e2e tests for functions

cmd/config/internal/commands/e2e/e2econtainerconfig/main.go

@@ -0,0 +1,50 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"sigs.k8s.io/kustomize/kyaml/fn/framework"
+	"sigs.k8s.io/kustomize/kyaml/yaml"
+)
+
+func main() {
+	type Data struct {
+		StringValue string `yaml:"stringValue,omitempty"`
+
+		IntValue int `yaml:"intValue,omitempty"`
+
+		BoolValue bool `yaml:"boolValue,omitempty"`
+	}
+	type ExampleServiceGenerator struct {
+		Data Data `yaml:"data,omitempty"`
+	}
+	functionConfig := &ExampleServiceGenerator{}
+
+	cmd := framework.Command(functionConfig, func(items []*yaml.RNode) ([]*yaml.RNode, error) {
+		for i := range items {
+			if err := items[i].PipeE(yaml.SetAnnotation("a-string-value",
+				functionConfig.Data.StringValue)); err != nil {
+				return nil, err
+			}
+
+			if err := items[i].PipeE(yaml.SetAnnotation("a-int-value",
+				fmt.Sprintf("%v", functionConfig.Data.IntValue))); err != nil {
+				return nil, err
+			}
+
+			if err := items[i].PipeE(yaml.SetAnnotation("a-bool-value",
+				fmt.Sprintf("%v", functionConfig.Data.BoolValue))); err != nil {
+				return nil, err
+			}
+		}
+		return items, nil
+	})
+
+	if err := cmd.Execute(); err != nil {
+		os.Exit(1)
+	}
+}