How to use isNullOrEmpty method of org.assertj.core.util.Strings class

Best Assertj code snippet using org.assertj.core.util.Strings.isNullOrEmpty

Source:OnFieldsComparator.java Github

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...12 */​13package org.assertj.core.internal;14import static org.assertj.core.configuration.ConfigurationProvider.CONFIGURATION_PROVIDER;15import static org.assertj.core.internal.TypeComparators.defaultTypeComparators;16import static org.assertj.core.util.Arrays.isNullOrEmpty;17import static org.assertj.core.util.Preconditions.checkArgument;18import static org.assertj.core.util.Strings.isNullOrEmpty;19import java.util.Comparator;20import java.util.HashMap;21import java.util.Map;22import org.assertj.core.api.AbstractIterableAssert;23import org.assertj.core.api.AbstractObjectAssert;24import org.assertj.core.api.recursive.comparison.RecursiveComparisonConfiguration;25import org.assertj.core.util.VisibleForTesting;26import org.assertj.core.util.introspection.IntrospectionError;27/​**28 * @deprecated29 * This comparator is deprecated because it performs a <b>shallow</​b> field by field comparison, i.e. elements are compared30 * field by field but the fields are compared with equals, use {@link AbstractIterableAssert#usingRecursiveFieldByFieldElementComparator(RecursiveComparisonConfiguration)}31 * or {@link AbstractObjectAssert#usingRecursiveComparison()} instead to perform a true recursive comparison.32 */​33@Deprecated34public class OnFieldsComparator extends FieldByFieldComparator {35 private final String[] fields;36 public OnFieldsComparator(Map<String, Comparator<?>> comparatorByPropertyOrField,37 TypeComparators comparatorByType, String... fields) {38 super(comparatorByPropertyOrField, comparatorByType);39 checkArgument(!isNullOrEmpty(fields), "No fields/​properties specified");40 for (String field : fields) {41 checkArgument(!isNullOrEmpty(field) && !isNullOrEmpty(field.trim()),42 "Null/​blank fields/​properties are invalid, fields/​properties were %s",43 CONFIGURATION_PROVIDER.representation().toStringOf(fields));44 }45 this.fields = fields;46 }47 public OnFieldsComparator(String... fields) {48 this(new HashMap<>(), defaultTypeComparators(), fields);49 }50 @VisibleForTesting51 public String[] getFields() {52 return fields;53 }54 @Override55 protected boolean areEqual(Object actualElement, Object otherElement) {...

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isNullOrEmpty

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1assertThat(Strings.isNullOrEmpty(null)).isTrue();2assertThat(Strings.isNullOrEmpty("")).isTrue();3assertThat(Strings.isNullOrEmpty(" ")).isFalse();4assertThat(Strings.isNullOrEmpty("bob")).isFalse();5assertThat(Strings.isNullOrEmpty(null)).isTrue();6assertThat(Strings.isNullOrEmpty("")).isTrue();7assertThat(Strings.isNullOrEmpty(" ")).isFalse();8assertThat(Strings.isNullOrEmpty("bob")).isFalse();9assertThat(Strings.isNullOrEmpty(null)).isTrue();10assertThat(Strings.isNullOrEmpty("")).isTrue();11assertThat(Strings.isNullOrEmpty(" ")).isFalse();12assertThat(Strings.isNullOrEmpty("bob")).isFalse();13assertThat(Strings.isNullOrEmpty(null)).isTrue();14assertThat(Strings.isNullOrEmpty("")).isTrue();15assertThat(Strings.isNullOrEmpty(" ")).isFalse();16assertThat(Strings.isNullOrEmpty("bob")).isFalse();17assertThat(Strings.isNullOrEmpty(null)).isTrue();18assertThat(Strings.isNullOrEmpty("")).isTrue();19assertThat(Strings.isNullOrEmpty(" ")).isFalse();20assertThat(Strings.isNullOrEmpty("bob")).isFalse();21assertThat(Strings.isNullOrEmpty(null)).isTrue();22assertThat(Strings.isNullOrEmpty("")).isTrue();23assertThat(Strings.isNullOrEmpty(" ")).isFalse();24assertThat(Strings.isNullOrEmpty("bob")).isFalse();25assertThat(Strings.isNullOrEmpty(null)).isTrue();26assertThat(Strings.isNullOrEmpty("")).isTrue();27assertThat(Strings.isNullOrEmpty(" ")).isFalse();28assertThat(Strings.isNullOrEmpty("bob")).isFalse();29assertThat(Strings.isNullOrEmpty(null)).isTrue();30assertThat(Strings.isNullOrEmpty("")).isTrue();31assertThat(Strings.isNullOrEmpty(" ")).isFalse();32assertThat(Strings.isNullOrEmpty("bob")).isFalse();33assertThat(Strings.isNullOrEmpty(null)).isTrue();34assertThat(Strings.isNullOrEmpty("")).isTrue();35assertThat(Strings.isNullOrEmpty(" ")).isFalse();36assertThat(Strings.isNullOrEmpty("bob")).isFalse();37assertThat(Strings.isNullOrEmpty(null)).isTrue();38assertThat(Strings.isNullOrEmpty("")).isTrue();39assertThat(Strings.isNullOrEmpty(" ")).isFalse();40assertThat(Strings.isNullOrEmpty("bob")).isFalse();41assertThat(Strings.isNullOrEmpty(null)).isTrue();42assertThat(Strings.isNullOrEmpty("")).isTrue();43assertThat(Strings.isNullOrEmpty(" ")).isFalse();44assertThat(Strings.isNullOrEmpty("bob")).isFalse();45assertThat(Strings.isNullOrEmpty(null)).isTrue();46assertThat(Strings.isNullOrEmpty("")).isTrue();47assertThat(Strings.isNullOrEmpty(" ")).isFalse();48assertThat(Strings.isNullOrEmpty

