replace engine_version with names.AttrEngineVersion

Author: tabito-hara

internal/service/opensearch/package.go

@@ -42,7 +42,7 @@ func resourcePackage() *schema.Resource {
 				Type:     schema.TypeString,
 				Computed: true,
 			},
-			"engine_version": {
+			names.AttrEngineVersion: {
 				Type:         schema.TypeString,
 				Optional:     true,
 				ForceNew:     true,
@@ -103,7 +103,7 @@ func resourcePackageCreate(ctx context.Context, d *schema.ResourceData, meta any
 		PackageType:        awstypes.PackageType(d.Get("package_type").(string)),
 	}
 
-	if v, ok := d.GetOk("engine_version"); ok {
+	if v, ok := d.GetOk(names.AttrEngineVersion); ok {
 		input.EngineVersion = aws.String(v.(string))
 	}
 
@@ -142,7 +142,7 @@ func resourcePackageRead(ctx context.Context, d *schema.ResourceData, meta any)
 	}
 
 	d.Set("available_package_version", pkg.AvailablePackageVersion)
-	d.Set("engine_version", pkg.EngineVersion)
+	d.Set(names.AttrEngineVersion, pkg.EngineVersion)
 	d.Set("package_description", pkg.PackageDescription)
 	d.Set("package_id", pkg.PackageID)
 	d.Set("package_name", pkg.PackageName)

internal/service/opensearch/package_test.go

@@ -71,7 +71,7 @@ func TestAccOpenSearchPackage_packageTypeZipPlugin(t *testing.T) {
 				Check: resource.ComposeAggregateTestCheckFunc(
 					testAccCheckPackageExists(ctx, resourceName),
 					resource.TestCheckResourceAttr(resourceName, "available_package_version", "v1"),
-					resource.TestCheckResourceAttr(resourceName, "engine_version", "OpenSearch_2.17"),
+					resource.TestCheckResourceAttr(resourceName, names.AttrEngineVersion, "OpenSearch_2.17"),
 					resource.TestCheckResourceAttr(resourceName, "package_description", ""),
 					resource.TestCheckResourceAttrSet(resourceName, "package_id"),
 					resource.TestCheckResourceAttr(resourceName, "package_name", pkgName),