add tests for rendering the index pages

src/handlers/mod.rs

@@ -51,3 +51,13 @@ impl IntoResponse for WebsiteError {
         }
     }
 }
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn render_index() {
+        let tera = tera::Tera::new("templates/**/*").unwrap();
+        let ctx = tera::Context::new();
+        let _res = tera.render("index.html", &ctx).unwrap();
+    }
+}

src/handlers/posts.rs

@@ -74,3 +74,39 @@ pub async fn view(
         .inc();
     Ok(Html(res))
 }
+
+#[cfg(test)]
+mod tests {
+    use chrono::DateTime;
+
+    use crate::post::Post;
+
+    use super::IndexContext;
+
+    #[test]
+    fn render_index() {
+        let posts = vec![Post {
+            title: "test".into(),
+            slug: "test".into(),
+            date: Some(DateTime::parse_from_rfc3339("2023-03-26T13:04:01+02:00").unwrap()),
+            ..Default::default()
+        },
+        Post {
+            title: "test2".into(),
+            slug: "test2".into(),
+            date: None,
+            ..Default::default()
+        }];
+        let ctx = IndexContext {
+            title: "Posts",
+            posts: posts.iter().collect(),
+        };
+        let tera = tera::Tera::new("templates/**/*").unwrap();
+        let _res = tera
+            .render(
+                "posts_index.html",
+                &tera::Context::from_serialize(ctx).unwrap(),
+            )
+            .unwrap();
+    }
+}

src/main.rs

@@ -1,7 +1,7 @@
 use std::{collections::HashMap, sync::Arc};
 
 use axum::{body, response::Response, routing::get, Extension, Router};
-use color_eyre::eyre::{Result, Error};
+use color_eyre::eyre::{Error, Result};
 use hyper::header::CONTENT_TYPE;
 use post::Post;
 use prometheus::{Encoder, TextEncoder};

src/post.rs

@@ -22,7 +22,7 @@ pub struct TomlFrontMatter {
     pub tags: Option<Vec<String>>,
 }
 
-#[derive(Serialize, Clone, Debug)]
+#[derive(Serialize, Clone, Debug, Default)]
 pub struct Post {
     pub title: String,
     pub date: Option<DateTime<FixedOffset>>,