Hook up notexist test

Author: ISSOtm

tests/rgbasm.rs

@@ -5,7 +5,8 @@ use tempfile::NamedTempFile;
 
 datatest_stable::harness! {
     { test = run_test, root = "tests/rgbasm", pattern = r"test\.asm$" },
-    // TODO: `version.asm`, `notexist.asn`, other special tests in `test.sh`
+    { test = run_notexist_test, root = "tests/rgbasm", pattern = r"notexist/stderr\.log$" },
+    // TODO: `version.asm`, other special tests in `test.sh`
 }
 
 const RGBASM_PATH: &str = env!("CARGO_BIN_EXE_rgbasm");
@@ -16,6 +17,10 @@ const ACTION_ENV_VAR_NAME: &str = "SNAPSHOTS_ASM";
 // Game Boy release date, 1989-04-21T12:34:56Z (for reproducible test results)
 const TIMESTAMP: &str = "609165296";
 
+fn run_notexist_test(err_path: &Utf8Path) -> datatest_stable::Result<()> {
+    run_test(&err_path.with_file_name("test.asm"))
+}
+
 fn run_test(asm_path: &Utf8Path) -> datatest_stable::Result<()> {
     // We need to pass the path to `rgbasm`, but we don't really care for security.
     let obj_file = NamedTempFile::new().context("Unable to create temp obj file")?;

tests/rgbasm/notexist.err

@@ -0,0 +1,5 @@
+error: failed to open "tests/rgbasm/notexist/test.asm"
+  │ 
+  │ Note: No such file or directory (os error 2)
+──╯
+1 error generated.