diff --git a/src/tests.rs b/src/tests.rs
index 28fbc0a..25dd054 100644
--- a/src/tests.rs
+++ b/src/tests.rs
@@ -151,7 +151,8 @@ mod tests {
                 cmd,
                 output.status
             );
-            assert!(String::from_utf8_lossy(&output.stdout).contains("test content A"));
+            let output_str = String::from_utf8_lossy(&output.stdout).to_string();
+            assert!(output_str.contains("test content A"), "Command output does not contain expected string. Command: {}  Output: {}  Expected: \"test content A\"", cmd, output_str);
 
             let cmd = format!("{} --get tag_b", env);
             let output = run_sh(cmd.as_str());
@@ -280,8 +281,10 @@ mod tests {
                 cmd,
                 output.status
             );
-            assert!(String::from_utf8_lossy(&output.stdout).contains("test content A"));
-            assert!(String::from_utf8_lossy(&output.stdout).contains("test content B"));
+            let output_str = String::from_utf8_lossy(&output.stdout).to_string();
+            assert!(output_str.contains("test content A"), "Command output does not contain expected string. Command: {}  Output: {}  Expected: \"test content A\"", cmd, output_str);
+            let output_str = String::from_utf8_lossy(&output.stdout).to_string();
+            assert!(output_str.contains("test content B"), "Command output does not contain expected string. Command: {}  Output: {}  Expected: \"test content B\"", cmd, output_str);
 
             let cmd = format!("{} --diff tag_a tag_b", env);
             let output = run_sh(cmd.as_str());