Unit test to ensure install pkg do not import cloud providers.

Signed-off-by: Tiger Kaovilai <[email protected]>

pkg/install/install_test.go

@@ -2,9 +2,15 @@ package install
 
 import (
 	"os"
+	"os/exec"
+	"path/filepath"
+	"regexp"
+	"strings"
 	"testing"
 	"time"
 
+	goruntime "runtime"
+
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/mock"
 	"github.com/stretchr/testify/require"
@@ -147,3 +153,45 @@ func TestDaemonSetIsReady(t *testing.T) {
 	require.NoError(t, err)
 	assert.True(t, ready)
 }
+
+// Prevent https://github.com/vmware-tanzu/velero/issues/8157
+func TestPkgImportNoCloudProvider(t *testing.T) {
+	_, filename, _, ok := goruntime.Caller(0)
+	if !ok {
+		t.Fatalf("No caller information")
+	}
+	t.Logf("Current test file path: %s", filename)
+	t.Logf("Current test directory: %s", filepath.Dir(filename)) // should be "pkg/install"
+	// go list -f {{.Deps}} ./pkg/install/
+	cmd := exec.Command(
+		"go",
+		"list",
+		"-f",
+		"{{.Deps}}",
+		".",
+	)
+	// set cmd.Dir to this package even if executed from different dir
+	cmd.Dir = filepath.Dir(filename)
+	output, err := cmd.Output()
+	require.NoError(t, err)
+	// split dep by line, replace space with newline
+	deps := strings.ReplaceAll(string(output), " ", "\n")
+	require.NotEmpty(t, deps)
+	// ignore k8s.io
+	k8sio, err := regexp.Compile("^k8s.io")
+	require.NoError(t, err)
+	cloudProvider, err := regexp.Compile("aws|gcp|azure")
+	require.NoError(t, err)
+	// depsArr :=[]string{}
+	cloudProviderDeps := []string{}
+	for _, dep := range strings.Split(deps, "\n") {
+		if !k8sio.MatchString(dep) {
+			// depsArr = append(depsArr, dep)
+			if cloudProvider.MatchString(dep) {
+				cloudProviderDeps = append(cloudProviderDeps, dep)
+			}
+		}
+	}
+	// TODO: expected to fail until #8145 rebase
+	require.Empty(t, cloudProviderDeps)
+}