impemented mock testing

tests/heuristic_discovery_test.rs

@@ -0,0 +1,45 @@
+use ember_tune_rs::sal::heuristic::discovery::discover_facts;
+use ember_tune_rs::sal::heuristic::schema::{Discovery, SensorDiscovery, ActuatorDiscovery, Benchmarking};
+use crate::common::fakesys::FakeSysBuilder;
+
+mod common;
+
+#[test]
+fn test_heuristic_discovery_with_fakesys() {
+    let fake = FakeSysBuilder::new();
+    fake.add_dmi("Dell Inc.", "XPS 13 9380")
+        .add_hwmon("dell_smm", "Package id 0", "45000")
+        .add_rapl("intel-rapl:0", "123456", "15000000")
+        .add_proc_cmdline("quiet msr.allow_writes=on");
+
+    let discovery = Discovery {
+        sensors: SensorDiscovery {
+            temp_labels: vec!["Package id 0".to_string()],
+            fan_labels: vec![],
+            hwmon_priority: vec!["dell_smm".to_string()],
+        },
+        actuators: ActuatorDiscovery {
+            rapl_paths: vec!["intel-rapl:0".to_string()],
+            amd_energy_paths: vec![],
+            governor_files: vec![],
+        },
+        configs: std::collections::HashMap::new(),
+        tools: std::collections::HashMap::new(),
+    };
+
+    let benchmarking = Benchmarking {
+        idle_duration_s: 1,
+        stress_duration_min_s: 1,
+        stress_duration_max_s: 2,
+        cool_down_s: 1,
+        power_steps_watts: vec![10.0, 15.0],
+    };
+
+    let facts = discover_facts(&fake.base_path(), &discovery, &[], benchmarking);
+
+    assert_eq!(facts.vendor, "Dell Inc.");
+    assert_eq!(facts.model, "XPS 13 9380");
+    assert!(facts.temp_path.is_some());
+    assert!(facts.temp_path.unwrap().to_string_lossy().contains("hwmon0/temp1_input"));
+    assert_eq!(facts.rapl_paths.len(), 1);
+}