提交 #1

build/rust/tests/test_rust_ut/src/main.rs

@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//! rust unittest build
+
+/// pub add
+pub fn add(a: i32, b: i32) -> i32 {
+    a + b
+}
+
+// This is a really bad adding function, its purpose is to fail in this
+// example.
+#[allow(dead_code)]
+fn bad_add(a: i32, b: i32) -> i32 {
+    a - b
+}
+
+#[cfg(test)]
+mod tests {
+    // Note this useful idiom: importing names from outer (for mod tests) scope.
+    use super::*;
+
+    #[test]
+    fn test_add() {
+        assert_eq!(add(1, 2), 3);
+    }
+
+    #[test]
+    fn test_bad_add() {
+        // This assert would fire and test will fail.
+        // Please note, that private functions can be tested too!
+        assert_eq!(bad_add(1, 2), 3);
+    }
+}