use system's appropriate line ending

helix-term/tests/integration/auto_indent.rs

@@ -10,13 +10,14 @@ async fn auto_indent_c() -> anyhow::Result<()> {
         Config::default(),
         // switches to append mode?
         (
-            "void foo() {#[|}]#\n",
+            helpers::platform_line("void foo() {#[|}]#").as_ref(),
             "i<ret><esc>",
-            indoc! {"\
+            helpers::platform_line(indoc! {"\
                 void foo() {
                   #[|\n]#\
                 }
-            "},
+            "})
+            .as_ref(),
         ),
     )
     .await?;

helix-term/tests/integration/helpers.rs

@@ -138,3 +138,20 @@ pub fn temp_file_with_contents<S: AsRef<str>>(
     temp_file.as_file_mut().sync_all()?;
     Ok(temp_file)
 }
+
+/// Replaces all LF chars with the system's appropriate line feed
+/// character, and if one doesn't exist already, appends the system's
+/// appropriate line ending to the end of a string.
+pub fn platform_line(input: &str) -> String {
+    let line_end = helix_core::DEFAULT_LINE_ENDING.as_str();
+
+    // we can assume that the source files in this code base will always
+    // be LF, so indoc strings will always insert LF
+    let mut output = input.replace("\n", line_end);
+
+    if !output.ends_with(line_end) {
+        output.push_str(line_end);
+    }
+
+    output
+}

helix-term/tests/integration/write.rs

@@ -31,7 +31,10 @@ async fn test_write() -> anyhow::Result<()> {
 
     let mut file_content = String::new();
     file.as_file_mut().read_to_string(&mut file_content)?;
-    assert_eq!("i can eat glass, it will not hurt me\n", file_content);
+    assert_eq!(
+        helpers::platform_line("i can eat glass, it will not hurt me"),
+        file_content
+    );
 
     Ok(())
 }