Add new regional BigQuery locations.

Three more regional locations are supported by BigQuery however the
current validation rejects them.

google/resource_bigquery_dataset.go

@@ -72,7 +72,7 @@ func resourceBigQueryDataset() *schema.Resource {
 				Optional:     true,
 				ForceNew:     true,
 				Default:      "US",
-				ValidateFunc: validation.StringInSlice([]string{"US", "EU", "asia-northeast1"}, false),
+				ValidateFunc: validation.StringInSlice([]string{"US", "EU", "asia-northeast1", "australia-southeast1", "asia-southeast1", "europe-west2"}, false),
 			},
 
 			// DefaultTableExpirationMs: [Optional] The default lifetime of all

google/resource_bigquery_dataset_test.go

@@ -87,6 +87,55 @@ func TestAccBigQueryDataset_access(t *testing.T) {
 	})
 }
 
+func TestAccBigQueryDataset_regionalLocation(t *testing.T) {
+	t.Parallel()
+
+	datasetID1 := fmt.Sprintf("tf_test_%s", acctest.RandString(10))
+	datasetID2 := fmt.Sprintf("tf_test_%s", acctest.RandString(10))
+	datasetID3 := fmt.Sprintf("tf_test_%s", acctest.RandString(10))
+	datasetID4 := fmt.Sprintf("tf_test_%s", acctest.RandString(10))
+
+	resource.Test(t, resource.TestCase{
+		PreCheck:     func() { testAccPreCheck(t) },
+		Providers:    testAccProviders,
+		CheckDestroy: testAccCheckBigQueryDatasetDestroy,
+		Steps: []resource.TestStep{
+			{
+				Config: testAccBigQueryRegionalDataset(datasetID1, "asia-northeast1"),
+			},
+			{
+				ResourceName:      "google_bigquery_dataset.test",
+				ImportState:       true,
+				ImportStateVerify: true,
+			},
+			{
+				Config: testAccBigQueryRegionalDataset(datasetID2, "australia-southeast1"),
+			},
+			{
+				ResourceName:      "google_bigquery_dataset.test",
+				ImportState:       true,
+				ImportStateVerify: true,
+			},
+			{
+				Config: testAccBigQueryRegionalDataset(datasetID3, "asia-southeast1"),
+			},
+			{
+				ResourceName:      "google_bigquery_dataset.test",
+				ImportState:       true,
+				ImportStateVerify: true,
+			},
+			{
+				Config: testAccBigQueryRegionalDataset(datasetID4, "europe-west2"),
+			},
+			{
+				ResourceName:      "google_bigquery_dataset.test",
+				ImportState:       true,
+				ImportStateVerify: true,
+			},
+		},
+	})
+}
+
 func testAccCheckBigQueryDatasetDestroy(s *terraform.State) error {
 	config := testAccProvider.Meta().(*Config)
 
@@ -136,6 +185,22 @@ resource "google_bigquery_dataset" "test" {
 }`, datasetID)
 }
 
+func testAccBigQueryRegionalDataset(datasetID string, location string) string {
+	return fmt.Sprintf(`
+resource "google_bigquery_dataset" "test" {
+  dataset_id                  = "%s"
+  friendly_name               = "foo"
+  description                 = "This is a foo description"
+  location                    = "%s"
+  default_table_expiration_ms = 3600000
+
+  labels {
+    env                         = "foo"
+    default_table_expiration_ms = 3600000
+  }
+}`, datasetID, location)
+}
+
 func testAccBigQueryDatasetWithOneAccess(datasetID string) string {
 	return fmt.Sprintf(`
 resource "google_bigquery_dataset" "access_test" {