Made test for iteration order a unit test

# Conflicts:
#	string-cache-codegen/tests/reproducibility_test.rs

Author: Ygg01

string-cache-codegen/Cargo.toml

@@ -12,10 +12,6 @@ edition = "2018"
 name = "string_cache_codegen"
 path = "lib.rs"
 
-[[test]]
-name = "reproducibility_test"
-harness = true
-
 [dependencies]
 phf_generator = "0.11"
 phf_shared = "0.11"

string-cache-codegen/lib.rs

@@ -181,6 +181,7 @@ impl AtomType {
         )
     }
 
+    #[cfg(test)]
     /// Write generated code to destination [`Vec<u8>`] and return it as [`String`]
     /// 
     /// Used mostly for testing or displaying a value. 
@@ -334,3 +335,16 @@ impl AtomType {
         self.write_to(BufWriter::new(File::create(path)?))
     }
 }
+
+#[test]
+fn test_iteration_order() {
+    let x1 = crate::AtomType::new("foo::Atom", "foo_atom!")
+        .atoms(&["x", "xlink", "svg", "test"])
+        .write_to_string(Vec::new()).expect("write to string cache x1");
+
+    let x2 = crate::AtomType::new("foo::Atom", "foo_atom!")
+        .atoms(&["x", "xlink", "svg", "test"])
+        .write_to_string(Vec::new()).expect("write to string cache x2");
+
+    assert_eq!(x1, x2);
+}