WIP: add more tests

Cargo.toml

@@ -22,7 +22,8 @@ tokio-stream = { version = "0.1.15", features = ["sync"] }
 [dev-dependencies]
 env_logger = "0.10.0"
 test-log = "0.2.15"
-tokio = { version = "1.37.0", features = ["rt-multi-thread", "time"] }
+tokio = { version = "1.37.0", features = ["rt-multi-thread", "time", "process"] }
+uuid = { version = "1.8.0", features = ["v4"] }
 
 [lib]
 doctest = false

flake.nix

@@ -26,9 +26,10 @@
     devShell = forAllSystems (system: pkgs: toolchain: pkgs.mkShell {
       packages = [
         (toolchain.withComponents [
-          "cargo" "rustc" "rustfmt" "clippy"
+          "cargo" "rustc" "rustfmt" "clippy" "llvm-tools"
         ])
         pkgs.mpv
+        pkgs.grcov
       ];
       RUST_SRC_PATH = "${toolchain.rust-src}/lib/rustlib/src/rust/";
     });

scripts/coverage.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+mkdir -p target/coverage
+
+echo "Running tests"
+RUSTFLAGS="-Cinstrument-coverage" LLVM_PROFILE_FILE="target/coverage/%p-%m.profraw" cargo test --all-features --release --no-fail-fast --lib --bins
+
+echo "Generating coverage report"
+grcov \
+  --source-dir . \
+  --binary-path ./target/release/deps/ \
+  --excl-start 'mod test* \{' \
+  --ignore 'tests/*' \
+  --ignore "*test.rs" \
+  --ignore "*tests.rs" \
+  --ignore "*github.com*" \
+  --ignore "*libcore*" \
+  --ignore "*rustc*" \
+  --ignore "*liballoc*" \
+  --ignore "*cargo*" \
+  -t html \
+  -o ./target/coverage/html \
+  target/coverage/

src/core_api.rs

@@ -68,7 +68,7 @@ pub(crate) trait IntoRawCommandPart {
 }
 
 /// Generic data type representing all possible data types that mpv can return.
-#[derive(Debug, Clone, Serialize, Deserialize)]
+#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
 pub enum MpvDataType {
     Array(Vec<MpvDataType>),
     Bool(bool),

src/message_parser.rs

@@ -136,61 +136,27 @@ pub(crate) fn json_map_to_hashmap(
 }
 
 pub(crate) fn json_array_to_vec(array: &[Value]) -> Vec<MpvDataType> {
-    let mut output: Vec<MpvDataType> = Vec::new();
-    if !array.is_empty() {
-        match array[0] {
-            Value::Array(_) => {
-                for entry in array {
-                    if let Value::Array(ref a) = *entry {
-                        output.push(MpvDataType::Array(json_array_to_vec(a)));
-                    }
+    array
+        .iter()
+        .map(|entry| match entry {
+            Value::Array(a) => MpvDataType::Array(json_array_to_vec(a)),
+            Value::Bool(b) => MpvDataType::Bool(*b),
+            Value::Number(n) => {
+                if n.is_u64() {
+                    MpvDataType::Usize(n.as_u64().unwrap() as usize)
+                } else if n.is_f64() {
+                    MpvDataType::Double(n.as_f64().unwrap())
+                } else {
+                    panic!("unimplemented number");
                 }
             }
-
-            Value::Bool(_) => {
-                for entry in array {
-                    if let Value::Bool(ref b) = *entry {
-                        output.push(MpvDataType::Bool(*b));
-                    }
-                }
-            }
-
-            Value::Number(_) => {
-                for entry in array {
-                    if let Value::Number(ref n) = *entry {
-                        if n.is_u64() {
-                            output.push(MpvDataType::Usize(n.as_u64().unwrap() as usize));
-                        } else if n.is_f64() {
-                            output.push(MpvDataType::Double(n.as_f64().unwrap()));
-                        } else {
-                            panic!("unimplemented number");
-                        }
-                    }
-                }
-            }
-
-            Value::Object(_) => {
-                for entry in array {
-                    if let Value::Object(ref map) = *entry {
-                        output.push(MpvDataType::HashMap(json_map_to_hashmap(map)));
-                    }
-                }
-            }
-
-            Value::String(_) => {
-                for entry in array {
-                    if let Value::String(ref s) = *entry {
-                        output.push(MpvDataType::String(s.to_string()));
-                    }
-                }
-            }
-
+            Value::Object(o) => MpvDataType::HashMap(json_map_to_hashmap(&o)),
+            Value::String(s) => MpvDataType::String(s.to_owned()),
             Value::Null => {
                 unimplemented!();
             }
-        }
-    }
-    output
+        })
+        .collect()
 }
 
