Best Assertj code snippet using org.assertj.core.util.introspection.PropertySupport.nextPropertyNameFrom
Source: PropertySupport.java
...67 if (isNestedProperty(propertyName)) {68 String firstPropertyName = popPropertyNameFrom(propertyName);69 Iterable<Object> propertyValues = propertyValues(firstPropertyName, Object.class, target);70 // extract next sub-property values until reaching the last sub-property71 return propertyValues(nextPropertyNameFrom(propertyName), clazz, propertyValues);72 }73 return simplePropertyValues(propertyName, clazz, target);74 }75 /**76 * Static variant of {@link #propertyValueOf(String, Class, Object)} for syntactic sugar.77 *78 * @param <T> the type of the extracted elements.79 * @param propertyName the name of the property. It may be a nested property. It is left to the clients to validate80 * for {@code null} or empty.81 * @param target the given object82 * @param clazz type of property83 * @return a the values of the given property name84 * @throws IntrospectionError if the given target does not have a property with a matching name.85 */86 public static <T> T propertyValueOf(String propertyName, Object target, Class<T> clazz) {87 return instance().propertyValueOf(propertyName, clazz, target);88 }89 private <T> List<T> simplePropertyValues(String propertyName, Class<T> clazz, Iterable<?> target) {90 return stream(target).map(e -> e == null ? null : propertyValue(propertyName, clazz, e))91 .collect(collectingAndThen(toList(), Collections::unmodifiableList));92 }93 private String popPropertyNameFrom(String propertyNameChain) {94 if (!isNestedProperty(propertyNameChain)) {95 return propertyNameChain;96 }97 return propertyNameChain.substring(0, propertyNameChain.indexOf(SEPARATOR));98 }99 private String nextPropertyNameFrom(String propertyNameChain) {100 if (!isNestedProperty(propertyNameChain)) {101 return "";102 }103 return propertyNameChain.substring(propertyNameChain.indexOf(SEPARATOR) + 1);104 }105 /*106 * <pre><code class='java'> isNestedProperty("address.street"); // true107 * isNestedProperty("address.street.name"); // true108 * isNestedProperty("person"); // false109 * isNestedProperty(".name"); // false110 * isNestedProperty("person."); // false111 * isNestedProperty("person.name."); // false112 * isNestedProperty(".person.name"); // false113 * isNestedProperty("."); // false114 * isNestedProperty(""); // false</code></pre>115 */116 private boolean isNestedProperty(String propertyName) {117 return propertyName.contains(SEPARATOR) && !propertyName.startsWith(SEPARATOR) && !propertyName.endsWith(SEPARATOR);118 }119 /**120 * Return the value of a simple property from a target object.121 * <p>122 * This only works for simple property, nested property are not supported ! use123 * {@link #propertyValueOf(String, Class, Object)}124 *125 * @param <T> the type of the extracted value.126 * @param propertyName the name of the property. It may be a nested property. It is left to the clients to validate127 * for {@code null} or empty.128 * @param target the given object129 * @param clazz type of property130 * @return a the values of the given property name131 * @throws IntrospectionError if the given target does not have a property with a matching name.132 */133 @SuppressWarnings("unchecked")134 public <T> T propertyValue(String propertyName, Class<T> clazz, Object target) {135 Method getter = getPropertyGetter(propertyName, target);136 try {137 return (T) getter.invoke(target);138 } catch (ClassCastException e) {139 String msg = format("Unable to obtain the value of the property <'%s'> from <%s> - wrong property type specified <%s>",140 propertyName, target, clazz);141 throw new IntrospectionError(msg, e);142 } catch (Exception unexpected) {143 String msg = format("Unable to obtain the value of the property <'%s'> from <%s>", propertyName, target);144 throw new IntrospectionError(msg, unexpected);145 }146 }147 /**148 * Returns the value of the given property name given target. If the given object is {@code null}, this method will149 * return null.<br>150 * This method supports nested properties (e.g. "address.street.number").151 *152 * @param <T> the type of the extracted value.153 * @param propertyName the name of the property. It may be a nested property. It is left to the clients to validate154 * for {@code null} or empty.155 * @param clazz the class of property.156 * @param target the given Object to extract property from.157 * @return the value of the given property name given target.158 * @throws IntrospectionError if target object does not have a property with a matching name.159 * @throws IllegalArgumentException if propertyName is null.160 */161 public <T> T propertyValueOf(String propertyName, Class<T> clazz, Object target) {162 checkArgument(propertyName != null, "the property name should not be null.");163 // returns null if target is null as we can't extract a property from a null object164 // but don't want to raise an exception if we were looking at a nested property165 if (target == null) return null;166 if (isNestedProperty(propertyName)) {167 String firstPropertyName = popPropertyNameFrom(propertyName);168 Object propertyValue = propertyValue(firstPropertyName, Object.class, target);169 // extract next sub-property values until reaching the last sub-property170 return propertyValueOf(nextPropertyNameFrom(propertyName), clazz, propertyValue);171 }172 return propertyValue(propertyName, clazz, target);173 }174 /**175 * Returns a <code>{@link List}</code> containing the values of the given property name, from the elements of the176 * given <code>{@link Iterable}</code>. If the given {@code Iterable} is empty or {@code null}, this method will177 * return an empty {@code List}. This method supports nested properties (e.g. "address.street.number").178 *179 * @param fieldOrPropertyName the name of the property. It may be a nested property. It is left to the clients to validate180 * for {@code null} or empty.181 * @param target the given {@code Iterable}.182 * @return an {@code Iterable} containing the values of the given property name, from the elements of the given183 * {@code Iterable}.184 * @throws IntrospectionError if an element in the given {@code Iterable} does not have a property with a matching...
