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DeleteModelIT.java
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/
DeleteModelIT.java
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/*
* Copyright 2020 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.bigquery;
import static com.google.common.truth.Truth.assertThat;
import static junit.framework.TestCase.assertNotNull;
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import java.util.UUID;
import org.junit.After;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
public class DeleteModelIT {
private String modelName;
private ByteArrayOutputStream bout;
private PrintStream out;
private static final String BIGQUERY_DATASET_NAME = requireEnvVar("BIGQUERY_DATASET_NAME");
private static String requireEnvVar(String varName) {
String value = System.getenv(varName);
assertNotNull(
"Environment variable " + varName + " is required to perform these tests.",
System.getenv(varName));
return value;
}
@BeforeClass
public static void checkRequirements() {
requireEnvVar("BIGQUERY_DATASET_NAME");
}
@Before
public void setUp() {
bout = new ByteArrayOutputStream();
out = new PrintStream(bout);
System.setOut(out);
// Create a new model to be deleted
modelName = "MY_MODEL_NAME_TEST_" + UUID.randomUUID().toString().substring(0, 8);
String sql =
"CREATE MODEL `"
+ BIGQUERY_DATASET_NAME
+ "."
+ modelName
+ "`"
+ "OPTIONS ( "
+ "model_type='linear_reg', "
+ "max_iteration=1, "
+ "learn_rate=0.4, "
+ "learn_rate_strategy='constant' "
+ ") AS ( "
+ " SELECT 'a' AS f1, 2.0 AS label "
+ "UNION ALL "
+ "SELECT 'b' AS f1, 3.8 AS label "
+ ")";
CreateModel.createModel(sql);
bout = new ByteArrayOutputStream();
out = new PrintStream(bout);
System.setOut(out);
}
@After
public void tearDown() {
System.setOut(null);
}
@Test
public void testDeleteModel() {
// Delete the model that was just created
DeleteModel.deleteModel(BIGQUERY_DATASET_NAME, modelName);
assertThat(bout.toString()).contains("Model deleted successfully");
}
}