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isNullOrEmpty

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1assertThat(Strings.isNullOrEmpty("")).isTrue();2assertThat(Strings.isNullOrEmpty(" ")).isFalse();3assertThat(Strings.isNullOrEmpty("abc")).isFalse();4assertThat(Strings.isBlank("")).isTrue();5assertThat(Strings.isBlank(" ")).isTrue();6assertThat(Strings.isBlank("abc")).isFalse();7assertThat(Strings.isNotBlank("")).isFalse();8assertThat(Strings.isNotBlank(" ")).isFalse();9assertThat(Strings.isNotBlank("abc")).isTrue();10assertThat(Strings.isEmpty("")).isTrue();11assertThat(Strings.isEmpty(" ")).isFalse();12assertThat(Strings.isEmpty("abc")).isFalse();13assertThat(Strings.isNotEmpty("")).isFalse();14assertThat(Strings.isNotEmpty(" ")).isTrue();15assertThat(Strings.isNotEmpty("abc")).isTrue();16assertThat(Strings.nullOrEmpty(null)).isTrue();17assertThat(Strings.nullOrEmpty("")).isTrue();18assertThat(Strings.nullOrEmpty(" ")).isFalse();19assertThat(Strings.nullOrEmpty("abc")).isFalse();20assertThat(Strings.nullOrEmpty(null)).isTrue();21assertThat(Strings.nullOrEmpty("")).isTrue();22assertThat(Strings.nullOrEmpty(" ")).isFalse();23assertThat(Strings.nullOrEmpty("abc")).isFalse();24assertThat(Strings.nullOrBlank(null)).isTrue();25assertThat(Strings.nullOrBlank("")).isTrue();26assertThat(Strings.nullOrBlank(" ")).isTrue();27assertThat(Strings.nullOrBlank("abc")).isFalse();28assertThat(Strings.nullOrEmptyOrBlank(null)).isTrue();29assertThat(Strings.nullOrEmptyOrBlank("")).isTrue();30assertThat(Strings.nullOrEmptyOrBlank(" ")).isTrue();31assertThat(Strings.nullOrEmptyOrBlank("abc")).isFalse();

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isNullOrEmpty

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1assertThat(Strings.isNullOrEmpty(null)).isTrue();2assertThat(Strings.isNullOrEmpty("")).isTrue();3assertThat(Strings.isNullOrEmpty(" ")).isFalse();4assertThat(Strings.isNullOrEmpty("bob")).isFalse();5Assertions.assertEquals(2, 1 + 1);6Assertions.assertEquals("Hello World!", "Hello " + "World!");7public void testAssertJFluentAssertionStyleInJUnit5() {8 assertThat(Strings.isNullOrEmpty(null)).isTrue();9 assertThat(Strings.isNullOrEmpty("")).isTrue();10 assertThat(Strings.isNullOrEmpty(" ")).isFalse();11 assertThat(Strings.isNullOrEmpty("bob")).isFalse();12}13public void testHamcrestMatcherStyleInJUnit5() {14 assertThat(Strings.isNullOrEmpty(null), is(true));15 assertThat(Strings.isNullOrEmpty(""), is

