#543, #550 - added unit tests for CategoryService

src/test/java/de/deadlocker8/budgetmaster/unit/CategoryServiceTest.java

+package de.deadlocker8.budgetmaster.unit;
+
+import de.deadlocker8.budgetmaster.categories.Category;
+import de.deadlocker8.budgetmaster.categories.CategoryRepository;
+import de.deadlocker8.budgetmaster.categories.CategoryService;
+import de.deadlocker8.budgetmaster.categories.CategoryType;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Mockito;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.BDDMockito.given;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class CategoryServiceTest
+{
+	private static final Category CATEGORY_NONE = new Category("No Category", "#FFFFFF", CategoryType.NONE);
+	private static final Category CATEGORY_REST = new Category("Rest", "#FFFF00", CategoryType.REST);
+
+	@MockBean(CategoryRepository.class)
+	private CategoryRepository categoryRepository;
+
+	@Autowired
+	private CategoryService categoryService;
+
+	@Test
+	public void test_getAllCategories()
+	{
+		List<Category> categories = new ArrayList<>();
+		categories.add(CATEGORY_NONE);
+		categories.add(CATEGORY_REST);
+
+		Category category_BB = new Category("BB", "#ff0000", CategoryType.CUSTOM);
+		categories.add(category_BB);
+
+		Category category_AA = new Category("AA", "#ff0000", CategoryType.CUSTOM);
+		categories.add(category_AA);
+
+		Category category_0 = new Category("0", "#ff0000", CategoryType.CUSTOM);
+		categories.add(category_0);
+
+		Category category_aa = new Category("aa", "#ff0000", CategoryType.CUSTOM);
+		categories.add(category_aa);
+
+		Mockito.when(categoryRepository.findByType(CategoryType.NONE)).thenReturn(CATEGORY_NONE);
+		Mockito.when(categoryRepository.findByType(CategoryType.REST)).thenReturn(CATEGORY_REST);
+		Mockito.when(categoryRepository.findAllByOrderByNameAsc()).thenReturn(categories);
+
+		assertThat(categoryService.getAllCategories()).hasSize(6)
+				.containsExactly(category_0, category_AA, category_aa, category_BB, CATEGORY_NONE, CATEGORY_REST);
+	}
+
+	@Test
+	public void test_createDefaults()
+	{
+		categoryService.createDefaults();
+
+		// createDefaults() may also be called in constructor so 2 calls are possible
+		Mockito.verify(categoryRepository, Mockito.atLeast(1)).save(CATEGORY_NONE);
+		Mockito.verify(categoryRepository, Mockito.atLeast(1)).save(CATEGORY_REST);
+	}
+
+	@Test
+	public void test_isDeletable_default()
+	{
+		Mockito.when(categoryRepository.findById(1)).thenReturn(Optional.of(CATEGORY_NONE));
+
+		assertThat(categoryService.isDeletable(1)).isFalse();
+	}
+
+	@Test
+	public void test_isDeletable_custom()
+	{
+		Category customCategory = new Category("aa", "#ff0000", CategoryType.CUSTOM);
+
+		Mockito.when(categoryRepository.findById(1)).thenReturn(Optional.of(customCategory));
+
+		assertThat(categoryService.isDeletable(1)).isTrue();
+	}
+}