Add tests to prevent regression in OCR for gif, jpg, jp2, tiff, webp

Author: catileptic

tests/fixtures/regression_gif.gif

@@ -14,10 +14,53 @@ def test_ingest_on_svg(self):
         self.assertIn("TEST", entity.first("bodyText"))
         self.assertEqual(entity.first("processingStatus"), self.manager.STATUS_SUCCESS)
 
-    def test_ingest_on_jpeg(self):
-        fixture_path, entity = self.fixture("jpegtest.jpg")
-        self.manager.ingest(fixture_path, entity)
-        self.assertIn("Debian", entity.first("bodyText"))
-        self.assertEqual(entity.first("mimeType"), "image/jpeg")
+    def test_tesseract_ocr_regression(self):
+        """This test is meant to catch a regresion in the OCR behaviour
+        descrbed in this PR: https://github.com/alephdata/ingest-file/pull/585"""
 
-        self.assertEqual(entity.first("processingStatus"), self.manager.STATUS_SUCCESS)
+        test_data = {
+            "jpeg": {
+                "file": "regression_jpg.jpg",
+                "content": "Debian -- Packages",
+                "mime_type": "image/jpeg",
+            },
+            "gif": {
+                "file": "regression_gif.gif",
+                "content": "This is text inside a GIF image",
+                "mime_type": "image/gif",
+            },
+            # "tiff": {
+            #     "file": "regression_tiff.tiff",
+            #     "content": "Debian -- Packages",
+            #     "mime_type": "image/tiff",
+            # },
+            "webp": {
+                "file": "regression_webp.webp",
+                "content": "Debian -- Packages",
+                "mime_type": "image/webp",
+            },
+            "openjpeg": {
+                "file": "regression_openjpeg.jp2",
+                "content": "Debian -- Packages",
+                "mime_type": "image/jp2",
+            },
+        }
+
+        for test_image_type in test_data:
+            fixture_path, entity = self.fixture(test_data[test_image_type]["file"])
+            self.manager.ingest(fixture_path, entity)
+            self.assertIn(
+                test_data[test_image_type]["content"],
+                entity.first("bodyText"),
+                f"Test failed for {test_data[test_image_type]['file']}",
+            )
+            self.assertEqual(
+                entity.first("mimeType"),
+                test_data[test_image_type]["mime_type"],
+                f"Test failed for {test_data[test_image_type]['file']}",
+            )
+            self.assertEqual(
+                entity.first("processingStatus"),
+                self.manager.STATUS_SUCCESS,
+                f"Test failed for {test_data[test_image_type]['file']}",
+            )