public static List<UpdateRequirement> forUpdateTable(
      TableMetadata base, List<MetadataUpdate> metadataUpdates) {
    Preconditions.checkArgument(null != base, "Invalid table metadata: null");
    Preconditions.checkArgument(null != metadataUpdates, "Invalid metadata updates: null");
    Builder builder = new Builder(base, false);
    builder.require(new UpdateRequirement.AssertTableUUID(base.uuid()));
    metadataUpdates.forEach(builder::update);
    return builder.build();
  }
@Test
  public void addSchema() {
    int lastColumnId = 1;
    when(metadata.lastColumnId()).thenReturn(lastColumnId);
    List<UpdateRequirement> requirements =
        UpdateRequirements.forUpdateTable(
            metadata,
            ImmutableList.of(
                new MetadataUpdate.AddSchema(new Schema(), lastColumnId),
                new MetadataUpdate.AddSchema(new Schema(), lastColumnId + 1),
                new MetadataUpdate.AddSchema(new Schema(), lastColumnId + 2)));
    requirements.forEach(req -> req.validate(metadata));

    assertThat(requirements)
        .hasSize(2)
        .hasOnlyElementsOfTypes(
            UpdateRequirement.AssertTableUUID.class,
            UpdateRequirement.AssertLastAssignedFieldId.class);

    assertTableUUID(requirements);

    assertThat(requirements)
        .element(1)
        .asInstanceOf(
            InstanceOfAssertFactories.type(UpdateRequirement.AssertLastAssignedFieldId.class))
        .extracting(UpdateRequirement.AssertLastAssignedFieldId::lastAssignedFieldId)
        .isEqualTo(lastColumnId);
  }