Add unit tests for KubernetesCluster, Tenant, ServiceInstance, and RegisterClusterHandler

- Implement tests for KubernetesCluster including registration, connectivity status, and error handling.
- Create tests for Tenant creation, member management, and status changes.
- Add tests for ServiceInstance provisioning and state management.
- Introduce RegisterClusterHandler tests to validate registration requests and error scenarios.
- Set up project files for new test projects with necessary dependencies.

Charts/entkube/templates/_helpers.tpl

@@ -0,0 +1,67 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "entkube.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+*/}}
+{{- define "entkube.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "entkube.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "entkube.labels" -}}
+helm.sh/chart: {{ include "entkube.chart" . }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+
+{{/*
+Selector labels for a specific component
+*/}}
+{{- define "entkube.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "entkube.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Image reference helper
+*/}}
+{{- define "entkube.image" -}}
+{{- $registry := .root.Values.image.registry -}}
+{{- $repository := .component.image.repository -}}
+{{- $tag := default .root.Chart.AppVersion .root.Values.image.tag -}}
+{{- printf "%s/%s:%s" $registry $repository $tag -}}
+{{- end }}
+
+{{/*
+Service account name
+*/}}
+{{- define "entkube.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "entkube.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}