Report whether all the tests passed.

src/bin_foreign_document_test.rs

@@ -2,6 +2,7 @@
 #![feature(exact_size_is_empty)]
 use std::path::Path;
 use std::path::PathBuf;
+use std::process::ExitCode;
 
 use futures::future::BoxFuture;
 use futures::future::FutureExt;
@@ -18,7 +19,7 @@ use crate::init_tracing::shutdown_telemetry;
 mod init_tracing;
 
 #[cfg(not(feature = "tracing"))]
-fn main() -> Result<(), Box<dyn std::error::Error>> {
+fn main() -> Result<ExitCode, Box<dyn std::error::Error>> {
     let rt = tokio::runtime::Runtime::new()?;
     let result = rt.block_on(async {
         let main_body_result = main_body().await;
@@ -28,7 +29,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
 }
 
 #[cfg(feature = "tracing")]
-fn main() -> Result<(), Box<dyn std::error::Error>> {
+fn main() -> Result<ExitCode, Box<dyn std::error::Error>> {
     let rt = tokio::runtime::Runtime::new()?;
     let result = rt.block_on(async {
         init_telemetry()?;
@@ -40,7 +41,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
 }
 
 #[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
-async fn main_body() -> Result<(), Box<dyn std::error::Error>> {
+async fn main_body() -> Result<ExitCode, Box<dyn std::error::Error>> {
     let layer = compare_group("org-mode", || {
         compare_all_org_document("/foreign_documents/org-mode")
     });
@@ -56,12 +57,30 @@ async fn main_body() -> Result<(), Box<dyn std::error::Error>> {
     }));
 
     let running_tests: Vec<_> = layer.map(|c| tokio::spawn(c.run_test())).collect();
+    let mut any_failed = false;
     for test in running_tests.into_iter() {
         let test_result = test.await??;
+        if test_result.is_immediately_bad() || test_result.has_bad_children() {
+            any_failed = true;
+        }
         test_result.print();
     }
 
-    Ok(())
+    if any_failed {
+        println!(
+            "{color}Some tests failed.{reset}",
+            color = TestResult::foreground_color(255, 0, 0),
+            reset = TestResult::reset_color(),
+        );
+        Ok(ExitCode::FAILURE)
+    } else {
+        println!(
+            "{color}All tests passed.{reset}",
+            color = TestResult::foreground_color(0, 255, 0),
+            reset = TestResult::reset_color(),
+        );
+        Ok(ExitCode::SUCCESS)
+    }
 }
 
 fn compare_howard_abrams() -> impl Iterator<Item = TestConfig> {