github.com/docker/compose-on-kubernetes@v0.5.0/internal/controller/stackownercache_test.go (about)

     1  package controller
     2  
     3  import (
     4  	"testing"
     5  
     6  	"github.com/docker/compose-on-kubernetes/api/compose/impersonation"
     7  	"github.com/docker/compose-on-kubernetes/api/compose/latest"
     8  	"github.com/docker/compose-on-kubernetes/internal/stackresources"
     9  	"github.com/stretchr/testify/assert"
    10  	kerrors "k8s.io/apimachinery/pkg/api/errors"
    11  )
    12  
    13  type ownerGetterFunc struct {
    14  	getFunc func(*latest.Stack) (*latest.Owner, error)
    15  }
    16  
    17  func (o *ownerGetterFunc) get(stack *latest.Stack) (*latest.Owner, error) {
    18  	return o.getFunc(stack)
    19  }
    20  
    21  func TestUpdateDeleteSequence(t *testing.T) {
    22  	var return404 bool
    23  	getter := &ownerGetterFunc{
    24  		getFunc: func(stack *latest.Stack) (*latest.Owner, error) {
    25  			if return404 {
    26  				return nil, kerrors.NewNotFound(latest.GroupResource("stacks"), stack.Name)
    27  			}
    28  			return &latest.Owner{
    29  				Owner: impersonation.Config{
    30  					UserName: "test",
    31  				},
    32  			}, nil
    33  		},
    34  	}
    35  	testee := &stackOwnerCache{data: make(map[string]stackOwnerCacheEntry), getter: getter}
    36  
    37  	testStack := &latest.Stack{}
    38  	testStack.Name = "test"
    39  	testStack.Namespace = "ns"
    40  	// as of create
    41  	cfg, _ := testee.getWithRetries(testStack, false)
    42  	assert.Equal(t, "test", cfg.UserName)
    43  	// as of update
    44  	testee.setDirty(stackresources.ObjKey(testStack.Namespace, testStack.Name))
    45  	cfg, _ = testee.getWithRetries(testStack, false)
    46  	assert.Equal(t, "test", cfg.UserName)
    47  	// as of update followed by delete
    48  	testee.setDirty(stackresources.ObjKey(testStack.Namespace, testStack.Name))
    49  	return404 = true
    50  	cfg, _ = testee.getWithRetries(testStack, false)
    51  	assert.Equal(t, "test", cfg.UserName)
    52  	// as of delete
    53  	cfg, _ = testee.getWithRetries(testStack, true)
    54  	assert.Equal(t, "test", cfg.UserName)
    55  	testee.remove(stackresources.ObjKey(testStack.Namespace, testStack.Name))
    56  
    57  }
    58  
    59  // this is a test to reproduce the hang of DockerCon EU 2018
    60  // that occurred because of an informer's "delete" event missed triggered by
    61  // the demo machine going to sleep at a particularly bad time, and etcd compaction occurring
    62  // just after.
    63  func TestStackOwnerCachePanicOnUnresolvableOwner(t *testing.T) {
    64  	getter := &ownerGetterFunc{
    65  		getFunc: func(stack *latest.Stack) (*latest.Owner, error) {
    66  			return nil, kerrors.NewNotFound(latest.GroupResource("stacks"), stack.Name)
    67  		},
    68  	}
    69  	testee := &stackOwnerCache{data: make(map[string]stackOwnerCacheEntry), getter: getter}
    70  	testStack := &latest.Stack{}
    71  	testStack.Name = "test"
    72  	testStack.Namespace = "ns"
    73  	_, err := testee.getWithRetries(testStack, true)
    74  	assert.Error(t, err)
    75  }