tests: amdgpu: missing file and reserved throttle bits

tests/test_amdgpu.cpp

@@ -13,9 +13,10 @@ extern "C" {
 static void test_amdgpu_verify_metrics(void **state) {
     UNUSED(state);
 
-    assert_false(amdgpu_verify_metrics(""));
-    assert_false(amdgpu_verify_metrics("gpu_metrics_invalid"));
-    assert_true (amdgpu_verify_metrics("gpu_metrics"));
+    assert_false(amdgpu_verify_metrics("./missing_file"));
+    // unsupported struct size, format and content revision
+    assert_false(amdgpu_verify_metrics("./gpu_metrics_invalid"));
+    assert_true (amdgpu_verify_metrics("./gpu_metrics"));
 }
 
 static void test_amdgpu_get_instant_metrics(void **state){
@@ -23,11 +24,11 @@ static void test_amdgpu_get_instant_metrics(void **state){
     struct amdgpu_common_metrics metrics;
 
     // fail fetch gpu_metrics file
-    metrics_path = "";
+    metrics_path = "./missing_file";
     amdgpu_get_instant_metrics(&metrics);
 
     // DGPU
-    metrics_path = "gpu_metrics";
+    metrics_path = "./gpu_metrics";
     metrics = {};
     amdgpu_get_instant_metrics(&metrics);
     assert_int_equal(metrics.gpu_load_percent, 64);
@@ -40,7 +41,16 @@ static void test_amdgpu_get_instant_metrics(void **state){
     assert_false(metrics.is_temp_throttled);
     assert_false(metrics.is_other_throttled);
 
-    metrics_path = "gpu_metrics_apu";
+    // DGPU
+    metrics_path = "./gpu_metrics_reserved_throttle_bits";
+    metrics = {};
+    amdgpu_get_instant_metrics(&metrics);
+    assert_false(metrics.is_power_throttled);
+    assert_false(metrics.is_current_throttled);
+    assert_false(metrics.is_temp_throttled);
+    assert_false(metrics.is_other_throttled);
+
+    metrics_path = "./gpu_metrics_apu";
     metrics = {};
     amdgpu_get_instant_metrics(&metrics);
     assert_int_equal(metrics.gpu_load_percent, 100);
@@ -54,6 +64,7 @@ static void test_amdgpu_get_instant_metrics(void **state){
     assert_false(metrics.is_current_throttled);
     assert_false(metrics.is_temp_throttled);
     assert_false(metrics.is_other_throttled);
+    // amdgpu binary with everything throttled
 }
 
 static void test_amdgpu_get_samples_and_copy(void **state){