package e2etest import ( "fmt" "io/ioutil" "os" "path/filepath" "strings" "testing" "github.com/hashicorp/terraform/e2e" ) // TestProviderDevOverrides is a test for the special dev_overrides setting // in the provider_installation section of the CLI configuration file, which // is our current answer to smoothing provider development by allowing // developers to opt out of the version number and checksum verification // we normally do, so they can just overwrite the same local executable // in-place to iterate faster. func TestProviderDevOverrides(t *testing.T) { t.Parallel() tf := e2e.NewBinary(terraformBin, "testdata/provider-dev-override") defer tf.Close() // In order to do a decent end-to-end test for this case we will need a // real enough provider plugin to try to run and make sure we are able // to actually run it. For now we'll use the "test" provider for that, // because it happens to be in this repository and therefore allows // us to avoid drawing in anything external, but we might revisit this // strategy in future if other needs cause us to evolve the test // provider in a way that makes it less suitable for this particular test, // such as if it stops being buildable into an independent executable. providerExeDir := filepath.Join(tf.WorkDir(), "pkgdir") providerExePrefix := filepath.Join(providerExeDir, "terraform-provider-test_") providerExe := e2e.GoBuild("github.com/hashicorp/terraform/internal/provider-simple/main", providerExePrefix) t.Logf("temporary provider executable is %s", providerExe) err := ioutil.WriteFile(filepath.Join(tf.WorkDir(), "dev.tfrc"), []byte(fmt.Sprintf(` provider_installation { dev_overrides { "example.com/test/test" = %q } } `, providerExeDir)), os.ModePerm) if err != nil { t.Fatal(err) } tf.AddEnv("TF_CLI_CONFIG_FILE=dev.tfrc") stdout, stderr, err := tf.Run("providers") if err != nil { t.Fatalf("unexpected error: %s\n%s", err, stderr) } if got, want := stdout, `provider[example.com/test/test]`; !strings.Contains(got, want) { t.Errorf("configuration should depend on %s, but doesn't\n%s", want, got) } // NOTE: We're intentionally not running "terraform init" here, because // dev overrides are always ready to use and don't need any special action // to "install" them. This test is mimicking the a happy path of going // directly from "go build" to validate/plan/apply without interacting // with any registries, mirrors, lock files, etc. stdout, _, err = tf.Run("validate") if err != nil { t.Fatalf("unexpected error: %s\n%s", err, stderr) } if got, want := stdout, `The configuration is valid, but`; !strings.Contains(got, want) { t.Errorf("stdout doesn't include the success message\nwant: %s\n%s", want, got) } if got, want := stdout, `Provider development overrides are in effect`; !strings.Contains(got, want) { t.Errorf("stdout doesn't include the warning about development overrides\nwant: %s\n%s", want, got) } }