Add more tests

tests/source/remove_blank_lines.rs

@@ -6,10 +6,16 @@ fn main() {
     let x = 1;
 
 
+    let y = 2;
+
+
+    println!("x + y = {}", x + y);
+
 
 
 }
 
+
 fn foo() {
 
     #![attribute]
@@ -20,3 +26,19 @@ fn foo() {
 
 
 }
+// comment after item
+
+
+// comment before item
+fn bar() {
+    let x = 1;
+    // comment after statement
+
+
+    // comment before statment
+    let y = 2;
+    let z = 3;
+
+
+    println!("x + y + z = {}", x + y + z);
+}

tests/target/remove_blank_lines.rs

@@ -1,5 +1,9 @@
 fn main() {
     let x = 1;
+
+    let y = 2;
+
+    println!("x + y = {}", x + y);
 }
 
 fn foo() {
@@ -9,3 +13,16 @@ fn foo() {
 
     // comment
 }
+// comment after item
+
+// comment before item
+fn bar() {
+    let x = 1;
+    // comment after statement
+
+    // comment before statment
+    let y = 2;
+    let z = 3;
+
+    println!("x + y + z = {}", x + y + z);
+}