Fix unknown file panic

src/lib.rs

@@ -71,12 +71,12 @@ pub extern fn c_compress(input_path: *const c_char, output_path: *const c_char,
         parameters.gif.quality = params.gif_quality;
         parameters.webp.quality = params.webp_quality;
 
-        compress(CStr::from_ptr(input_path).to_str().unwrap().to_string(),
+        match compress(CStr::from_ptr(input_path).to_str().unwrap().to_string(),
                  CStr::from_ptr(output_path).to_str().unwrap().to_string(),
-                 parameters)
-            .unwrap();
-
-        true
+                 parameters) {
+            Ok(_) => true,
+            Err(_) => false
+        }
     }
 }
 

src/utils.rs

@@ -8,13 +8,18 @@ pub enum SupportedFileTypes {
 
 pub fn get_filetype(file_path: &str) -> SupportedFileTypes {
     match infer::get_from_path(file_path) {
-        Ok(v) => match v.unwrap().mime_type() {
-            "image/jpeg" => SupportedFileTypes::Jpeg,
-            "image/png" => SupportedFileTypes::Png,
-            "image/gif" => SupportedFileTypes::Gif,
-            "image/webp" => SupportedFileTypes::WebP,
-            _ => SupportedFileTypes::Unkn
+        Ok(v) => match v {
+            None => {
+                SupportedFileTypes::Unkn
+            }
+            Some(ft) => match ft.mime_type() {
+                "image/jpeg" => SupportedFileTypes::Jpeg,
+                "image/png" => SupportedFileTypes::Png,
+                "image/gif" => SupportedFileTypes::Gif,
+                "image/webp" => SupportedFileTypes::WebP,
+                _ => SupportedFileTypes::Unkn
+            }
         },
-        Err(e) => panic!("{}", e)
+        Err(_) => SupportedFileTypes::Unkn
     }
 }

tests/integration.rs

@@ -0,0 +1,11 @@
+use caesium;
+
+#[test]
+fn unknown_file_type() {
+    let output = "tests/samples/output/should_not_be_there";
+    let params = caesium::initialize_parameters();
+    let result = caesium::compress(String::from("tests/samples/output/.gitkeep"),
+                      String::from(output),
+                      params);
+    assert!(result.is_err())
+}