charts/falco/charts/k8s-metacollector/tests/unit/defaultResources_test.go
2024-03-20 18:06:21 +08:00

77 lines
2.2 KiB
Go

// SPDX-License-Identifier: Apache-2.0
// Copyright 2024 The Falco Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package unit
import (
"path/filepath"
"regexp"
"strings"
"testing"
"github.com/gruntwork-io/terratest/modules/helm"
"github.com/stretchr/testify/require"
"k8s.io/utils/strings/slices"
)
const chartPath = "../../"
// Using the default values we want to test that all the expected resources are rendered.
func TestRenderedResourcesWithDefaultValues(t *testing.T) {
t.Parallel()
helmChartPath, err := filepath.Abs(chartPath)
require.NoError(t, err)
releaseName := "rendered-resources"
// Template files that we expect to be rendered.
templateFiles := []string{
"clusterrole.yaml",
"clusterrolebinding.yaml",
"deployment.yaml",
"service.yaml",
"serviceaccount.yaml",
}
require.NoError(t, err)
options := &helm.Options{}
// Template the chart using the default values.yaml file.
output, err := helm.RenderTemplateE(t, options, helmChartPath, releaseName, nil)
require.NoError(t, err)
// Extract all rendered files from the output.
pattern := `# Source: k8s-metacollector/templates/([^\n]+)`
re := regexp.MustCompile(pattern)
matches := re.FindAllStringSubmatch(output, -1)
var renderedTemplates []string
for _, match := range matches {
// Filter out test templates.
if !strings.Contains(match[1], "test-") {
renderedTemplates = append(renderedTemplates, match[1])
}
}
// Assert that the rendered resources are equal tho the expected ones.
require.Equal(t, len(renderedTemplates), len(templateFiles), "should be equal")
for _, rendered := range renderedTemplates {
require.True(t, slices.Contains(templateFiles, rendered), "template files should contain all the rendered files")
}
}