test for file list input

Signed-off-by: Dmitri Khokhlov <dkhokhlov@gmail.com>

test-integration/test_integration/fixtures/file-input-project/predict.py

@@ -1,7 +1,10 @@
-from cog import BasePredictor, Path
+from cog import BasePredictor, File
 
 
 class Predictor(BasePredictor):
-    def predict(self, path: Path) -> str:
-        with open(path) as f:
-            return f.read()
+    def predict(self, file: File) -> str:
+        content = file.read()
+        if isinstance(content, bytes):
+            # Decode bytes to str assuming UTF-8 encoding; adjust if needed
+            content = content.decode('utf-8')
+        return content

test-integration/test_integration/fixtures/file-input-project/test.txt

@@ -0,0 +1 @@
+text

test-integration/test_integration/fixtures/file-list-input-project/cog.yaml

@@ -0,0 +1,3 @@
+build:
+  python_version: "3.11"
+predict: "predict.py:Predictor"

test-integration/test_integration/fixtures/file-list-input-project/predict.py

@@ -0,0 +1,14 @@
+from cog import BasePredictor, File
+
+
+class Predictor(BasePredictor):
+    def predict(self, files: list[File]) -> str:
+        output_parts = []  # Use a list to collect file contents
+        for f in files:
+            # Assuming file content is in bytes, decode to str before appending
+            content = f.read()
+            if isinstance(content, bytes):
+                # Decode bytes to str assuming UTF-8 encoding; adjust if needed
+                content = content.decode('utf-8')
+            output_parts.append(content)
+        return "\n\n".join(output_parts)