chore: Add basic github actions PR checks

.github/workflows/pr.yaml

@@ -0,0 +1,37 @@
+name: Test PR
+
+on:
+  pull_request
+
+jobs:
+  test:
+    name: Run Tests
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Set up Rust
+      run: |
+        rustup update stable
+        rustup default stable
+        rustup component add rustfmt clippy
+
+    - name: Print Rust version
+      run: rustc --version
+
+    - name: Build
+      run: cargo build --verbose
+
+    - name: Unit test
+      run: cargo test --verbose
+
+    - name: E2E test
+      run: cargo test --features e2e-test --no-default-features
+
+    - name: Check formatting
+      run: cargo fmt -- --check
+
+    - name: Clippy
+      run: cargo clippy -- -D warnings

.gitignore

@@ -2,3 +2,4 @@
 *.iml
 .idea/
 Cargo.lock
+.env

Cargo.toml

@@ -15,3 +15,10 @@ serde = { version = "1.0.125", features = ["derive"] }
 chrono = {version = "0.4.19", features = ["serde"] }
 serde_json = "1.0.64"
 semver = "1.0.24"
+
+[dev-dependencies]
+dotenv = "0.15.0"
+ctor = "0.1.26"
+
+[features]
+e2e-test = []

src/lib.rs

@@ -1,11 +1,11 @@
 use chrono::NaiveDateTime;
 use reqwest::blocking::Client as HttpClient;
 use reqwest::header::CONTENT_TYPE;
+use semver::Version;
 use serde::Serialize;
 use std::collections::HashMap;
 use std::fmt::{Display, Formatter};
 use std::time::Duration;
-use semver::Version;
 
 extern crate serde_json;
 
@@ -173,19 +173,54 @@ impl Event {
     }
 }
 
+#[cfg(test)]
+mod test_setup {
+    use ctor::ctor;
+    use dotenv::dotenv;
+
+    #[ctor]
+    fn load_dotenv() {
+        dotenv().ok(); // Load the .env file
+        println!("Loaded .env for tests");
+    }
+}
+
 #[cfg(test)]
 pub mod tests {
     use super::*;
-    use chrono::Utc;
+
+    // see https://us.posthog.com/project/115809/ for the e2e project
 
+    #[test]
+    fn inner_event_adds_lib_properties_correctly() {
+        // Arrange
+        let mut event = Event::new("unit test event", "1234");
+        event.insert_prop("key1", "value1").unwrap();
+        let api_key = "test_api_key".to_string();
+
+        // Act
+        let inner_event = InnerEvent::new(event, api_key);
+
+        // Assert
+        let props = &inner_event.properties.props;
+        assert_eq!(
+            props.get("$lib_name"),
+            Some(&serde_json::Value::String("posthog-rs".to_string()))
+        );
+    }
+
+    #[cfg(feature = "e2e-test")]
     #[test]
     fn get_client() {
-        let client = crate::client(env!("POSTHOG_API_KEY"));
+        use std::collections::HashMap;
+
+        let api_key = std::env::var("POSTHOG_RS_E2E_TEST_API_KEY").unwrap();
+        let client = crate::client(api_key.as_str());
 
         let mut child_map = HashMap::new();
         child_map.insert("child_key1", "child_value1");
 
-        let mut event = Event::new("test", "1234");
+        let mut event = Event::new("e2e test event", "1234");
         event.insert_prop("key1", "value1").unwrap();
         event.insert_prop("key2", vec!["a", "b"]).unwrap();
         event.insert_prop("key3", child_map).unwrap();