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How to use popFieldNameFrom method of org.assertj.core.util.introspection.FieldSupport class

Best Assertj code snippet using org.assertj.core.util.introspection.FieldSupport.popFieldNameFrom

Source:FieldSupport.java

...96   */97  public <T> List<T> fieldValues(String fieldName, Class<T> fieldClass, Iterable<?> target) {98    if (isNullOrEmpty(target)) return emptyList();99    if (isNestedField(fieldName)) {100      String firstFieldName = popFieldNameFrom(fieldName);101      Iterable<Object> fieldValues = fieldValues(firstFieldName, Object.class, target);102      // extract next sub-field values until reaching the last sub-field103      return fieldValues(nextFieldNameFrom(fieldName), fieldClass, fieldValues);104    }105    return simpleFieldValues(fieldName, fieldClass, target);106  }107  public List<Object> fieldValues(String fieldName, Iterable<?> target) {108    return fieldValues(fieldName, Object.class, target);109  }110  /**111   * Returns a <code>{@link List}</code> containing the values of the given field name, from the elements of the given112   * <code>{@link Iterable}</code>. If the given {@code Iterable} is empty or {@code null}, this method will return an113   * empty {@code List}. This method supports nested fields (e.g. "address.street.number").114   *115   * @param <T> the type of the extracted elements.116   * @param fieldName the name of the field. It may be a nested field. It is left to the clients to validate for117   *          {@code null} or empty.118   * @param fieldClass the expected type of the given field.119   * @param target the given {@code Iterable}.120   * @return an {@code Iterable} containing the values of the given field name, from the elements of the given121   *         {@code Iterable}.122   * @throws IntrospectionError if an element in the given {@code Iterable} does not have a field with a matching name.123   */124  public <T> List<T> fieldValues(String fieldName, Class<T> fieldClass, Object[] target) {125    return fieldValues(fieldName, fieldClass, wrap(target));126  }127  private <T> List<T> simpleFieldValues(String fieldName, Class<T> clazz, Iterable<?> target) {128    return stream(target).map(e -> e == null ? null : fieldValue(fieldName, clazz, e))129                         .collect(collectingAndThen(toList(), Collections::unmodifiableList));130  }131  private String popFieldNameFrom(String fieldNameChain) {132    if (!isNestedField(fieldNameChain)) {133      return fieldNameChain;134    }135    return fieldNameChain.substring(0, fieldNameChain.indexOf(SEPARATOR));136  }137  private String nextFieldNameFrom(String fieldNameChain) {138    if (!isNestedField(fieldNameChain)) {139      return "";140    }141    return fieldNameChain.substring(fieldNameChain.indexOf(SEPARATOR) + 1);142  }143  /*144   * <pre><code class='java'> isNestedField(&quot;address.street&quot;); // true145   * isNestedField(&quot;address.street.name&quot;); // true146   * isNestedField(&quot;person&quot;); // false147   * isNestedField(&quot;.name&quot;); // false148   * isNestedField(&quot;person.&quot;); // false149   * isNestedField(&quot;person.name.&quot;); // false150   * isNestedField(&quot;.person.name&quot;); // false151   * isNestedField(&quot;.&quot;); // false152   * isNestedField(&quot;&quot;); // false</code></pre>153   */154  private boolean isNestedField(String fieldName) {155    return fieldName.contains(SEPARATOR) && !fieldName.startsWith(SEPARATOR) && !fieldName.endsWith(SEPARATOR);156  }157  /**158   * Return the value of field from a target object. The field must not be static or synthetic (since 3.19.0).159   * <p>160   * Return null if field is nested and one of the nested value is null, ex :161   * <pre><code class='java'> fieldValue(race.name, String.class, frodo); // will return null if frodo.race is null</code></pre>162   *163   * @param <T> the type of the extracted value.164   * @param fieldName the name of the field. It may be a nested field. It is left to the clients to validate for165   *          {@code null} or empty.166   * @param target the given object167   * @param fieldClass type of field168   * @return the value of the given field name169   * @throws IntrospectionError if the given target does not have a field with a matching name.170   */171  public <T> T fieldValue(String fieldName, Class<T> fieldClass, Object target) {172    if (target == null) return null;173    if (isNestedField(fieldName)) {174      String outerFieldName = popFieldNameFrom(fieldName);175      Object outerFieldValue = readSimpleField(outerFieldName, Object.class, target);176      // extract next sub-field values until reaching the last sub-field177      return fieldValue(nextFieldNameFrom(fieldName), fieldClass, outerFieldValue);178    }179    return readSimpleField(fieldName, fieldClass, target);180  }181  @SuppressWarnings("unchecked")182  private <T> T readSimpleField(String fieldName, Class<T> clazz, Object target) {183    try {184      Object fieldValue = readField(target, fieldName, allowUsingPrivateFields);185      if (clazz.isPrimitive()) {186        switch (clazz.getSimpleName()) {187        case BYTE:188          Byte byteValue = (byte) fieldValue;...

