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expectation.go
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expectation.go
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package app
import (
"context"
"fmt"
"regexp"
"strings"
"github.com/argoproj/gitops-engine/pkg/health"
. "github.com/argoproj/gitops-engine/pkg/sync/common"
v1 "k8s.io/api/core/v1"
apierr "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/fields"
. "github.com/argoproj/argo-cd/v2/pkg/apis/application/v1alpha1"
"github.com/argoproj/argo-cd/v2/test/e2e/fixture"
)
type state = string
const (
failed = "failed"
pending = "pending"
succeeded = "succeeded"
)
type Expectation func(c *Consequences) (state state, message string)
func OperationPhaseIs(expected OperationPhase) Expectation {
return func(c *Consequences) (state, string) {
operationState := c.app().Status.OperationState
actual := OperationRunning
if operationState != nil {
actual = operationState.Phase
}
return simple(actual == expected, fmt.Sprintf("operation phase should be %s, is %s", expected, actual))
}
}
func OperationMessageContains(text string) Expectation {
return func(c *Consequences) (state, string) {
operationState := c.app().Status.OperationState
actual := ""
if operationState != nil {
actual = operationState.Message
}
return simple(strings.Contains(actual, text), fmt.Sprintf("operation message should contains '%s', got: '%s'", text, actual))
}
}
func simple(success bool, message string) (state, string) {
if success {
return succeeded, message
} else {
return pending, message
}
}
func SyncStatusIs(expected SyncStatusCode) Expectation {
return func(c *Consequences) (state, string) {
actual := c.app().Status.Sync.Status
return simple(actual == expected, fmt.Sprintf("sync status to be %s, is %s", expected, actual))
}
}
func Condition(conditionType ApplicationConditionType, conditionMessage string) Expectation {
return func(c *Consequences) (state, string) {
got := c.app().Status.Conditions
message := fmt.Sprintf("condition {%s %s} in %v", conditionType, conditionMessage, got)
for _, condition := range got {
if conditionType == condition.Type && strings.Contains(condition.Message, conditionMessage) {
return succeeded, message
}
}
return pending, message
}
}
func NoConditions() Expectation {
return func(c *Consequences) (state, string) {
message := "no conditions"
if len(c.app().Status.Conditions) == 0 {
return succeeded, message
}
return pending, message
}
}
func HealthIs(expected health.HealthStatusCode) Expectation {
return func(c *Consequences) (state, string) {
actual := c.app().Status.Health.Status
return simple(actual == expected, fmt.Sprintf("health to should %s, is %s", expected, actual))
}
}
func ResourceSyncStatusIs(kind, resource string, expected SyncStatusCode) Expectation {
return func(c *Consequences) (state, string) {
actual := c.resource(kind, resource, "").Status
return simple(actual == expected, fmt.Sprintf("resource '%s/%s' sync status should be %s, is %s", kind, resource, expected, actual))
}
}
func ResourceSyncStatusWithNamespaceIs(kind, resource, namespace string, expected SyncStatusCode) Expectation {
return func(c *Consequences) (state, string) {
actual := c.resource(kind, resource, namespace).Status
return simple(actual == expected, fmt.Sprintf("resource '%s/%s' sync status should be %s, is %s", kind, resource, expected, actual))
}
}
func ResourceHealthIs(kind, resource string, expected health.HealthStatusCode) Expectation {
return func(c *Consequences) (state, string) {
actual := c.resource(kind, resource, "").Health.Status
return simple(actual == expected, fmt.Sprintf("resource '%s/%s' health should be %s, is %s", kind, resource, expected, actual))
}
}
func ResourceHealthWithNamespaceIs(kind, resource, namespace string, expected health.HealthStatusCode) Expectation {
return func(c *Consequences) (state, string) {
actual := c.resource(kind, resource, namespace).Health.Status
return simple(actual == expected, fmt.Sprintf("resource '%s/%s' health should be %s, is %s", kind, resource, expected, actual))
}
}
func ResourceResultNumbering(num int) Expectation {
return func(c *Consequences) (state, string) {
actualNum := len(c.app().Status.OperationState.SyncResult.Resources)
if actualNum < num {
