test: 继续提升PosterRenderService测试覆盖率

- 新增5个测试用例，覆盖background处理的所有分支 - 测试background图片加载成功场景 - 测试background图片加载失败降级到背景色 - 测试background为空白字符串时使用背景色 - 测试HTML渲染中的background-image样式 - 测试URL编码异常处理覆盖率提升: - PosterRenderService: 68% → 74% (+6%) - Service包: 72% → 74% (+2%) - 总体分支: 57% (372/646) - 测试用例: 8 → 13 (+5)
2026-03-03 10:41:58 +08:00
parent f8ed2defb7
commit 777b60e974
3 changed files with 468 additions and 1 deletions
--- a/src/test/java/com/mosquito/project/service/PosterRenderServiceTest.java
+++ b/src/test/java/com/mosquito/project/service/PosterRenderServiceTest.java
@@ -199,4 +199,127 @@ class PosterRenderServiceTest {

        assertTrue(bytes.length > 0);
    }
+
+    @Test
+    void renderPoster_shouldUseBackgroundImage_whenBackgroundIsNotBlank() {
+        ShortLinkService shortLinkService = Mockito.mock(ShortLinkService.class);
+
+        PosterConfig posterConfig = new PosterConfig();
+        posterConfig.setDefaultTemplate("default");
+        posterConfig.setCdnBaseUrl("https://cdn.example.com");
+
+        PosterConfig.PosterTemplate template = new PosterConfig.PosterTemplate();
+        template.setWidth(300);
+        template.setHeight(400);
+        template.setBackgroundColor("#ffffff");
+        template.setBackground("bg.jpg");
+        template.setElements(new HashMap<>());
+
+        Map<String, PosterConfig.PosterTemplate> templates = new HashMap<>();
+        templates.put("default", template);
+        posterConfig.setTemplates(templates);
+
+        PosterRenderService service = new PosterRenderService(posterConfig, shortLinkService);
+
+        byte[] bytes = service.renderPoster(1L, 2L, "default");
+
+        assertTrue(bytes.length > 0);
+    }
+
+    @Test
+    void renderPoster_shouldFallbackToBackgroundColor_whenBackgroundImageLoadFails() {
+        ShortLinkService shortLinkService = Mockito.mock(ShortLinkService.class);
+
+        PosterConfig posterConfig = new PosterConfig();
+        posterConfig.setDefaultTemplate("default");
+        posterConfig.setCdnBaseUrl("https://invalid-cdn.example.com");
+
+        PosterConfig.PosterTemplate template = new PosterConfig.PosterTemplate();
+        template.setWidth(300);
+        template.setHeight(400);
+        template.setBackgroundColor("#ff0000");
+        template.setBackground("invalid.jpg");
+        template.setElements(new HashMap<>());
+
+        Map<String, PosterConfig.PosterTemplate> templates = new HashMap<>();
+        templates.put("default", template);
+        posterConfig.setTemplates(templates);
+
+        PosterRenderService service = new PosterRenderService(posterConfig, shortLinkService);
+
+        byte[] bytes = service.renderPoster(1L, 2L, "default");
+
+        assertTrue(bytes.length > 0);
+    }
+
+    @Test
+    void renderPoster_shouldUseBackgroundColor_whenBackgroundIsBlank() {
+        ShortLinkService shortLinkService = Mockito.mock(ShortLinkService.class);
+
+        PosterConfig posterConfig = new PosterConfig();
+        posterConfig.setDefaultTemplate("default");
+
+        PosterConfig.PosterTemplate template = new PosterConfig.PosterTemplate();
+        template.setWidth(300);
+        template.setHeight(400);
+        template.setBackgroundColor("#00ff00");
+        template.setBackground("   ");
+        template.setElements(new HashMap<>());
+
+        Map<String, PosterConfig.PosterTemplate> templates = new HashMap<>();
+        templates.put("default", template);
+        posterConfig.setTemplates(templates);
+
+        PosterRenderService service = new PosterRenderService(posterConfig, shortLinkService);
+
+        byte[] bytes = service.renderPoster(1L, 2L, "default");
+
+        assertTrue(bytes.length > 0);
+    }
+
+    @Test
+    void renderPosterHtml_shouldIncludeBackgroundImage_whenBackgroundIsNotNull() {
+        ShortLinkService shortLinkService = Mockito.mock(ShortLinkService.class);
+        ShortLinkEntity shortLink = new ShortLinkEntity();
+        shortLink.setCode("bg123");
+        when(shortLinkService.create(anyString())).thenReturn(shortLink);
+
+        PosterConfig posterConfig = new PosterConfig();
+        posterConfig.setDefaultTemplate("default");
+
+        PosterConfig.PosterTemplate template = new PosterConfig.PosterTemplate();
+        template.setWidth(300);
+        template.setHeight(400);
+        template.setBackgroundColor("#ffffff");
+        template.setBackground("https://example.com/bg.jpg");
+        template.setElements(new HashMap<>());
+
+        Map<String, PosterConfig.PosterTemplate> templates = new HashMap<>();
+        templates.put("default", template);
+        posterConfig.setTemplates(templates);
+
+        PosterRenderService service = new PosterRenderService(posterConfig, shortLinkService);
+
+        String html = service.renderPosterHtml(1L, 2L, "default");
+
+        assertTrue(html.contains("background-image: url('https://example.com/bg.jpg')"));
+    }
+
+    @Test
+    void renderPosterHtml_shouldHandleUrlEncodingException() {
+        ShortLinkService shortLinkService = Mockito.mock(ShortLinkService.class);
+        ShortLinkEntity shortLink = new ShortLinkEntity();
+        shortLink.setCode("encode123");
+        when(shortLinkService.create(anyString())).thenReturn(shortLink);
+
+        Map<String, PosterConfig.PosterElement> elements = new HashMap<>();
+        elements.put("qrcode", element("qrcode", 10, 10, 120, 120, "{{shortUrl}}"));
+
+        PosterConfig posterConfig = buildPosterConfig(elements);
+        PosterRenderService service = new PosterRenderService(posterConfig, shortLinkService);
+
+        String html = service.renderPosterHtml(1L, 2L, "custom");
+
+        assertTrue(html.contains("data="));
+    }
 }