nextPropertyNameFrom
Using AI Code Generation
1import org.assertj.core.util.introspection.PropertySupport;2public class PropertySupportTest {3 public static void main(String[] args) {4 PropertySupport propertySupport = new PropertySupport();5 String nextPropertyName = propertySupport.nextPropertyNameFrom("myProperty");6 System.out.println(nextPropertyName);7 }8}9org.assertj.core.util.introspection.PropertySupport.nextPropertyNameFrom(String) Method Source Code10import org.assertj.core.util.introspection.PropertySupport;11public class PropertySupportTest {12 public static void main(String[] args) {13 PropertySupport propertySupport = new PropertySupport();14 String nextPropertyName = propertySupport.nextPropertyNameFrom("myProperty");15 System.out.println(nextPropertyName);16 }17}
nextPropertyNameFrom
Using AI Code Generation
1@DisplayName("test nextPropertyNameFrom method of PropertySupport class")2public void testNextPropertyNameFrom() {3 assertThat(PropertySupport.nextPropertyNameFrom("getFirstName")).isEqualTo("firstName");4 assertThat(PropertySupport.nextPropertyNameFrom("getF")).isEqualTo("f");5 assertThat(PropertySupport.nextPropertyNameFrom("get")).isEqualTo("");6 assertThat(PropertySupport.nextPropertyNameFrom("get123")).isEqualTo("123");7 assertThat(PropertySupport.nextPropertyNameFrom("getFirst_Name")).isEqualTo("first_Name");8 assertThat(PropertySupport.nextPropertyNameFrom("getFirst-Name")).isEqualTo("first-Name");9 assertThat(PropertySupport.nextPropertyNameFrom("getFirst Name")).isEqualTo("first Name");10}
nextPropertyNameFrom
Using AI Code Generation
1import org.assertj.core.util.introspection.PropertySupport;2public class PropertySupportNextPropertyNameFromMethodExample {3 public static void main(String[] args) {4 String propertyName = "address.street";5 String nextPropertyName = PropertySupport.instance().nextPropertyNameFrom(propertyName);6 System.out.println("Next property name from " + propertyName + " is " + nextPropertyName);7 }8}
nextPropertyNameFrom
Using AI Code Generation
1public class PropertySupportTest {2 public void testNextPropertyNameFrom() {3 assertThat(PropertySupport.nextPropertyNameFrom("foo")).isEqualTo("foo");4 assertThat(PropertySupport.nextPropertyNameFrom("foo.")).isNull();5 assertThat(PropertySupport.nextPropertyNameFrom(".foo")).isNull();6 assertThat(PropertySupport.nextPropertyNameFrom("foo.bar")).isEqualTo("bar");7 assertThat(PropertySupport.nextPropertyNameFrom("foo.bar.baz")).isEqualTo("bar.baz");8 assertThat(PropertySupport.nextPropertyNameFrom("foo.bar.baz.")).isNull();9 assertThat(PropertySupport.nextPropertyNameFrom("foo.bar.baz..")).isNull();10 assertThat(PropertySupport.nextPropertyNameFrom("foo.bar.baz...")).isNull();11 assertThat(PropertySupport.nextPropertyNameFrom("foo.bar.baz....")).isNull();12 assertThat(PropertySupport.nextPropertyNameFrom("foo.bar.baz.....")).isNull();13 assertThat(PropertySupport.nextPropertyNameFrom("foo.bar.baz......")).isNull();14 assertThat(PropertySupport.nextPropertyNameFrom("foo.bar.baz.......")).isNull();15 assertThat(PropertySupport.nextPropertyNameFrom("foo.bar.baz........")).isNull();16 assertThat(PropertySupport.nextPropertyNameFrom("foo.bar.baz.........")).isNull();17 assertThat(PropertySupport.nextPropertyNameFrom("foo.bar.baz..........")).isNull();18 assertThat(PropertySupport.nextPropertyNameFrom("foo.bar.baz...........")).isNull();19 assertThat(PropertySupport.nextPropertyNameFrom("foo.bar.baz............")).isNull();20 assertThat(PropertySupport.nextPropertyNameFrom("foo.bar.baz.............")).isNull();21 assertThat(PropertySupport.nextPropertyNameFrom("foo.bar.baz..............")).isNull();22 assertThat(PropertySupport.nextPropertyNameFrom("foo.bar.baz...............")).isNull();23 assertThat(PropertySupport.nextPropertyNameFrom("foo.bar.baz................")).isNull();24 assertThat(PropertySupport.nextPropertyNameFrom("foo.bar.baz.................")).isNull();25 assertThat(PropertySupport.nextPropertyNameFrom("foo.bar.b
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