Implement MVP test

Cargo.toml

@@ -6,3 +6,7 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+anyhow = "1.0.71"
+openai_rs = { path = "./OpenAI-Rust" }
+tiktoken = { path = "./tiktoken" }
+tokio = { version = "1.28.2", features = ["full"] }

src/main.rs

@@ -1,3 +1,33 @@
-fn main() {
-    println!("Hello, world!");
+use openai_rs::{chat::{ChatHistoryBuilder, ChatMessage, Role}, context::Context};
+
+#[tokio::main]
+async fn main() {
+    println!("Getting API key");
+    let ctx = get_api().unwrap();
+
+    println!("Generating completion...");
+    let completion = ctx
+        .create_chat_completion_sync(
+            ChatHistoryBuilder::default()
+                .messages(vec![ChatMessage::new(Role::User, "Who are you?")])
+                .model("gpt-4"),
+        )
+        .await;
+    assert!(
+        completion.is_ok(),
+        "Could not create completion: {}",
+        completion.unwrap_err()
+    );
+
+    let result = completion.unwrap();
+    assert!(result.choices.len() == 1, "No completion found");
+    println!("Got completion: {:?}", result.choices[0].message);
+}
+
+fn get_api() -> anyhow::Result<Context> {
+    Ok(Context::new(
+        std::fs::read_to_string(std::path::Path::new("apikey.txt"))?
+            .trim()
+            .to_string(),
+    ))
 }