add build-test for new build failures

Author: syphar

src/docbuilder/rustwide_builder.rs

@@ -1363,6 +1363,49 @@ mod tests {
         });
     }
 
+    #[test]
+    #[ignore]
+    fn test_build_failures_before_build() {
+        wrapper(|env| {
+            // https://github.com/rust-lang/docs.rs/issues/2491
+            // package without cargo.toml, so fails directly in the fetch stage.
+            let crate_ = "emheap";
+            let version = "0.1.0";
+            let mut builder = RustwideBuilder::init(env).unwrap();
+            builder.update_toolchain()?;
+
+            // `Result` is `Ok`, but the build-result is `false`
+            assert!(!builder.build_package(crate_, version, PackageKind::CratesIo)?);
+
+            let row = env.runtime().block_on(async {
+                let mut conn = env.async_db().await.async_conn().await;
+                sqlx::query!(
+                    r#"SELECT
+                       rustc_version,
+                       docsrs_version,
+                       build_status as "build_status: BuildStatus",
+                       errors
+                       FROM
+                       crates as c
+                       INNER JOIN releases as r on c.id = r.crate_id
+                       INNER JOIN builds as b on b.rid = r.id
+                       WHERE c.name = $1 and r.version = $2"#,
+                    crate_,
+                    version,
+                )
+                .fetch_one(&mut *conn)
+                .await
+            })?;
+
+            assert!(row.rustc_version.is_none());
+            assert!(row.docsrs_version.is_none());
+            assert_eq!(row.build_status, BuildStatus::Failure);
+            assert_eq!(row.errors, Some("error message".into()));
+
+            Ok(())
+        });
+    }
+
     #[test]
     #[ignore]
     fn test_implicit_features_for_optional_dependencies() {