diff --git a/src/manager/root.rs b/src/manager/root.rs
index ab68a3b..12ec4a5 100644
--- a/src/manager/root.rs
+++ b/src/manager/root.rs
@@ -260,6 +260,7 @@ impl SteamOSManager {
 mod test {
     use super::*;
     use crate::power::{self, get_gpu_performance_level};
+    use crate::power::test::{format_clocks, read_clocks};
     use crate::testing;
     use tokio::fs::{create_dir_all, write};
     use zbus::{Connection, ConnectionBuilder};
@@ -354,10 +355,10 @@ mod test {
 
         power::test::setup().await;
         proxy.set_manual_gpu_clock(200).await.expect("proxy_set");
-        power::test::expect_clocks(200).await;
+        assert_eq!(read_clocks().await.unwrap(), format_clocks(200));
 
         assert!(proxy.set_manual_gpu_clock(100).await.is_err());
-        power::test::expect_clocks(200).await;
+        assert_eq!(read_clocks().await.unwrap(), format_clocks(200));
     }
 
     #[zbus::proxy(
diff --git a/src/power.rs b/src/power.rs
index 338c0d6..1e43e56 100644
--- a/src/power.rs
+++ b/src/power.rs
@@ -245,12 +245,14 @@ CCLK_RANGE in Core0:
         write(filename.as_path(), contents).await.expect("write");
     }
 
-    pub async fn expect_clocks(mhz: u32) {
+    pub async fn read_clocks() -> Result<String, std::io::Error> {
         let base = find_hwmon().await.unwrap();
-        let clocks = read_to_string(base.join(GPU_CLOCKS_SUFFIX))
+        read_to_string(base.join(GPU_CLOCKS_SUFFIX))
             .await
-            .expect("read");
-        assert_eq!(clocks, format!("s 0 {mhz}\ns 1 {mhz}\nc\n"));
+    }
+
+    pub fn format_clocks(mhz: u32) -> String {
+        format!("s 0 {mhz}\ns 1 {mhz}\nc\n")
     }
 
     #[tokio::test]
@@ -447,10 +449,11 @@ CCLK_RANGE in Core0:
         assert!(set_gpu_clocks(2000).await.is_err());
 
         assert!(set_gpu_clocks(200).await.is_ok());
-        expect_clocks(200).await;
+
+        assert_eq!(read_clocks().await.unwrap(), format_clocks(200));
 
         assert!(set_gpu_clocks(1600).await.is_ok());
-        expect_clocks(1600).await;
+        assert_eq!(read_clocks().await.unwrap(), format_clocks(1600));
     }
 
     #[test]