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在编写 Immutable 类的测试方法时,主要关注以下几个方面:
@Test
public void testConstructor() {
ImmutableClass obj = new ImmutableClass("value1", 42);
assertEquals("value1", obj.getProperty1());
assertEquals(42, obj.getProperty2());
}
@Test(expected = IllegalArgumentException.class)
public void testConstructorWithInvalidParameters() {
new ImmutableClass(null, -1);
}
@Test
public void testGetterMethods() {
ImmutableClass obj = new ImmutableClass("value1", 42);
assertEquals("value1", obj.getProperty1());
assertEquals(42, obj.getProperty2());
}
@Test
public void testImmutability() {
ImmutableClass obj = new ImmutableClass("value1", 42);
obj.setProperty1("new value");
assertEquals("value1", obj.getProperty1());
}
@Test
public void testEqualsAndHashCode() {
ImmutableClass obj1 = new ImmutableClass("value1", 42);
ImmutableClass obj2 = new ImmutableClass("value1", 42);
ImmutableClass obj3 = new ImmutableClass("value2", 24);
assertTrue(obj1.equals(obj2));
assertFalse(obj1.equals(obj3));
assertEquals(obj1.hashCode(), obj2.hashCode());
assertNotEquals(obj1.hashCode(), obj3.hashCode());
}
@Test
public void testToString() {
ImmutableClass obj = new ImmutableClass("value1", 42);
assertEquals("ImmutableClass{property1='value1', property2=42}", obj.toString());
}
@Test
public void testCollectionCompatibility() {
List<ImmutableClass> list = new ArrayList<>();
list.add(new ImmutableClass("value1", 42));
list.add(new ImmutableClass("value2", 24));
assertEquals(2, list.size());
assertTrue(list.contains(new ImmutableClass("value1", 42)));
}
根据你的 Immutable 类的具体实现,可以适当调整这些测试方法。
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