Merge pull request #80 from nspcc-dev/74-zero-size

Add zero size objects support

internal/datagen/generator.go

@@ -35,8 +35,8 @@ type (
 const TailSize = 1024
 
 func NewGenerator(vu modules.VU, size int) Generator {
-	if size <= 0 {
-		panic("size should be positive")
+	if size < 0 {
+		panic("size should not be negative")
 	}
 	return Generator{vu: vu, size: size, buf: nil, offset: 0}
 }

internal/datagen/generator_test.go

@@ -20,10 +20,11 @@ func TestGenerator(t *testing.T) {
 		})
 	})
 
-	t.Run("fails on zero size", func(t *testing.T) {
-		require.Panics(t, func() {
-			_ = NewGenerator(vu, 0)
-		})
+	t.Run("creates slice of zero size", func(t *testing.T) {
+		size := 0
+		g := NewGenerator(vu, size)
+		slice := g.nextSlice()
+		require.Len(t, slice, size)
 	})
 
 	t.Run("creates slice of specified size", func(t *testing.T) {

scenarios/preset/helpers/neofs_cli.py

@@ -13,18 +13,17 @@ def create_container(endpoint, policy, wallet_file, wallet_config):
         print(f" > Container has not been created:\n{output}")
         return False
     else:
-        try:
-            fst_str = output.split('\n')[0]
-        except Exception:
-            print(f"Got empty output: {output}")
-            return False
-        splitted = fst_str.split(": ")
-        if len(splitted) != 2:
-            raise ValueError(f"no CID was parsed from command output: \t{fst_str}")
-
-        print(f"Created container: {splitted[1]}")
-
-        return splitted[1]
+        # Regular expression to find the container ID, case-insensitive
+        pattern = r"container ID: ([A-Za-z0-9]{43,44})"
+
+        # Search for the pattern in the output text with case-insensitive flag
+        match = re.search(pattern, output, re.IGNORECASE)
+        if match:
+            container_id = match.group(1)
+            print(f"Created container: {container_id}")
+            return container_id
+        else:
+            raise ValueError(f"no CID was parsed from command output: \t{output}")
 
 
 def upload_object(container, payload_filepath, endpoint, wallet_file, wallet_config):