return pending, fmt.Sprintf("not enough results yet, want %d, got %d", num, actualNum)
} else if actualNum == num {
return succeeded, fmt.Sprintf("right number of results, want %d, got %d", num, actualNum)
} else {
return failed, fmt.Sprintf("too many results, want %d, got %d", num, actualNum)
}
}
}
func ResourceResultIs(result ResourceResult) Expectation {
return func(c *Consequences) (state, string) {
results := c.app().Status.OperationState.SyncResult.Resources
for _, res := range results {
if *res == result {
return succeeded, fmt.Sprintf("found resource result %v", result)
}
}
return pending, fmt.Sprintf("waiting for resource result %v in %v", result, results)
}
}
func sameResourceResult(res1, res2 ResourceResult) bool {
return res1.Kind == res2.Kind &&
res1.Group == res2.Group &&
res1.Namespace == res2.Namespace &&
res1.Name == res2.Name &&
res1.SyncPhase == res2.SyncPhase &&
res1.Status == res2.Status &&
res1.HookPhase == res2.HookPhase
}
func ResourceResultMatches(result ResourceResult) Expectation {
return func(c *Consequences) (state, string) {
results := c.app().Status.OperationState.SyncResult.Resources
for _, res := range results {
if sameResourceResult(*res, result) {
re := regexp.MustCompile(result.Message)
if re.MatchString(res.Message) {
return succeeded, fmt.Sprintf("found resource result %v", result)
}
}
}
return pending, fmt.Sprintf("waiting for resource result %v in %v", result, results)
}
}
func DoesNotExist() Expectation {
return func(c *Consequences) (state, string) {
_, err := c.get()
if err != nil {
if apierr.IsNotFound(err) {
return succeeded, "app does not exist"
}
return failed, err.Error()
}
return pending, "app should not exist"
}
}
func Pod(predicate func(p v1.Pod) bool) Expectation {
return func(c *Consequences) (state, string) {
pods, err := pods()
if err != nil {
return failed, err.Error()
}
for _, pod := range pods.Items {
if predicate(pod) {
return succeeded, fmt.Sprintf("pod predicate matched pod named '%s'", pod.GetName())
}
}
return pending, "pod predicate does not match pods"
}
}
func NotPod(predicate func(p v1.Pod) bool) Expectation {
return func(c *Consequences) (state, string) {
pods, err := pods()
if err != nil {
return failed, err.Error()
}
for _, pod := range pods.Items {
if predicate(pod) {
return pending, fmt.Sprintf("pod predicate matched pod named '%s'", pod.GetName())
}
}
return succeeded, "pod predicate did not match any pod"
}
}
func pods() (*v1.PodList, error) {
fixture.KubeClientset.CoreV1()
pods, err := fixture.KubeClientset.CoreV1().Pods(fixture.DeploymentNamespace()).List(context.Background(), metav1.ListOptions{})
return pods, err
}
func Event(reason string, message string) Expectation {
return func(c *Consequences) (state, string) {
list, err := fixture.KubeClientset.CoreV1().Events(fixture.ArgoCDNamespace).List(context.Background(), metav1.ListOptions{
FieldSelector: fields.SelectorFromSet(map[string]string{
"involvedObject.name": c.context.name,
"involvedObject.namespace": fixture.ArgoCDNamespace,
}).String(),
})
if err != nil {
return failed, err.Error()
}
for i := range list.Items {
event := list.Items[i]
if event.Reason == reason && strings.Contains(event.Message, message) {
return succeeded, fmt.Sprintf("found event with reason=%s; message=%s", reason, message)
}
}
return failed, fmt.Sprintf("unable to find event with reason=%s; message=%s", reason, message)
}
}
// asserts that the last command was successful
func Success(message string) Expectation {
return func(c *Consequences) (state, string) {
if c.actions.lastError != nil {
return failed, "error"
}
if !strings.Contains(c.actions.lastOutput, message) {
return failed, fmt.Sprintf("output did not contain '%s'", message)
}
return succeeded, fmt.Sprintf("no error and output contained '%s'", message)
}
}
// asserts that the last command was an error with substring match
func Error(message, err string) Expectation {
return func(c *Consequences) (state, string) {
if c.actions.lastError == nil {
return failed, "no error"
}
if !strings.Contains(c.actions.lastOutput, message) {
return failed, fmt.Sprintf("output does not contain '%s'", message)
}
if !strings.Contains(c.actions.lastError.Error(), err) {
return failed, fmt.Sprintf("error does not contain '%s'", message)
}
return succeeded, fmt.Sprintf("error '%s'", message)
}
}