spring-boot-2-template

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package by.andd3dfx.templateapp.validators;
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import by.andd3dfx.templateapp.dto.ArticleUpdateDto;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.api.extension.ExtendWith;
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import org.mockito.InjectMocks;
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import org.mockito.Mock;
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import org.mockito.junit.jupiter.MockitoExtension;
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import javax.validation.ConstraintValidatorContext;
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import static org.hamcrest.CoreMatchers.is;
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import static org.hamcrest.MatcherAssert.assertThat;
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@ExtendWith(MockitoExtension.class)
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class OnlyOneFieldModifiedValidatorTest {
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    @Mock
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    private ConstraintValidatorContext contextMock;
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    @InjectMocks
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    private OnlyOneFieldModifiedValidator onlyOneFieldModifiedValidator;
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    @Test
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    void isValidWhenNoFieldsChanged() {
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        var articleUpdateDto = new ArticleUpdateDto();
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        assertThat(onlyOneFieldModifiedValidator.isValid(articleUpdateDto, contextMock), is(false));
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    }
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    @Test
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    void isValidWhenOneFieldChanged_ForTitle() {
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        var articleUpdateDto = ArticleUpdateDto.builder()
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                .title("Some Title")
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                .build();
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        assertThat(onlyOneFieldModifiedValidator.isValid(articleUpdateDto, contextMock), is(true));
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    }
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    @Test
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    void isValidWhenOneFieldChanged_ForSummary() {
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        var articleUpdateDto = ArticleUpdateDto.builder()
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                .summary("Some Summary")
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                .build();
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        assertThat(onlyOneFieldModifiedValidator.isValid(articleUpdateDto, contextMock), is(true));
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    }
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    @Test
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    void isValidWhenOneFieldChanged_ForText() {
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        var articleUpdateDto = ArticleUpdateDto.builder()
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                .text("Some Text")
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                .build();
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        assertThat(onlyOneFieldModifiedValidator.isValid(articleUpdateDto, contextMock), is(true));
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    }
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    @Test
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    void isValidWhenTwoFieldsChanged() {
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        var articleUpdateDto = ArticleUpdateDto.builder()
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                .title("Some Title")
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                .summary("Some Summary")
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                .build();
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        assertThat(onlyOneFieldModifiedValidator.isValid(articleUpdateDto, contextMock), is(false));
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    }
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    @Test
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    void isValidWhenThreeFieldsChanged() {
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        var articleUpdateDto = ArticleUpdateDto.builder()
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                .title("Some Title")
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                .summary("Some Summary")
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                .text("Some Text")
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                .build();
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        assertThat(onlyOneFieldModifiedValidator.isValid(articleUpdateDto, contextMock), is(false));
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    }
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}
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