Bubble up the error to main instead of panicking

tests/integration.rs

@@ -1,4 +1,28 @@
 use tradaf::*;
+/*
+use std::{
+    format,
+    fs::{read_dir, read_to_string},
+};
+
+use expect_test::{expect, Expect};
+
+fn check(input: &str, expected: Expect) {}
+
+#[test]
+fn smoke() {
+    check("", "");
+}
+
+#[test]
+fn test_all() {
+    for file in read_dir("./test_data/in") {
+        let input = read_to_string(&format!("./test_data/in/{}", file));
+        let output = read_to_string(&format!("./test_data/out/{}", file));
+        check(input, output)
+    }
+}
+*/
 
 fn example_to_vec(file: &str) -> Vec<u8> {
     use std::fs::File;
@@ -25,13 +49,13 @@ fn ron_to_json() {
         format_out: None,
 
         pretty: true,
-        no_newline: false,
+        no_extra_line: false,
     };
 
     let input = example_to_vec("test-data/materials.ron");
 
     let mut output = vec![];
-    transcode(opt, &mut input.as_slice(), &mut output);
+    transcode(opt, &mut input.as_slice(), &mut output).unwrap();
     let out = String::from_utf8(output).unwrap();
 
     let control = example_to_string("test-data/materials.json");
@@ -49,13 +73,13 @@ fn json5_read_json() {
         format_out: None,
 
         pretty: true,
-        no_newline: false,
+        no_extra_line: false,
     };
 
     let input = example_to_vec("test-data/materials.json");
 
     let mut output = vec![];
-    transcode(opt, &mut input.as_slice(), &mut output);
+    transcode(opt, &mut input.as_slice(), &mut output).unwrap();
     let out = String::from_utf8(output).unwrap();
 
     let control = example_to_string("test-data/materials.json");