoPlugin(g, v, k string) *HarnessEnhanced {
th.pte.prepareGoPlugin(g, v, k)
return th
}
func (th *HarnessEnhanced) PrepExecPlugin(g, v, k string) *HarnessEnhanced {
th.pte.prepareExecPlugin(g, v, k)
return th
}
// ResetLoaderRoot interprets its argument as an absolute directory path.
// It creates the directory, and creates the harness's file loader
// rooted in that directory.
func (th *HarnessEnhanced) ResetLoaderRoot(root string) {
if err := th.fSys.Mkdir(root); err != nil {
th.t.Fatal(err)
}
ldr, err := fLdr.NewLoader(
fLdr.RestrictionRootOnly, root, th.fSys)
if err != nil {
th.t.Fatalf("Unable to make loader: %v", err)
}
th.ldr = ldr
}
func (th *HarnessEnhanced) LoadAndRunGenerator(
config string) resmap.ResMap {
res, err := th.rf.RF().FromBytes([]byte(config))
if err != nil {
th.t.Fatalf("Err: %v", err)
}
g, err := th.pl.LoadGenerator(
th.ldr, valtest_test.MakeFakeValidator(), res)
if err != nil {
th.t.Fatalf("Err: %v", err)
}
rm, err := g.Generate()
if err != nil {
th.t.Fatalf("Err: %v", err)
}
rm.RemoveBuildAnnotations()
return rm
}
func (th *HarnessEnhanced) LoadAndRunTransformer(
config, input string) resmap.ResMap {
resMap, err := th.RunTransformer(config, input)
if err != nil {
th.t.Fatalf("Err: %v", err)
}
return resMap
}
func (th *HarnessEnhanced) RunTransformerAndCheckResult(
config, input, expected string) {
resMap := th.LoadAndRunTransformer(config, input)
th.AssertActualEqualsExpectedNoIdAnnotations(resMap, expected)
}
func (th *HarnessEnhanced) ErrorFromLoadAndRunTransformer(
config, input string) error {
_, err := th.RunTransformer(config, input)
return err
}
type AssertFunc func(t *testing.T, err error)
func (th *HarnessEnhanced) RunTransformerAndCheckError(
config, input string, assertFn AssertFunc) {
_, err := th.RunTransformer(config, input)
assertFn(th.t, err)
}
func (th *HarnessEnhanced) RunTransformer(
config, input string) (resmap.ResMap, error) {
resMap, err := th.rf.NewResMapFromBytes([]byte(input))
if err != nil {
th.t.Fatalf("Err: %v", err)
}
return th.RunTransformerFromResMap(config, resMap)
}
func (th *HarnessEnhanced) RunTransformerFromResMap(
config string, resMap resmap.ResMap) (resmap.ResMap, error) {
transConfig, err := th.rf.RF().FromBytes([]byte(config))
if err != nil {
th.t.Logf("config: '%s'", config)
th.t.Fatalf("Err: %v", err)
}
g, err := th.pl.LoadTransformer(
th.ldr, valtest_test.MakeFakeValidator(), transConfig)
if err != nil {
return nil, err
}
err = g.Transform(resMap)
return resMap, err
}