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test(recipes): add JPEG input test for ImageCompressor

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Confirms the compressor accepts JPEG data URIs as input (not just PNG).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Marcel Raddatz
2026-04-10 09:38:01 +02:00
parent 9df6d6f0c6
commit 23c821937f
1 changed files with 22 additions and 0 deletions
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22
backend/src/test/java/com/recipeapp/recipe/ImageCompressorTest.java
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@@ -80,6 +80,17 @@ class ImageCompressorTest {
assertThat(compressor.compressToPreview("data:image/jpeg;base64,!!!not-valid!!!")).isNull(); assertThat(compressor.compressToPreview("data:image/jpeg;base64,!!!not-valid!!!")).isNull();
} }
@Test
void compressToPreview_acceptsJpegInput() throws Exception {
String dataUri = makeJpegDataUri(800, 600);
String result = compressor.compressToPreview(dataUri);
assertThat(result).startsWith("data:image/jpeg;base64,");
String base64 = result.substring("data:image/jpeg;base64,".length());
BufferedImage img = ImageIO.read(new ByteArrayInputStream(Base64.getDecoder().decode(base64)));
assertThat(img).isNotNull();
assertThat(img.getWidth()).isLessThanOrEqualTo(400);
}
// ── helpers ── // ── helpers ──
private String makePngDataUri(int width, int height) throws Exception { private String makePngDataUri(int width, int height) throws Exception {
@@ -95,4 +106,15 @@ class ImageCompressorTest {
ImageIO.write(img, "png", bos); ImageIO.write(img, "png", bos);
return "data:image/png;base64," + Base64.getEncoder().encodeToString(bos.toByteArray()); return "data:image/png;base64," + Base64.getEncoder().encodeToString(bos.toByteArray());
} }
private String makeJpegDataUri(int width, int height) throws Exception {
BufferedImage img = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
java.awt.Graphics2D g = img.createGraphics();
g.setColor(java.awt.Color.ORANGE);
g.fillRect(0, 0, width, height);
g.dispose();
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ImageIO.write(img, "jpeg", bos);
return "data:image/jpeg;base64," + Base64.getEncoder().encodeToString(bos.toByteArray());
}
} }