introduce unit tests.

.github/workflows/main.yml

@@ -7,7 +7,7 @@ on:
       - main
 
 jobs:
-  check:
+  tests:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
@@ -16,7 +16,11 @@ jobs:
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           args: --all-features
-  test:
+      - name: Build
+        run: cargo build
+      - name: Run tests
+        run: cargo test
+  integration_tests:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
@@ -26,10 +30,6 @@ jobs:
       - uses: actions-rs/cargo@v1
         with:
           command: build
-      - name: Print Rust Version
-        run: |
-          rustc -Vv
-          cargo -Vv
       - uses: actions/setup-go@v2
         with:
           go-version: "1.11.0"
@@ -40,7 +40,7 @@ jobs:
           git clone https://github.com/opencontainers/runtime-tools
           cd runtime-tools
           make runtimetest validation-executables
-      - name: Run intetgration test
+      - name: Run intetgration tests
         run: |
           expect_err_num=8
           act_err_num=0

src/utils.rs

@@ -57,3 +57,28 @@ pub fn set_name(_name: &str) -> Result<()> {
     // }
     Ok(())
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_join_absolute_path() {
+        assert_eq!(
+            PathBuf::from("sample/a/")
+                .join_absolute_path(&PathBuf::from("/b"))
+                .unwrap(),
+            PathBuf::from("sample/a/b")
+        );
+    }
+
+    #[test]
+    fn test_join_absolute_path_error() {
+        assert_eq!(
+            PathBuf::from("sample/a/")
+                .join_absolute_path(&PathBuf::from("b/c"))
+                .is_err(),
+            true
+        );
+    }
+}