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Validating SQL Types Support Implementation in google/gson

This test suite validates SQL data type support in the GSON library, focusing on date and timestamp handling capabilities. It ensures proper initialization and availability of SQL type factories and date type configurations essential for JSON-SQL data conversion.

Test Coverage Overview

The test coverage focuses on validating core SQL type support functionality in GSON.

Key areas tested include:

SQL Types support flag verification
Date and Timestamp type initialization validation
Factory object availability for Date, Time, and Timestamp conversions

The suite ensures comprehensive coverage of essential SQL data type handling components.

Implementation Analysis

The testing approach employs JUnit with Google Truth assertions for precise verification.

Key implementation patterns include:

Boolean flag validation for SQL support
Null checks for type definitions
Factory object instantiation verification

The tests utilize Truth’s fluent assertion syntax for improved readability and maintainability.

Technical Details

Testing infrastructure includes:

JUnit 4 testing framework
Google Truth assertion library
GSON internal SQL type support classes
Java SQL type definitions

Configuration is minimal, focusing on core type support verification.

Best Practices Demonstrated

The test suite exemplifies several testing best practices:

Single responsibility principle in test methods
Clear and descriptive test naming
Comprehensive validation of related components
Use of modern assertion libraries for improved test clarity

google/gson

gson/src/test/java/com/google/gson/internal/sql/SqlTypesSupportTest.java

            
/*
 * Copyright (C) 2020 Google Inc.
 *
 * 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.google.gson.internal.sql;

import static com.google.common.truth.Truth.assertThat;

import org.junit.Test;

public class SqlTypesSupportTest {
  @Test
  public void testSupported() {
    assertThat(SqlTypesSupport.SUPPORTS_SQL_TYPES).isTrue();

    assertThat(SqlTypesSupport.DATE_DATE_TYPE).isNotNull();
    assertThat(SqlTypesSupport.TIMESTAMP_DATE_TYPE).isNotNull();

    assertThat(SqlTypesSupport.DATE_FACTORY).isNotNull();
    assertThat(SqlTypesSupport.TIME_FACTORY).isNotNull();
    assertThat(SqlTypesSupport.TIMESTAMP_FACTORY).isNotNull();
  }
}