2 files changed, 60 insertions, 0 deletions
diff --git a/backend/core/tests/models/date_time_utc.rs b/backend/core/tests/models/date_time_utc.rs
new file mode 100644
index 0000000..1f86968
--- /dev/null
+++ b/backend/core/tests/models/date_time_utc.rs
@@ -0,0 +1,59 @@
+use anyhow::Result;
+use budgeting_app_core::models::date_time_utc::DateTimeUtc;
+use diesel::{sql_query, Connection, ExpressionMethods, QueryDsl, RunQueryDsl, Selectable, SelectableHelper, SqliteConnection};
+use diesel::prelude::{Insertable, Queryable};
+
+use crate::common::test_context::TestContext;
+
+diesel::table! {
+    date_time_utc_test (id) {
+        id -> Integer,
+        date_time_utc -> Text,
+    }
+}
+
+#[derive(Insertable, Queryable, Selectable, Clone)]
+#[diesel(table_name = date_time_utc_test)]
+pub struct DateTimeUtcTest {
+    pub id: i32,
+    pub date_time_utc: DateTimeUtc,
+}
+
+fn new_test_context() -> Result<TestContext> {
+    let test_context = TestContext::new();
+    let connection = &mut SqliteConnection::establish(&test_context.db_url)?;
+    let query = "CREATE TABLE date_time_utc_test(id INTEGER PRIMARY KEY, date_time_utc TEXT);";
+    sql_query(query).execute(connection)?;
+    Ok(test_context)
+}
+
+fn insert_date_time_utc(id: i32, date_time_utc: &DateTimeUtc, connection: &mut SqliteConnection) -> Result<usize> {
+    let model = DateTimeUtcTest {
+        id,
+        date_time_utc: date_time_utc.clone(),
+    };
+    let num_rows_inserted = diesel::insert_into(date_time_utc_test::dsl::date_time_utc_test)
+        .values(&[model])
+        .execute(connection)?;
+    Ok(num_rows_inserted)
+}
+
+fn get_date_time_utc(id: i32, connection: &mut SqliteConnection) -> Result<DateTimeUtcTest> {
+    let date_time_utc: Vec<DateTimeUtcTest> = date_time_utc_test::dsl::date_time_utc_test
+        .select(DateTimeUtcTest::as_select())
+        .filter(date_time_utc_test::id.eq(id))
+        .load(connection)?;
+    Ok(date_time_utc[0].clone())
+}
+
+#[test]
+fn when_insert_date_time_utc_and_select_then_returns_original_value() -> Result<()> {
+    let date_time_utc = DateTimeUtc::now();
+    let test_context = new_test_context()?;
+    let connection = &mut SqliteConnection::establish(&test_context.db_url)?;
+    let num_rows_inserted = insert_date_time_utc(0, &date_time_utc, connection)?;
+    assert_eq!(num_rows_inserted, 1);
+    let date_time_utc_returned = get_date_time_utc(0, connection)?;
+    assert_eq!(date_time_utc_returned.date_time_utc.to_date_str(), date_time_utc.to_date_str());
+    Ok(())
+}
diff --git a/backend/core/tests/models/mod.rs b/backend/core/tests/models/mod.rs
new file mode 100644
index 0000000..5837dcd
--- /dev/null
+++ b/backend/core/tests/models/mod.rs
@@ -0,0 +1 @@
+mod date_time_utc;