Update test assertions to match new edit reply format

The text_editor output changed from 'The file has been edited' and
'Text has been inserted at line N' to 'Successfully replaced text in'
and 'Successfully inserted ... at line N'. Update the 5 failing test
assertions accordingly.

Author: michaelneale

crates/goose-mcp/src/developer/rmcp_developer.rs

@@ -1835,10 +1835,9 @@ mod tests {
             .as_text()
             .unwrap();
 
-        assert!(
-            assistant_content.text.contains("The file")
-                && assistant_content.text.contains("has been edited")
-        );
+        assert!(assistant_content
+            .text
+            .contains("Successfully replaced text in"));
 
         // Verify the file contents changed
         let content = fs::read_to_string(&file_path).unwrap();
@@ -2308,7 +2307,7 @@ mod tests {
             .as_text()
             .unwrap();
 
-        assert!(text.text.contains("Text has been inserted at line 1"));
+        assert!(text.text.contains("Successfully inserted") && text.text.contains("at line 1"));
 
         // Verify the file content by reading it directly
         let file_content = fs::read_to_string(&file_path).unwrap();
@@ -2365,7 +2364,7 @@ mod tests {
             .as_text()
             .unwrap();
 
-        assert!(text.text.contains("Text has been inserted at line 3"));
+        assert!(text.text.contains("Successfully inserted") && text.text.contains("at line 3"));
 
         // Verify the file content by reading it directly
         let file_content = fs::read_to_string(&file_path).unwrap();
@@ -2427,7 +2426,7 @@ mod tests {
             .as_text()
             .unwrap();
 
-        assert!(text.text.contains("Text has been inserted at line 4"));
+        assert!(text.text.contains("Successfully inserted") && text.text.contains("at line 4"));
 
         // Verify the file content by reading it directly
         let file_content = fs::read_to_string(&file_path).unwrap();
@@ -2484,7 +2483,7 @@ mod tests {
             .as_text()
             .unwrap();
 
-        assert!(text.text.contains("Text has been inserted at line 4"));
+        assert!(text.text.contains("Successfully inserted") && text.text.contains("at line 4"));
 
         // Verify the file content by reading it directly
         let file_content = fs::read_to_string(&file_path).unwrap();