Update ruby and python tests (#17)

wasm-thumbnail-py/src/wasm_thumbnail/thumbnail.py

@@ -28,19 +28,39 @@ def decode_padded_image(data):
 def resize_and_pad_image(image_bytes, width, height, size, quality = 80):
     """Resize an image and pad to fit size, output is prefixed by image length without padding.
     Throws an error if the resized image does not fit in size or is not a supported format"""
-    instance = Instance(module, import_object)
 
+    wasm = resources.open_binary('wasm_thumbnail.data', "wasm_thumbnail.wasm")
+    store = Store(engine.JIT(Compiler))
+    module = Module(store, wasm.read())
+    import_object = ImportObject()
+    import_object.register(
+        "env",
+        {
+            "register_panic": Function(store, register_panic)
+        }
+    )
+    instance = Instance(module, import_object)
     image_length = len(image_bytes)
     input_pointer = instance.exports.allocate(image_length)
     memory = instance.exports.memory.uint8_view(input_pointer)
     memory[0:image_length] = image_bytes
 
-    output_pointer = instance.exports.resize_and_pad(input_pointer, image_length, width, height, size, quality)
-    instance.exports.deallocate(input_pointer, image_length)
+    try:
+        output_pointer = instance.exports.resize_and_pad(
+            input_pointer, image_length, width, height, size, quality
+        )
+        instance.exports.deallocate(input_pointer, image_length)
+
+        memory = instance.exports.memory.uint8_view(output_pointer)
+        out_bytes = bytes(memory[:size])
+
+        instance.exports.deallocate(output_pointer, size)
 
-    memory = instance.exports.memory.uint8_view(output_pointer)
-    out_bytes = bytes(memory[:size])
-    instance.exports.deallocate(output_pointer, size)
+    except RuntimeError:
+        print(
+            f"resize_and_pad() hit a RuntimeError "
+            f"(length={image_length}, width={width}, height={height}, size={size}):"
+        )
 
     unpadded_length = get_unpadded_length(out_bytes)
     if unpadded_length == 0:

wasm-thumbnail-rb/test/wasm/thumbnail/rb_test.rb

@@ -34,7 +34,7 @@ def test_it_calls_panic_if_image_too_big
                                          height: 200,
                                          size: 5)
     end
-    assert_equal(exception.message, "Error processing the image.")
+    assert_equal(exception.message.split(/:/, 2).first, "Error processing the image")
   end
 
   def test_should_not_crash_after_many_resizes