feat: add chat completion without streaming

tests/v1_client_test.rs

@@ -0,0 +1,52 @@
+use jrest::expect;
+use mistralai_client::v1::client::Client;
+
+#[test]
+fn test_client_new_with_none_params() {
+    let maybe_original_mistral_api_key = std::env::var("MISTRAL_API_KEY").ok();
+    std::env::set_var("MISTRAL_API_KEY", "test_api_key_from_env");
+
+    let client = Client::new(None, None, None, None);
+
+    expect!(client.api_key).to_be("test_api_key_from_env".to_string());
+    expect!(client.endpoint).to_be("https://api.mistral.ai/v1".to_string());
+    expect!(client.max_retries).to_be(5);
+    expect!(client.timeout).to_be(120);
+
+    match maybe_original_mistral_api_key {
+        Some(original_mistral_api_key) => {
+            std::env::set_var("MISTRAL_API_KEY", original_mistral_api_key)
+        }
+        None => std::env::remove_var("MISTRAL_API_KEY"),
+    }
+}
+
+#[test]
+fn test_client_new_with_all_params() {
+    let maybe_original_mistral_api_key = std::env::var("MISTRAL_API_KEY").ok();
+    std::env::set_var("MISTRAL_API_KEY", "test_api_key_from_env");
+
+    let api_key = Some("test_api_key_from_param".to_string());
+    let endpoint = Some("https://example.org".to_string());
+    let max_retries = Some(10);
+    let timeout = Some(20);
+
+    let client = Client::new(
+        api_key.clone(),
+        endpoint.clone(),
+        max_retries.clone(),
+        timeout.clone(),
+    );
+
+    expect!(client.api_key).to_be(api_key.unwrap());
+    expect!(client.endpoint).to_be(endpoint.unwrap());
+    expect!(client.max_retries).to_be(max_retries.unwrap());
+    expect!(client.timeout).to_be(timeout.unwrap());
+
+    match maybe_original_mistral_api_key {
+        Some(original_mistral_api_key) => {
+            std::env::set_var("MISTRAL_API_KEY", original_mistral_api_key)
+        }
+        None => std::env::remove_var("MISTRAL_API_KEY"),
+    }
+}