### Question:
FluentListAssert extends AbstractFluentAssert<FluentListAssert, FluentList> implements ListStateAssert, ListAttributeAssert { @Override public FluentListAssert hasNotTextContaining(String textToFind) { List<String> actualTexts = requiresNonEmpty(actual.texts()); for (String text : actualTexts) { if (text.contains(textToFind)) { failWithMessage( "At least one selected elements contains text: " + textToFind + ". Actual texts found: " + actualTexts); } } return this; } FluentListAssert(FluentList<? extends FluentWebElement> actual); @Override FluentListAssert isEmpty(); @Override FluentListAssert isNotEmpty(); @Override FluentListAssert hasSize(int expectedSize); @Override FluentListSizeBuilder hasSize(); @Override FluentListAssert hasText(String textToFind); @Override FluentListAssert hasTextContaining(String textToFind); @Override FluentListAssert hasTextMatching(String regexToBeMatched); @Override FluentListAssert hasNotText(String textToFind); @Override FluentListAssert hasNotTextContaining(String textToFind); @Override FluentListAssert hasId(String idToFind); @Override FluentListAssert hasClass(String classToFind); @Override FluentListAssert hasClasses(String... classesToFind); @Override FluentListAssert hasNotClass(String htmlClass); @Override FluentListAssert hasNotClasses(String... htmlClasses); @Override FluentListAssert hasValue(String value); @Override FluentListAssert hasName(String name); @Override FluentListAssert hasTagName(String tagName); @Override FluentListAssert hasDimension(Dimension dimension); @Override FluentListAssert hasAttributeValue(String attribute, String value); @Override ListAssert<String> hasAttribute(String attribute); @Override FluentListAssert hasNotAttribute(String attribute);  }### Answer:
@Test public void testHasNotTextContainingOk() { when(fluentList.texts()).thenReturn(singletonList("other text")); listAssert.hasNotTextContaining("some text"); }
@Test public void testHasNotTextContainingKo() { when(fluentList.texts()).thenReturn(Lists.newArrayList("some text", "other text to contain")); assertThatAssertionErrorIsThrownBy(() -> listAssert.hasNotTextContaining("other text")) .hasMessage("At least one selected elements contains text: other text. " + "Actual texts found: [some text, other text to contain]"); }