 pub(crate) fn json_array_to_playlist(array: &[Value]) -> Vec<PlaylistEntry> {
@@ -217,3 +183,137 @@ pub(crate) fn json_array_to_playlist(array: &[Value]) -> Vec<PlaylistEntry> {
     }
     output
 }
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use crate::MpvDataType;
+    use serde_json::json;
+    use std::collections::HashMap;
+
+    #[test]
+    fn test_json_map_to_hashmap() {
+        let json = json!({
+            "array": [1, 2, 3],
+            "bool": true,
+            "double": 1.0,
+            "usize": 1,
+            "string": "string",
+            "object": {
+                "key": "value"
+            }
+        });
+
+        let mut expected = HashMap::new();
+        expected.insert(
+            "array".to_string(),
+            MpvDataType::Array(vec![
+                MpvDataType::Usize(1),
+                MpvDataType::Usize(2),
+                MpvDataType::Usize(3),
+            ]),
+        );
+        expected.insert("bool".to_string(), MpvDataType::Bool(true));
+        expected.insert("double".to_string(), MpvDataType::Double(1.0));
+        expected.insert("usize".to_string(), MpvDataType::Usize(1));
+        expected.insert(
+            "string".to_string(),
+            MpvDataType::String("string".to_string()),
+        );
+        expected.insert(
+            "object".to_string(),
+            MpvDataType::HashMap(HashMap::from([(
+                "key".to_string(),
+                MpvDataType::String("value".to_string()),
+            )])),
+        );
+
+        assert_eq!(json_map_to_hashmap(json.as_object().unwrap()), expected);
+    }
+
+    #[test]
+    #[should_panic]
+    fn test_json_map_to_hashmap_fail_on_null() {
+        json_map_to_hashmap(
+            json!({
+                "null": null
+            })
+            .as_object()
+            .unwrap(),
+        );
+    }
+
+    #[test]
+    fn test_json_array_to_vec() {
+        let json = json!([
+            [1, 2, 3],
+            true,
+            1.0,
+            1,
+            "string",
+            {
+                "key": "value"
+            }
+        ]);
+
+        println!("{:?}", json.as_array().unwrap());
+        println!("{:?}", json_array_to_vec(json.as_array().unwrap()));
+
+        let expected = vec![
+            MpvDataType::Array(vec![
+                MpvDataType::Usize(1),
+                MpvDataType::Usize(2),
+                MpvDataType::Usize(3),
+            ]),
+            MpvDataType::Bool(true),
+            MpvDataType::Double(1.0),
+            MpvDataType::Usize(1),
+            MpvDataType::String("string".to_string()),
+            MpvDataType::HashMap(HashMap::from([(
+                "key".to_string(),
+                MpvDataType::String("value".to_string()),
+            )])),
+        ];
+
+        assert_eq!(json_array_to_vec(json.as_array().unwrap()), expected);
+    }
+
+    #[test]
+    #[should_panic]
+    fn test_json_array_to_vec_fail_on_null() {
+        json_array_to_vec(json!([null]).as_array().unwrap().as_slice());
+    }
+
+    #[test]
+    fn test_json_array_to_playlist() {
+        let json = json!([
+            {
+                "filename": "file1",
+                "title": "title1",
+                "current": true
+            },
+            {
+                "filename": "file2",
+                "title": "title2",
+                "current": false
+            }
+        ]);
+
+        let expected = vec![
+            PlaylistEntry {
+                id: 0,
+                filename: "file1".to_string(),
+                title: "title1".to_string(),
+                current: true,
+            },
+            PlaylistEntry {
+                id: 1,
+                filename: "file2".to_string(),
+                title: "title2".to_string(),
+                current: false,
+            },
+        ];
+
+        assert_eq!(json_array_to_playlist(json.as_array().unwrap()), expected);
+    }
+}

tests/integration.rs

@@ -0,0 +1,61 @@
+use mpvipc::{Error, Mpv, MpvExt};
+use std::path::Path;
+use tokio::{
+    process::{Child, Command},
+    time::{sleep, timeout, Duration},
+};
+
+#[cfg(target_family = "unix")]
+async fn spawn_headless_mpv() -> Result<(Child, Mpv), Error> {
+    let socket_path_str = format!("/tmp/mpv-ipc-{}", uuid::Uuid::new_v4());
+    let socket_path = Path::new(&socket_path_str);
+
+    let process_handle = Command::new("mpv")
+        .arg("--no-config")
+        .arg("--idle")
+        .arg("--no-video")
+        .arg("--no-audio")
+        .arg(format!(
+            "--input-ipc-server={}",
+            &socket_path.to_str().unwrap()
+        ))
+        .spawn()
+        .expect("Failed to start mpv");
+
+    if timeout(Duration::from_millis(500), async {
+        while !&socket_path.exists() {
+            sleep(Duration::from_millis(10)).await;
+        }
+    })
+    .await
+    .is_err()
+    {
+        panic!("Failed to create mpv socket at {:?}", &socket_path);
+    }
+
+    let mpv = Mpv::connect(socket_path.to_str().unwrap()).await.unwrap();
+    Ok((process_handle, mpv))
+}
+
+#[tokio::test]
+#[cfg(target_family = "unix")]
+async fn test_get_mpv_version() {
+    let (mut proc, mpv) = spawn_headless_mpv().await.unwrap();
+    let version: String = mpv.get_property("mpv-version").await.unwrap();
+    assert!(version.starts_with("mpv"));
+
+    mpv.kill().await.unwrap();
+    proc.kill().await.unwrap();
+}
+
+#[tokio::test]
+#[cfg(target_family = "unix")]
+async fn test_set_property() {
+    let (mut proc, mpv) = spawn_headless_mpv().await.unwrap();
+    mpv.set_property("pause", true).await.unwrap();
+    let paused: bool = mpv.get_property("pause").await.unwrap();
+    assert!(paused);
+
+    mpv.kill().await.unwrap();
+    proc.kill().await.unwrap();
+}