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tailscale/cmd/k8s-operator/generate/main_test.go

69 lines
2.4 KiB
Go

// Copyright (c) Tailscale Inc & AUTHORS
// SPDX-License-Identifier: BSD-3-Clause
//go:build !plan9 && !windows
package main
import (
"bytes"
"os"
"os/exec"
"path/filepath"
"strings"
"testing"
)
func Test_generate(t *testing.T) {
base, err := os.Getwd()
base = filepath.Join(base, "../../../")
if err != nil {
t.Fatalf("error getting current working directory: %v", err)
}
defer cleanup(base)
if err := generate(base); err != nil {
t.Fatalf("CRD template generation: %v", err)
}
tempDir := t.TempDir()
helmCLIPath := filepath.Join(base, "tool/helm")
helmChartTemplatesPath := filepath.Join(base, "cmd/k8s-operator/deploy/chart")
helmPackageCmd := exec.Command(helmCLIPath, "package", helmChartTemplatesPath, "--destination", tempDir, "--version", "0.0.1")
helmPackageCmd.Stderr = os.Stderr
helmPackageCmd.Stdout = os.Stdout
if err := helmPackageCmd.Run(); err != nil {
t.Fatalf("error packaging Helm chart: %v", err)
}
helmPackagePath := filepath.Join(tempDir, "tailscale-operator-0.0.1.tgz")
helmLintCmd := exec.Command(helmCLIPath, "lint", helmPackagePath)
helmLintCmd.Stderr = os.Stderr
helmLintCmd.Stdout = os.Stdout
if err := helmLintCmd.Run(); err != nil {
t.Fatalf("Helm chart linter failed: %v", err)
}
// Test that default Helm install contains the CRD
installContentsWithCRD := bytes.NewBuffer([]byte{})
helmTemplateWithCRDCmd := exec.Command(helmCLIPath, "template", helmPackagePath)
helmTemplateWithCRDCmd.Stderr = os.Stderr
helmTemplateWithCRDCmd.Stdout = installContentsWithCRD
if err := helmTemplateWithCRDCmd.Run(); err != nil {
t.Fatalf("templating Helm chart with CRDs failed: %v", err)
}
if !strings.Contains(installContentsWithCRD.String(), "name: connectors.tailscale.com") {
t.Errorf("CRD not found in default chart install")
}
// Test that CRD can be excluded from Helm chart install
installContentsWithoutCRD := bytes.NewBuffer([]byte{})
helmTemplateWithoutCRDCmd := exec.Command(helmCLIPath, "template", helmPackagePath, "--set", "installCRDs=false")
helmTemplateWithoutCRDCmd.Stderr = os.Stderr
helmTemplateWithoutCRDCmd.Stdout = installContentsWithoutCRD
if err := helmTemplateWithoutCRDCmd.Run(); err != nil {
t.Fatalf("templating Helm chart without CRDs failed: %v", err)
}
if strings.Contains(installContentsWithoutCRD.String(), "name: connectors.tailscale.com") {
t.Errorf("CRD found in chart install that should not contain a CRD")
}
}