terraform/internal/command/e2etest/providers_mirror_test.go

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package e2etest
import (
"io/ioutil"
"os"
"path/filepath"
"sort"
"testing"
"github.com/google/go-cmp/cmp"
"github.com/hashicorp/terraform/internal/e2e"
)
// The tests in this file are for the "terraform providers mirror" command,
// which is tested in an e2etest mode rather than a unit test mode because it
// interacts directly with Terraform Registry and the full details of that are
// tricky to mock. Such a mock is _possible_, but we're using e2etest as a
// compromise for now to keep these tests relatively simple.
func TestTerraformProvidersMirror(t *testing.T) {
// This test reaches out to releases.hashicorp.com to download the
// template and null providers, so it can only run if network access is
// allowed.
skipIfCannotAccessNetwork(t)
outputDir, err := ioutil.TempDir("", "terraform-e2etest-providers-mirror")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(outputDir)
t.Logf("creating mirror directory in %s", outputDir)
fixturePath := filepath.Join("testdata", "terraform-providers-mirror")
tf := e2e.NewBinary(terraformBin, fixturePath)
defer tf.Close()
stdout, stderr, err := tf.Run("providers", "mirror", "-platform=linux_amd64", "-platform=windows_386", outputDir)
if err != nil {
t.Fatalf("unexpected error: %s\nstdout:\n%s\nstderr:\n%s", err, stdout, stderr)
}
// The test fixture includes exact version constraints for the two
// providers it depends on so that the following should remain stable.
// In the (unlikely) event that these particular versions of these
// providers are removed from the registry, this test will start to fail.
want := []string{
"registry.terraform.io/hashicorp/null/2.1.0.json",
"registry.terraform.io/hashicorp/null/index.json",
"registry.terraform.io/hashicorp/null/terraform-provider-null_2.1.0_linux_amd64.zip",
"registry.terraform.io/hashicorp/null/terraform-provider-null_2.1.0_windows_386.zip",
"registry.terraform.io/hashicorp/template/2.1.1.json",
"registry.terraform.io/hashicorp/template/index.json",
"registry.terraform.io/hashicorp/template/terraform-provider-template_2.1.1_linux_amd64.zip",
"registry.terraform.io/hashicorp/template/terraform-provider-template_2.1.1_windows_386.zip",
}
var got []string
walkErr := filepath.Walk(outputDir, func(path string, info os.FileInfo, err error) error {
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if err != nil {
return err
}
if info.IsDir() {
return nil // we only care about leaf files for this test
}
relPath, err := filepath.Rel(outputDir, path)
if err != nil {
return err
}
got = append(got, filepath.ToSlash(relPath))
return nil
})
if walkErr != nil {
t.Fatal(walkErr)
}
sort.Strings(got)
if diff := cmp.Diff(want, got); diff != "" {
t.Errorf("unexpected files in result\n%s", diff)
}
}