/*
    * Licensed to the Apache Software Foundation (ASF) under one or more
    * contributor license agreements.  See the NOTICE file distributed with
    * this work for additional information regarding copyright ownership.
    * The ASF licenses this file to You 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 org.apache.juneau.junit.bct;
  
  import static org.apache.juneau.junit.bct.BctAssertions.*;
  import static org.apache.juneau.junit.bct.BctUtils.*;
  import static org.junit.jupiter.api.Assertions.*;
  
  import org.apache.juneau.*;
  import org.junit.jupiter.api.*;
  
  /**
   * Unit tests for the {@link BctUtils} utility class.
   *
   * <p>This test class validates BCT-specific utility methods including assertion helpers,
   * tokenization, and convenience aliases for common operations.
   */
  @DisplayName("BctUtils")
  class BctUtils_Test extends TestBase {
  
  	// ====================================================================================================
  	// Assertion Helper Tests
  	// ====================================================================================================
  
  	@Test
  	@DisplayName("assertEqualsFailed() - Basic error creation")
  	void a01_assertEqualsFailedBasicCreation() {
  		var error = assertEqualsFailed("expected", "actual", null);
  
  		assertEquals("Equals assertion failed. ==> expected: <expected> but was: <actual>", error.getMessage());
  		assertEquals("expected", error.getExpected().getValue());
  		assertEquals("actual", error.getActual().getValue());
  	}
  
  	@Test
  	@DisplayName("assertEqualsFailed() - With custom message")
  	void a02_assertEqualsFailedCustomMessage() {
  		var error = assertEqualsFailed(100, 200, () -> "Custom validation failed");
  
  		assertEquals("Custom validation failed ==> expected: <100> but was: <200>", error.getMessage());
  	}
  
  	@Test
  	@DisplayName("assertEqualsFailed() - Null values")
  	void a03_assertEqualsFailedNullValues() {
  		// Null expected
  		var error1 = assertEqualsFailed(null, "actual", null);
  		assertEquals("Equals assertion failed. ==> expected: <null> but was: <actual>", error1.getMessage());
  
  		// Null actual
  		var error2 = assertEqualsFailed("expected", null, null);
  		assertEquals("Equals assertion failed. ==> expected: <expected> but was: <null>", error2.getMessage());
  
  		// Both null
  		var error3 = assertEqualsFailed(null, null, null);
  		assertEquals("Equals assertion failed. ==> expected: <null> but was: <null>", error3.getMessage());
  	}
  
  	// ====================================================================================================
  	// Tokenization Tests
  	// ====================================================================================================
  
  	@Test
  	@DisplayName("tokenize() - Basic tokenization")
  	void d01_tokenizeBasic() {
  		var tokens = tokenize("name,age,city");
  		assertList(tokens.stream().map(t -> t.getValue()).toList(), "name", "age", "city");
  
  		// Each should have no nested fields
  		tokens.forEach(t -> assertEmpty(t.getNested()));
  	}
  
  	@Test
  	@DisplayName("tokenize() - Nested fields")
  	void d02_tokenizeNested() {
  		var tokens = tokenize("name,address{street,city,zip},age");
  
  		assertSize(3, tokens);
  		assertEquals("name", tokens.get(0).getValue());
  		assertEmpty(tokens.get(0).getNested());
  
  		assertEquals("address", tokens.get(1).getValue());
  		var nested = tokens.get(1).getNested();
  		assertList(nested.stream().map(t -> t.getValue()).toList(), "street", "city", "zip");
  
 		assertEquals("age", tokens.get(2).getValue());
 		assertEmpty(tokens.get(2).getNested());
 	}
 }