importstate: Expect an error when plannable import is not supported (#460)

* Prepare to move test to a directory

* Move test to import_test package

* Extract testprovider resource from test

* More test provider extraction

* Add a test expecting fail when plannable import is not supported

* Move test to importstate package

* go fmt

* Require plannable import only sometimes

* TIdy version checks

* lint

* Update TerraformVersionChecks

Author: bbasata

helper/resource/importstate/examplecloud_test.go

@@ -0,0 +1,118 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
+package importstate_test
+
+import (
+	"github.com/hashicorp/terraform-plugin-go/tfprotov6"
+	"github.com/hashicorp/terraform-plugin-go/tftypes"
+	"github.com/hashicorp/terraform-plugin-testing/internal/testing/testprovider"
+	"github.com/hashicorp/terraform-plugin-testing/internal/testing/testsdk/datasource"
+	"github.com/hashicorp/terraform-plugin-testing/internal/testing/testsdk/resource"
+)
+
+func examplecloudDataSource() testprovider.DataSource {
+	return testprovider.DataSource{
+		ReadResponse: &datasource.ReadResponse{
+			State: tftypes.NewValue(
+				tftypes.Object{
+					AttributeTypes: map[string]tftypes.Type{
+						"id": tftypes.String,
+					},
+				},
+				map[string]tftypes.Value{
+					"id": tftypes.NewValue(tftypes.String, "datasource-test"),
+				},
+			),
+		},
+		SchemaResponse: &datasource.SchemaResponse{
+			Schema: &tfprotov6.Schema{
+				Block: &tfprotov6.SchemaBlock{
+					Attributes: []*tfprotov6.SchemaAttribute{
+						{
+							Name:     "id",
+							Type:     tftypes.String,
+							Computed: true,
+						},
+					},
+				},
+			},
+		},
+	}
+}
+
+func examplecloudResource() testprovider.Resource {
+	return testprovider.Resource{
+		CreateResponse: &resource.CreateResponse{
+			NewState: tftypes.NewValue(
+				tftypes.Object{
+					AttributeTypes: map[string]tftypes.Type{
+						"id":       tftypes.String,
+						"location": tftypes.String,
+						"name":     tftypes.String,
+					},
+				},
+				map[string]tftypes.Value{
+					"id":       tftypes.NewValue(tftypes.String, "westeurope/somevalue"),
+					"location": tftypes.NewValue(tftypes.String, "westeurope"),
+					"name":     tftypes.NewValue(tftypes.String, "somevalue"),
+				},
+			),
+		},
+		ReadResponse: &resource.ReadResponse{
+			NewState: tftypes.NewValue(
+				tftypes.Object{
+					AttributeTypes: map[string]tftypes.Type{
+						"id":       tftypes.String,
+						"location": tftypes.String,
+						"name":     tftypes.String,
+					},
+				},
+				map[string]tftypes.Value{
+					"id":       tftypes.NewValue(tftypes.String, "westeurope/somevalue"),
+					"location": tftypes.NewValue(tftypes.String, "westeurope"),
+					"name":     tftypes.NewValue(tftypes.String, "somevalue"),
+				},
+			),
+		},
+		ImportStateResponse: &resource.ImportStateResponse{
+			State: tftypes.NewValue(
+				tftypes.Object{
+					AttributeTypes: map[string]tftypes.Type{
+						"id":       tftypes.String,
+						"location": tftypes.String,
+						"name":     tftypes.String,
+					},
+				},
+				map[string]tftypes.Value{
+					"id":       tftypes.NewValue(tftypes.String, "westeurope/somevalue"),
+					"location": tftypes.NewValue(tftypes.String, "westeurope"),
+					"name":     tftypes.NewValue(tftypes.String, "somevalue"),
+				},
+			),
+		},
+		SchemaResponse: &resource.SchemaResponse{
+			Schema: &tfprotov6.Schema{
+				Block: &tfprotov6.SchemaBlock{
+					Attributes: []*tfprotov6.SchemaAttribute{
+						{
+							Name:     "id",
+							Type:     tftypes.String,
+							Computed: true,
+						},
+						{
+							Name:     "location",
+							Type:     tftypes.String,
+							Required: true,
+						},
+						{
+							Name:     "name",
+							Type:     tftypes.String,
+							Required: true,
+						},
+					},
+				},
+			},
+		},
+	}
+}