From d58f1998cf53e89128d6448006b300135e8a7e8c Mon Sep 17 00:00:00 2001
From: 7000pctAUTO <lukems3823@gmail.com>
Date: Sun, 1 Feb 2026 21:45:54 +0000
Subject: [PATCH] Initial upload: Devtoolbelt v1.0.0 - unified CLI toolkit for
 developers

---
 tests/test_utils.py | 101 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 tests/test_utils.py

diff --git a/tests/test_utils.py b/tests/test_utils.py
new file mode 100644
index 0000000..218b9c6
--- /dev/null
+++ b/tests/test_utils.py
@@ -0,0 +1,101 @@
+"""Tests for utility functions."""
+
+from devtoolbelt.utils import (
+    format_bytes,
+    format_duration,
+    parse_key_value,
+    pluralize,
+    truncate,
+)
+
+
+class TestFormatBytes:
+    """Tests for format_bytes function."""
+
+    def test_bytes(self):
+        assert format_bytes(500) == "500.00 B"
+
+    def test_kilobytes(self):
+        assert format_bytes(2048) == "2.00 KB"
+
+    def test_megabytes(self):
+        assert format_bytes(1048576) == "1.00 MB"
+
+    def test_gigabytes(self):
+        assert format_bytes(1073741824) == "1.00 GB"
+
+
+class TestFormatDuration:
+    """Tests for format_duration function."""
+
+    def test_milliseconds(self):
+        assert format_duration(0.5) == "500ms"
+
+    def test_seconds(self):
+        assert format_duration(30) == "30.0s"
+
+    def test_minutes(self):
+        assert format_duration(120) == "2.0m"
+
+    def test_hours(self):
+        assert format_duration(7200) == "2.0h"
+
+    def test_days(self):
+        assert format_duration(172800) == "2.0d"
+
+
+class TestParseKeyValue:
+    """Tests for parse_key_value function."""
+
+    def test_empty_string(self):
+        assert parse_key_value("") == {}
+
+    def test_single_pair(self):
+        result = parse_key_value("key=value")
+        assert result == {"key": "value"}
+
+    def test_multiple_pairs(self):
+        result = parse_key_value("key1=value1,key2=value2,key3=value3")
+        assert result == {
+            "key1": "value1",
+            "key2": "value2",
+            "key3": "value3"
+        }
+
+    def test_values_with_spaces(self):
+        result = parse_key_value("name=John Doe,role=Admin")
+        assert result == {"name": "John Doe", "role": "Admin"}
+
+    def test_missing_value(self):
+        result = parse_key_value("key")
+        assert result == {}
+
+
+class TestPluralize:
+    """Tests for pluralize function."""
+
+    def test_singular(self):
+        assert pluralize(1, "item") == "item"
+
+    def test_plural(self):
+        assert pluralize(5, "item") == "items"
+
+    def test_custom_plural(self):
+        assert pluralize(1, "child", "children") == "child"
+        assert pluralize(3, "child", "children") == "children"
+
+
+class TestTruncate:
+    """Tests for truncate function."""
+
+    def test_no_truncation_needed(self):
+        assert truncate("hello", 10) == "hello"
+
+    def test_truncation(self):
+        assert truncate("hello world", 8) == "hello..."
+
+    def test_custom_suffix(self):
+        assert truncate("hello world", 8, suffix="***") == "hello***"
+
+    def test_exact_length(self):
+        assert truncate("hello", 5) == "hello"