v0.2.2.2 (#830)

v0.2.2.2 (#830)

backend/tests/unit/test_spoolbuddy_system_stats.py

@@ -0,0 +1,122 @@
+"""Tests for SpoolBuddy daemon system_stats collector."""
+
+import pytest
+
+pytest.importorskip("spoolbuddy", reason="spoolbuddy package not available in Docker")
+
+from unittest.mock import patch
+
+from spoolbuddy.daemon.system_stats import (
+    _cpu_count,
+    _cpu_temp,
+    _disk_info,
+    _load_avg,
+    _memory_info,
+    _os_info,
+    _system_uptime,
+    collect,
+)
+
+
+class TestCpuTemp:
+    def test_reads_thermal_zone(self):
+        with patch("spoolbuddy.daemon.system_stats._read_file", return_value="52100"):
+            assert _cpu_temp() == 52.1
+
+    def test_returns_none_on_missing_file(self):
+        with patch("spoolbuddy.daemon.system_stats._read_file", return_value=None):
+            assert _cpu_temp() is None
+
+    def test_returns_none_on_bad_value(self):
+        with patch("spoolbuddy.daemon.system_stats._read_file", return_value="not_a_number"):
+            assert _cpu_temp() is None
+
+
+class TestMemoryInfo:
+    SAMPLE_MEMINFO = (
+        "MemTotal:        1024000 kB\n"
+        "MemFree:          200000 kB\n"
+        "MemAvailable:     512000 kB\n"
+        "Buffers:           50000 kB\n"
+    )
+
+    def test_parses_meminfo(self):
+        with patch("spoolbuddy.daemon.system_stats._read_file", return_value=self.SAMPLE_MEMINFO):
+            result = _memory_info()
+            assert result is not None
+            assert result["total_mb"] == 1000
+            assert result["available_mb"] == 500
+            assert result["used_mb"] == 500
+            assert result["percent"] == 50.0
+
+    def test_returns_none_on_missing(self):
+        with patch("spoolbuddy.daemon.system_stats._read_file", return_value=None):
+            assert _memory_info() is None
+
+
+class TestDiskInfo:
+    def test_returns_disk_stats(self):
+        result = _disk_info()
+        # Should always work on Linux
+        assert result is not None
+        assert "total_gb" in result
+        assert "used_gb" in result
+        assert "free_gb" in result
+        assert "percent" in result
+        assert 0 <= result["percent"] <= 100
+
+
+class TestLoadAvg:
+    def test_returns_three_values(self):
+        result = _load_avg()
+        assert result is not None
+        assert len(result) == 3
+        for val in result:
+            assert isinstance(val, float)
+
+
+class TestCpuCount:
+    def test_returns_positive_int(self):
+        result = _cpu_count()
+        assert result is not None
+        assert result > 0
+
+
+class TestOsInfo:
+    def test_returns_required_keys(self):
+        result = _os_info()
+        assert "os" in result
+        assert "kernel" in result
+        assert "arch" in result
+        assert "python" in result
+
+    def test_parses_pretty_name(self):
+        fake_release = 'PRETTY_NAME="Raspbian GNU/Linux 12 (bookworm)"\nID=raspbian\n'
+        with patch("spoolbuddy.daemon.system_stats._read_file", return_value=fake_release):
+            result = _os_info()
+            assert result["os"] == "Raspbian GNU/Linux 12 (bookworm)"
+
+
+class TestSystemUptime:
+    def test_parses_uptime(self):
+        with patch("spoolbuddy.daemon.system_stats._read_file", return_value="86400.55 172000.10"):
+            assert _system_uptime() == 86400
+
+    def test_returns_none_on_missing(self):
+        with patch("spoolbuddy.daemon.system_stats._read_file", return_value=None):
+            assert _system_uptime() is None
+
+
+class TestCollect:
+    def test_returns_dict_with_expected_keys(self):
+        result = collect()
+        assert isinstance(result, dict)
+        assert "os" in result
+        # These may or may not be present depending on platform, but os is always present
+
+    def test_all_values_are_json_serializable(self):
+        import json
+
+        result = collect()
+        # Should not raise
+        json.dumps(result)