test(core): add ValueNodeTest

Author: Siroshun09

core/src/test/java/com/github/siroshun09/configapi/core/node/ValueNodeTest.java

@@ -0,0 +1,101 @@
+/*
+ *     Copyright 2024 Siroshun09
+ *
+ *     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.github.siroshun09.configapi.core.node;
+
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.atomic.AtomicLong;
+import java.util.stream.Stream;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertInstanceOf;
+import static org.junit.jupiter.api.Assertions.assertSame;
+
+class ValueNodeTest extends AbstractNodeTest<ValueNode<?>> {
+
+    // Test cases for ValueNodes are in ValueNodeTest#fromObjectTestCases
+    @Override
+    @Disabled
+    void testNode(NodeTestCase<ValueNode<?>> testCase) {
+        super.testNode(testCase);
+    }
+
+    @Override
+    protected Stream<NodeTestCase<ValueNode<?>>> nodeTestCases() {
+        return Stream.of();
+    }
+
+    @Override
+    void testFromObject(FromObjectTestCase<ValueNode<?>> testCase) {
+        super.testFromObject(testCase);
+        var node = Node.fromObject(testCase.object());
+        assertSame(node, Node.fromObject(node)); // ValueNode should be returned as-is from Node#fromObject
+    }
+
+    @Override
+    protected ValueNode<?> cast(Node<?> node) {
+        return (ValueNode<?>) node;
+    }
+
+    @Override
+    protected Stream<FromObjectTestCase<ValueNode<?>>> fromObjectTestCases() {
+        return Stream.of(
+                fromObjectTest(true, node -> assertSame(BooleanValue.TRUE, node)),
+                fromObjectTest(false, node -> assertSame(BooleanValue.FALSE, node)),
+                fromObjectTest((byte) 1, node -> assertEquals((byte) 1, assertInstanceOf(ByteValue.class, node).value())),
+                fromObjectTest('a', node -> assertEquals('a', assertInstanceOf(CharValue.class, node).value())),
+                fromObjectTest(3.14, node -> assertEquals(3.14, assertInstanceOf(DoubleValue.class, node).value())),
+                fromObjectTest(ExampleEnum.A, node -> assertEquals(ExampleEnum.A, assertInstanceOf(EnumValue.class, node).value())),
+                fromObjectTest(3.14f, node -> assertEquals(3.14f, assertInstanceOf(FloatValue.class, node).value())),
+                fromObjectTest(1, node -> assertEquals(1, assertInstanceOf(IntValue.class, node).value())),
+                fromObjectTest(1L, node -> assertEquals(1L, assertInstanceOf(LongValue.class, node).value())),
+                fromObjectTest((short) 1, node -> assertEquals((short) 1, assertInstanceOf(ShortValue.class, node).value())),
+                fromObjectTest("a", node -> assertEquals("a", assertInstanceOf(StringValue.class, node).value())),
+
+                // Additional number supports
+                fromObjectTest(new AtomicInteger(1), node -> assertEquals(1, assertInstanceOf(IntValue.class, node).value())),
+                fromObjectTest(new AtomicLong(1), node -> assertEquals(1L, assertInstanceOf(LongValue.class, node).value()))
+                );
+    }
+
+    private enum ExampleEnum {
+        A
+    }
+
+    @Nested
+    class BooleanValueTest {
+        @Test
+        void testFromBoolean() {
+            assertSame(BooleanValue.TRUE, BooleanValue.fromBoolean(Boolean.TRUE));
+            assertSame(BooleanValue.FALSE, BooleanValue.fromBoolean(Boolean.FALSE));
+
+            assertSame(BooleanValue.TRUE, BooleanValue.fromBoolean(true));
+            assertSame(BooleanValue.FALSE, BooleanValue.fromBoolean(false));
+        }
+    }
+
+    @Nested
+    class NumberValueTest {
+        @Test
+        void testNullForFromNumber() {
+            assertSame(NumberValue.ZERO, NumberValue.fromNumber(null));
+        }
+    }
+}