Add permission tests

Author: KodaiD

integration-test/src/main/java/com/scalar/db/api/DistributedStorageAdminPermissionIntegrationTestBase.java

@@ -308,6 +308,17 @@ public void addNewColumnToTable_WithSufficientPermission_ShouldSucceed()
         .doesNotThrowAnyException();
   }
 
+  @Test
+  public void dropColumnFromTable_WithSufficientPermission_ShouldSucceed()
+      throws ExecutionException {
+    // Arrange
+    createNamespaceByRoot();
+    createTableByRoot();
+    // Act Assert
+    assertThatCode(() -> adminForNormalUser.dropColumnFromTable(NAMESPACE, TABLE, COL_NAME3))
+        .doesNotThrowAnyException();
+  }
+
   @Test
   public void importTable_WithSufficientPermission_ShouldSucceed() throws Exception {
     // Arrange