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isNullOrEmpty

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1assertThat(Strings.isNullOrEmpty("")).isTrue();2assertThat(Strings.isNullOrEmpty(" ")).isFalse();3assertThat(Strings.isNullOrEmpty("foo")).isFalse();4assertThat(StringUtils.isNullOrEmpty("")).isTrue();5assertThat(StringUtils.isNullOrEmpty(" ")).isFalse();6assertThat(StringUtils.isNullOrEmpty("foo")).isFalse();7assertThat(org.springframework.util.StringUtils.isEmpty("")).isTrue();8assertThat(org.springframework.util.StringUtils.isEmpty(" ")).isFalse();9assertThat(org.springframework.util.StringUtils.isEmpty("foo")).isFalse();10assertThat(org.apache.commons.lang.StringUtils.isEmpty("")).isTrue();11assertThat(org.apache.commons.lang.StringUtils.isEmpty(" ")).isFalse();12assertThat(org.apache.commons.lang.StringUtils.isEmpty("foo")).isFalse();13assertThat(org.apache.commons.lang3.StringUtils.isEmpty("")).isTrue();14assertThat(org.apache.commons.lang3.StringUtils.isEmpty(" ")).isFalse();15assertThat(org.apache.commons.lang3.StringUtils.isEmpty("foo")).isFalse();16assertThat(org.apache.commons.lang3.StringUtils.isEmpty("")).isTrue();17assertThat(org.apache.commons.lang3.StringUtils.isEmpty(" ")).isFalse();18assertThat(org.apache.commons.lang3.StringUtils.isEmpty("foo")).isFalse();19assertThat(org.apache.commons.lang3.StringUtils.isEmpty("")).isTrue();20assertThat(org.apache.commons.lang3.StringUtils.isEmpty(" ")).isFalse();21assertThat(org.apache.commons.lang3.StringUtils.isEmpty("foo")).isFalse();22assertThat(org.apache.commons.lang3.StringUtils.isEmpty("")).isTrue();23assertThat(org.apache.commons.lang3.StringUtils.isEmpty(" ")).isFalse();24assertThat(org.apache.commons.lang3.StringUtils.isEmpty("foo")).isFalse();25assertThat(org.apache.commons.lang3.StringUtils.isEmpty("")).isTrue();26assertThat(org.apache.commons.lang3.StringUtils.isEmpty(" ")).isFalse();27assertThat(org.apache.commons.lang3.StringUtils.isEmpty("foo")).isFalse();

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isNullOrEmpty

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1assertThat(Strings.isNullOrEmpty("")).isTrue();2assertThat(Strings.isNullOrEmpty(" ")).isFalse();3assertThat(Strings.isNullOrEmpty("Hello")).isFalse();4assertThat(Strings.isNullOrEmpty(null)).isTrue();5assertThat(StringUtils.isEmpty("")).isTrue();6assertThat(StringUtils.isEmpty(" ")).isFalse();7assertThat(StringUtils.isEmpty("Hello")).isFalse();8assertThat(StringUtils.isEmpty(null)).isTrue();9assertThat(CollectionUtils.isEmpty(Collections.emptyList())).isTrue();10assertThat(CollectionUtils.isEmpty(Arrays.asList(1, 2, 3))).isFalse();11assertThat(CollectionUtils.isEmpty(null)).isTrue();12assertThat(MapUtils.isEmpty(Collections.emptyMap())).isTrue();13assertThat(MapUtils.isEmpty(Collections.singletonMap("key", "value"))).isFalse();14assertThat(MapUtils.isEmpty(null)).isTrue();15assertThat(ArrayUtils.isEmpty(new int[]{})).isTrue();16assertThat(ArrayUtils.isEmpty(new int[]{1, 2, 3})).isFalse();17assertThat(ArrayUtils.isEmpty(null)).isTrue();18assertThat(org.apache.commons.lang3.ArrayUtils.isEmpty(new int[]{})).isTrue();19assertThat(org.apache.commons.lang3.ArrayUtils.isEmpty(new int[]{1, 2, 3})).isFalse();20assertThat(org.apache

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isNullOrEmpty

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1import static org.assertj.core.util.Strings.isNullOrEmpty;2public class IsNullOrEmptyExample {3 public static void main(String[] args) {4 String str = null;5 System.out.println(isNullOrEmpty(str));6 str = "";7 System.out.println(isNullOrEmpty(str));8 str = " ";9 System.out.println(isNullOrEmpty(str));10 str = "Java";11 System.out.println(isNullOrEmpty(str));12 }13}

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