view/filters: add tests

Signed-off-by: Manos Pitsidianakis <manos@pitsidianak.is>

meli/src/mail/view.rs

@@ -52,6 +52,9 @@ pub use envelope::EnvelopeView;
 pub mod filters;
 pub use filters::*;
 
+#[cfg(test)]
+mod tests;
+
 /// Contains an Envelope view, with sticky headers, a pager for the body, and
 /// subviews for more menus
 #[derive(Debug)]

meli/src/mail/view/tests.rs

@@ -0,0 +1,94 @@
+/*
+ * meli
+ *
+ * Copyright 2023 Manos Pitsidianakis
+ *
+ * This file is part of meli.
+ *
+ * meli is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * meli is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with meli. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+use super::types::ViewFilter;
+use crate::melib::{Attachment, AttachmentBuilder};
+use crate::Context;
+
+#[test]
+fn test_view_filter_text_plain() {
+    let bytes = b"";
+    let tempdir = tempfile::tempdir().unwrap();
+    let mut ctx = Context::new_mock(&tempdir);
+    let att: Attachment = AttachmentBuilder::new(bytes).build();
+    let value = ViewFilter::new_attachment(&att, &mut ctx).unwrap();
+    assert_eq!(&value.content_type.to_string(), "text/plain");
+}
+
+#[test]
+fn test_view_filter_text_html() {
+    let bytes = b"";
+    let tempdir = tempfile::tempdir().unwrap();
+    let mut ctx = Context::new_mock(&tempdir);
+    let att: Attachment = AttachmentBuilder::new(bytes).build();
+    let value = ViewFilter::new_attachment(&att, &mut ctx).unwrap();
+    assert_eq!(&value.content_type.to_string(), "text/html");
+}
+
+#[test]
+fn test_view_filter_multipart_alternative_plain_and_html() {
+    let bytes = b"";
+    let tempdir = tempfile::tempdir().unwrap();
+    let mut ctx = Context::new_mock(&tempdir);
+    let att: Attachment = AttachmentBuilder::new(bytes).build();
+    let value = ViewFilter::new_attachment(&att, &mut ctx).unwrap();
+    assert_eq!(&value.content_type.to_string(), "text/plain");
+}
+
+#[test]
+fn test_view_filter_multipart_alternative_empty_plain_and_html() {
+    let bytes = b"";
+    let tempdir = tempfile::tempdir().unwrap();
+    let mut ctx = Context::new_mock(&tempdir);
+    let att: Attachment = AttachmentBuilder::new(bytes).build();
+    let value = ViewFilter::new_attachment(&att, &mut ctx).unwrap();
+    assert_eq!(&value.content_type.to_string(), "text/html");
+}
+
+#[test]
+fn test_view_filter_multipart_digest() {
+    let bytes = b"";
+    let tempdir = tempfile::tempdir().unwrap();
+    let mut ctx = Context::new_mock(&tempdir);
+    let att: Attachment = AttachmentBuilder::new(bytes).build();
+    let value = ViewFilter::new_attachment(&att, &mut ctx).unwrap();
+    assert_eq!(&value.content_type.to_string(), "multipart/digest");
+}
+
+#[test]
+fn test_view_filter_multipart_mixed() {
+    let bytes = b"";
+    let tempdir = tempfile::tempdir().unwrap();
+    let mut ctx = Context::new_mock(&tempdir);
+    let att: Attachment = AttachmentBuilder::new(bytes).build();
+    let value = ViewFilter::new_attachment(&att, &mut ctx).unwrap();
+    assert_eq!(&value.content_type.to_string(), "multipart/mixed");
+}
+
+#[test]
+fn test_view_filter_multipart_related() {
+    let bytes = b"";
+    let tempdir = tempfile::tempdir().unwrap();
+    let mut ctx = Context::new_mock(&tempdir);
+    let att: Attachment = AttachmentBuilder::new(bytes).build();
+    let value = ViewFilter::new_attachment(&att, &mut ctx).unwrap();
+    assert_eq!(&value.content_type.to_string(), "text/related");
+}