popFieldNameFrom

Using AI Code Generation

1import org.assertj.core.util.introspection.FieldSupport;2public class FieldSupportTest {3    public static void main(String[] args) {4        FieldSupport fieldSupport = new FieldSupport();5        String fieldName = fieldSupport.popFieldNameFrom("field.name");6        System.out.println(fieldName);

popFieldNameFrom

Using AI Code Generation

1import static org.assertj.core.api.Assertions.assertThat;2import java.util.List;3import org.assertj.core.util.introspection.FieldSupport;4import org.junit.Test;5public class FieldSupportTest {6    public void popFieldNameFromTest() {7        List<String> names = FieldSupport.popFieldNameFrom("foo.bar.baz");8        assertThat(names).containsExactly("foo", "bar", "baz");9    }10}

popFieldNameFrom

Using AI Code Generation

1FieldSupport fieldSupport = new FieldSupport();2String fieldName = fieldSupport.popFieldNameFrom("person.name");3FieldSupport fieldSupport = new FieldSupport();4String fieldName = fieldSupport.popFieldNameFrom("person.name");5FieldSupport fieldSupport = new FieldSupport();6String fieldName = fieldSupport.popFieldNameFrom("person.name");7FieldSupport fieldSupport = new FieldSupport();8String fieldName = fieldSupport.popFieldNameFrom("person.name");9FieldSupport fieldSupport = new FieldSupport();10String fieldName = fieldSupport.popFieldNameFrom("person.name");11FieldSupport fieldSupport = new FieldSupport();12String fieldName = fieldSupport.popFieldNameFrom("person.name");13FieldSupport fieldSupport = new FieldSupport();14String fieldName = fieldSupport.popFieldNameFrom("person.name");15FieldSupport fieldSupport = new FieldSupport();16String fieldName = fieldSupport.popFieldNameFrom("person.name");17FieldSupport fieldSupport = new FieldSupport();18String fieldName = fieldSupport.popFieldNameFrom("person.name");19FieldSupport fieldSupport = new FieldSupport();20String fieldName = fieldSupport.popFieldNameFrom("person.name");21FieldSupport fieldSupport = new FieldSupport();22String fieldName = fieldSupport.popFieldNameFrom("

popFieldNameFrom

Using AI Code Generation

1public class FieldSupportTest {2    public void testPopFieldNameFrom() {3        String fieldName = FieldSupport.popFieldNameFrom("field");4        assertThat(fieldName).isEqualTo("field");5    }6}

popFieldNameFrom

Using AI Code Generation

1import static org.assertj.core.util.introspection.FieldSupport.popFieldNameFrom;2import static org.assertj.core.api.Assertions.assertThat;3import org.junit.Test;4public class FieldSupportTest {5    public void testPopFieldNameFrom() {6        String field = "field";7        assertThat(popFieldNameFrom(field)).isEqualTo(field);8        assertThat(popFieldNameFrom(field + ".")).isEqualTo(field);9        assertThat(popFieldNameFrom(field + ".[]")).isEqualTo(field);10        assertThat(popFieldNameFrom(field + "[].")).isEqualTo(fiel

popFieldNameFrom

Using AI Code Generation

1import org.assertj.core.util.introspection.FieldSupport;2import org.assertj.core.util.introspection.IntrospectionError;3import org.assertj.core.util.introspection.IntrospectionError.IntrospectionErrorType;4String fieldPath = "field1.field2.field3";5String fieldName = FieldSupport.popFieldNameFrom(fieldPath);6System.out.println("fieldPath: " + fieldPath);7System.out.println("fieldName: " + fieldName);8import org.assertj.core.util.introspection.FieldSupport;9import org.assertj.core.util.introspection.IntrospectionError;10import org.assertj.core.util.introspection.IntrospectionError.IntrospectionErrorType;11String fieldPath = "field1.field2.field3";12String fieldName = FieldSupport.popFieldNameFrom(fieldPath);13System.out.println("fieldPath: " + fieldPath);14System.out.println("fieldName: " + fieldName);15import org.assertj.core.util.introspection.FieldSupport;16import org.assertj.core.util.introspection.IntrospectionError;17import org.assertj.core.util.introspection.IntrospectionError.IntrospectionErrorType;18String fieldPath = "field1.field2.field3";19String fieldName = FieldSupport.popFieldNameFrom(fieldPath);20System.out.println("fieldPath: " + fieldPath);21System.out.println("fieldName: " + fieldName);22import org.assertj.core.util.introspection.FieldSupport;23import org.assertj.core.util.introspection.IntrospectionError;24import org.assertj.core.util.introspection.IntrospectionError.IntrospectionErrorType;

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