Rename TestDecode to YamlDecode

tests/ef_tests/src/yaml_decode/utils.rs

@@ -0,0 +1,24 @@
+use yaml_rust::{Yaml, YamlEmitter, YamlLoader};
+
+pub fn extract_yaml_by_key(yaml: &str, key: &str) -> String {
+    let doc = &YamlLoader::load_from_str(yaml).unwrap()[0];
+    let subsection = &doc[key];
+
+    yaml_to_string(subsection)
+}
+
+pub fn extract_yaml_by_index(yaml: &str, index: usize) -> String {
+    let doc = &YamlLoader::load_from_str(yaml).unwrap()[0];
+    let subsection = &doc[index];
+
+    yaml_to_string(subsection)
+}
+
+pub fn yaml_to_string(yaml: &Yaml) -> String {
+    let mut out_str = String::new();
+    let mut emitter = YamlEmitter::new(&mut out_str);
+    emitter.escape_all_strings(true);
+    emitter.dump(yaml).unwrap();
+
+    out_str
+}