rust-lang · bors · May 17, 2018 · May 16, 2018 · May 16, 2018 · May 16, 2018
diff --git a/src/test/ui/compare-method/proj-outlives-region.stdout b/src/test/ui/compare-method/proj-outlives-region.stdout
diff --git a/src/test/ui/compare-method/region-extra.stdout b/src/test/ui/compare-method/region-extra.stdout
diff --git a/src/test/ui/compare-method/region-unrelated.stdout b/src/test/ui/compare-method/region-unrelated.stdout
diff --git a/src/test/ui/const-eval/const_transmute.stderr b/src/test/ui/const-eval/const_transmute.stderr
diff --git a/src/test/ui/const-expr-addr-operator.stderr b/src/test/ui/const-expr-addr-operator.stderr
diff --git a/src/test/ui/const-pattern-not-const-evaluable.stderr b/src/test/ui/const-pattern-not-const-evaluable.stderr
diff --git a/src/test/ui/feature-gate-const-indexing.stderr b/src/test/ui/feature-gate-const-indexing.stderr
diff --git a/src/test/ui/issue-38875/issue_38875.stderr b/src/test/ui/issue-38875/issue_38875.stderr
diff --git a/src/test/ui/nll/drop-may-dangle.stderr b/src/test/ui/nll/drop-may-dangle.stderr
diff --git a/src/test/ui/nll/maybe-initialized-drop-uninitialized.stderr b/src/test/ui/nll/maybe-initialized-drop-uninitialized.stderr
diff --git a/src/test/ui/nll/ty-outlives/ty-param-implied-bounds.stderr b/src/test/ui/nll/ty-outlives/ty-param-implied-bounds.stderr
diff --git a/src/test/ui/print_type_sizes/anonymous.stderr b/src/test/ui/print_type_sizes/anonymous.stderr
diff --git a/src/test/ui/print_type_sizes/anonymous.stdout b/src/test/ui/print_type_sizes/anonymous.stdout
diff --git a/src/test/ui/print_type_sizes/multiple_types.stderr b/src/test/ui/print_type_sizes/multiple_types.stderr
diff --git a/src/test/ui/print_type_sizes/packed.stderr b/src/test/ui/print_type_sizes/packed.stderr
diff --git a/src/test/ui/print_type_sizes/repr-align.stderr b/src/test/ui/print_type_sizes/repr-align.stderr
diff --git a/src/test/ui/reachable/expr_andand.stderr b/src/test/ui/reachable/expr_andand.stderr
diff --git a/src/test/ui/reachable/expr_oror.stderr b/src/test/ui/reachable/expr_oror.stderr
diff --git a/src/test/ui/rfc1598-generic-associated-types/generic-associated-types-where.stderr b/src/test/ui/rfc1598-generic-associated-types/generic-associated-types-where.stderr
diff --git a/src/test/ui/rfc1598-generic-associated-types/shadowing.stdout b/src/test/ui/rfc1598-generic-associated-types/shadowing.stdout
diff --git a/src/test/ui/trivial-bounds-inconsistent-associated-functions.stderr b/src/test/ui/trivial-bounds-inconsistent-associated-functions.stderr
diff --git a/src/test/ui/union/union-const-eval.stderr b/src/test/ui/union/union-const-eval.stderr
diff --git a/src/tools/tidy/src/ui_tests.rs b/src/tools/tidy/src/ui_tests.rs
@@ -10,32 +10,49 @@
 
 //! Tidy check to ensure that there are no stray `.stderr` files in UI test directories.
 
+use std::fs;
 use std::path::Path;
 
 pub fn check(path: &Path, bad: &mut bool) {
-    super::walk_many(&[&path.join("test/ui"), &path.join("test/ui-fulldeps")],
-                     &mut |_| false,
-                     &mut |file_path| {
-        if let Some(ext) = file_path.extension() {
-            if ext == "stderr" || ext == "stdout" {
-                // Test output filenames have the format:
-                // $testname.stderr
-                // $testname.$mode.stderr
-                // $testname.$revision.stderr
-                // $testname.$revision.$mode.stderr
-                //
-                // For now, just make sure that there is a corresponding
-                // $testname.rs file.
-                let testname = file_path.file_name().unwrap()
-                                        .to_str().unwrap()
-                                        .splitn(2, '.').next().unwrap();
-                if !file_path.with_file_name(testname)
-                             .with_extension("rs")
-                             .exists() {
-                    println!("Stray file with UI testing output: {:?}", file_path);
-                    *bad = true;
+    super::walk_many(
+        &[&path.join("test/ui"), &path.join("test/ui-fulldeps")],
+        &mut |_| false,
+        &mut |file_path| {
+            if let Some(ext) = file_path.extension() {
+                if ext == "stderr" || ext == "stdout" {
+                    // Test output filenames have the format:
+                    // $testname.stderr
+                    // $testname.$mode.stderr
+                    // $testname.$revision.stderr
+                    // $testname.$revision.$mode.stderr
+                    //
+                    // For now, just make sure that there is a corresponding
+                    // $testname.rs file.
+                    let testname = file_path
+                        .file_name()
+                        .unwrap()
+                        .to_str()
+                        .unwrap()
+                        .splitn(2, '.')
+                        .next()
+                        .unwrap();
+                    if !file_path
+                        .with_file_name(testname)
+                        .with_extension("rs")
+                        .exists()
+                    {
+                        println!("Stray file with UI testing output: {:?}", file_path);
+                        *bad = true;
+                    }
+
+                    if let Ok(metadata) = fs::metadata(file_path) {
+                        if metadata.len() == 0 {
+                            println!("Empty file with UI testing output: {:?}", file_path);
+                            *bad = true;
+                        }
+                    }
                 }
             }
-        }
-    });
+        },
+    );
 }