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   *  regarding copyright ownership.  The ASF licenses this file
   *  to you under the Apache License, Version 2.0 (the
   *  "License"); you may not use this file except in compliance
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   *
   *        http://www.apache.org/licenses/LICENSE-2.0
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   *  Unless required by applicable law or agreed to in writing,
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   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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   *  specific language governing permissions and limitations
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   */
  package org.apache.causeway.core.metamodel.facets.properties.propertylayout;
  
  import java.util.Optional;
  
  import org.hamcrest.Description;
  import org.hamcrest.Matcher;
  import org.hamcrest.TypeSafeMatcher;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.mockito.Mockito;
  
  import static org.hamcrest.CoreMatchers.is;
  import static org.hamcrest.CoreMatchers.nullValue;
  import static org.hamcrest.MatcherAssert.assertThat;
  
  import org.apache.causeway.applib.annotation.PromptStyle;
  import org.apache.causeway.applib.annotation.PropertyLayout;
  import org.apache.causeway.core.config.CausewayConfiguration;
  import org.apache.causeway.core.metamodel.facetapi.FacetHolder;
  import org.apache.causeway.core.metamodel.facets.object.promptStyle.PromptStyleFacet;
  
  class PromptStyleFacetFromPropertyAnnotationTest {
  
      CausewayConfiguration stubConfiguration = CausewayConfiguration.builder().build();
  
      FacetHolder mockFacetHolder;
      PropertyLayout mockPropertyLayout;
  
      @BeforeEach
      void setUp() throws Exception {
          mockFacetHolder = Mockito.mock(FacetHolder.class);
          mockPropertyLayout = Mockito.mock(PropertyLayout.class);
      }
  
      @Test
      void when_annotated_with_dialog() throws Exception {
  
          Mockito.when(mockPropertyLayout.promptStyle()).thenReturn(PromptStyle.DIALOG);
  
          PromptStyleFacet facet = createPromptStyleFacetForPropertyLayoutAnnotation(
                      Optional.of(mockPropertyLayout), stubConfiguration, mockFacetHolder)
                  .orElse(null);
  
          assertThat(facet.origin(), is("PropertyLayoutAnnotation"));
          assertThat(facet.value(), is(PromptStyle.DIALOG));
      }
  
      @Test
      void when_annotated_with_inline() throws Exception {
  
          Mockito.when(mockPropertyLayout.promptStyle()).thenReturn(PromptStyle.INLINE);
  
          PromptStyleFacet facet = createPromptStyleFacetForPropertyLayoutAnnotation(
                      Optional.of(mockPropertyLayout), stubConfiguration, mockFacetHolder)
                  .orElse(null);
  
          assertThat(facet.origin(), is("PropertyLayoutAnnotation"));
          assertThat(facet.value(), is(PromptStyle.INLINE));
      }
  
      @Test
      void when_annotated_with_as_configured() throws Exception {
  
          stubConfiguration.getViewer().getWicket().setPromptStyle(PromptStyle.INLINE);
  
          Mockito.when(mockPropertyLayout.promptStyle()).thenReturn(PromptStyle.AS_CONFIGURED);
          Mockito.when(mockFacetHolder.containsNonFallbackFacet(PromptStyleFacet.class))
          .thenReturn(false);
  
          PromptStyleFacet facet = createPromptStyleFacetForPropertyLayoutAnnotation(
                      Optional.of(mockPropertyLayout), stubConfiguration, mockFacetHolder)
                  .orElse(null);
  
          assertThat(facet, is(anInstanceOf(PromptStyleFacet.class)));
          assertThat(facet.origin(), is("Configuration"));
          assertThat(facet.value(), is(PromptStyle.INLINE));
      }
  
      @Test
      void when_annotated_with_as_configured_but_already_has_doop_facet() throws Exception {
  
          Mockito.when(mockPropertyLayout.promptStyle()).thenReturn(PromptStyle.AS_CONFIGURED);
          Mockito.when(mockFacetHolder.containsNonFallbackFacet(PromptStyleFacet.class))
          .thenReturn(true);
  
          PromptStyleFacet facet = createPromptStyleFacetForPropertyLayoutAnnotation(
                      Optional.of(mockPropertyLayout), stubConfiguration, mockFacetHolder)
                  .orElse(null);
  
          assertThat(facet, is(nullValue()));
      }
  
      @Test
      void when_not_annotated() throws Exception {
  
          Mockito.when(mockPropertyLayout.promptStyle()).thenReturn(PromptStyle.NOT_SPECIFIED);
          Mockito.when(mockFacetHolder.containsNonFallbackFacet(PromptStyleFacet.class))
          .thenReturn(false);
  
          PromptStyleFacet facet = createPromptStyleFacetForPropertyLayoutAnnotation(
                      Optional.of(mockPropertyLayout), stubConfiguration, mockFacetHolder)
                  .orElse(null);
  
  
          assertThat(facet, is(anInstanceOf(PromptStyleFacet.class)));
          assertThat(facet.origin(), is("Configuration"));
          assertThat(facet.value(), is(PromptStyle.INLINE));
      }
  
      @Test
      void when_not_annotated_but_already_has_doop_facet() throws Exception {
  
          Mockito.when(mockPropertyLayout.promptStyle()).thenReturn(PromptStyle.NOT_SPECIFIED);
          Mockito.when(mockFacetHolder.containsNonFallbackFacet(PromptStyleFacet.class))
          .thenReturn(true);
  
          PromptStyleFacet facet = createPromptStyleFacetForPropertyLayoutAnnotation(
                      Optional.of(mockPropertyLayout), stubConfiguration, mockFacetHolder)
                  .orElse(null);
  
          assertThat(facet, is(nullValue()));
      }
  
      static <T> Matcher<? super T> anInstanceOf(final Class<T> expected) {
          return new TypeSafeMatcher<T>() {
              @Override
              public boolean matchesSafely(final T actual) {
                  return expected.isAssignableFrom(actual.getClass());
              }
  
              @Override
              public void describeTo(final Description description) {
                  description.appendText("an instance of ").appendValue(expected);
              }
          };
      }
  
      static Optional<PromptStyleFacet> createPromptStyleFacetForPropertyLayoutAnnotation(
          final Optional<PropertyLayout> p, final CausewayConfiguration c, final FacetHolder f) {
          return PropertyLayoutFacetFactory.createPromptStyleFacetForPropertyLayoutAnnotation(p, c, f);
      }
  
  }
  