added test for everything container related

src/virt/buildah/containers.rs

@@ -52,3 +52,33 @@ pub fn remove(container: &str) -> Result<CommandResult, BuildahError> {
 pub fn list() -> Result<CommandResult, BuildahError> {
     execute_buildah_command(&["containers"])
 }
+
+/// Build an image from a Containerfile/Dockerfile
+///
+/// # Arguments
+///
+/// * `tag` - Optional tag for the image (e.g., "my-app:latest")
+/// * `context_dir` - The directory containing the Containerfile/Dockerfile (usually ".")
+/// * `file` - Optional path to a specific Containerfile/Dockerfile
+/// * `isolation` - Optional isolation method (e.g., "chroot", "rootless", "oci")
+pub fn build(tag: Option<&str>, context_dir: &str, file: &str, isolation: Option<&str>) -> Result<CommandResult, BuildahError> {
+    let mut args = Vec::new();
+    args.push("build");
+    
+    if let Some(tag_value) = tag {
+        args.push("-t");
+        args.push(tag_value);
+    }
+    
+    if let Some(isolation_value) = isolation {
+        args.push("--isolation");
+        args.push(isolation_value);
+    }
+    
+    args.push("-f");
+    args.push(file);
+    
+    args.push(context_dir);
+    
+    execute_buildah_command(&args)
+}