2 files changed, 202 insertions, 0 deletions
diff --git a/budget/tests/budget.rs b/budget/tests/budget.rs
new file mode 100644
index 0000000..32828f8
--- /dev/null
+++ b/budget/tests/budget.rs
@@ -0,0 +1,149 @@
+use std::collections::HashMap;
+
+use chrono::prelude::*;
+
+use budget::*;
+
+#[test]
+fn can_parse_account() -> Result<(), ParseError>{
+    let should_be = Account {
+        start_date: NaiveDate::from_ymd(2020, 10, 1),
+        end_date: NaiveDate::from_ymd(2020, 10, 31),
+        budget: 420.0,
+        essential_categories: vec![
+            String::from("products"),
+            String::from("transport"),
+            String::from("utilities"),
+        ],
+        days: vec![
+            Day {
+                date: NaiveDate::from_ymd(2020, 10, 1),
+                expenses: vec![
+                    Expense {
+                        name: String::from("Potato masher"),
+                        price: 3.81,
+                        qty: 1,
+                        shared: 1,
+                        recurring: false,
+                        category: Some(String::from("supplies")),
+                    },
+                    Expense {
+                        name: String::from("Bacon"),
+                        price: 3.33,
+                        qty: 1,
+                        shared: 2,
+                        recurring: false,
+                        category: Some(String::from("products")),
+                    },
+                    Expense {
+                        name: String::from("Yoghurt"),
+                        price: 1.24,
+                        qty: 2,
+                        shared: 1,
+                        recurring: false,
+                        category: Some(String::from("products")),
+                    },
+                    Expense {
+                        name: String::from("Onion"),
+                        price: 0.15,
+                        qty: 1,
+                        shared: 1,
+                        recurring: false,
+                        category: Some(String::from("products")),
+                    },
+                    Expense {
+                        name: String::from("Chicken"),
+                        price: 2.28,
+                        qty: 1,
+                        shared: 2,
+                        recurring: false,
+                        category: Some(String::from("products")),
+                    },
+                ],
+            },
+            Day {
+                date: NaiveDate::from_ymd(2020, 10, 2),
+                expenses: vec![
+                    Expense {
+                        name: String::from("VPS"),
+                        price: 5.0,
+                        qty: 1,
+                        shared: 1,
+                        recurring: true,
+                        category: Some(String::from("utilities")),
+                    },
+                    Expense {
+                        name: String::from("Transport card"),
+                        price: 6.9,
+                        qty: 1,
+                        shared: 1,
+                        recurring: false,
+                        category: Some(String::from("transport")),
+                    },
+                ],
+            },
+        ],
+    };
+
+    let actually_is = budget::parse_account("tests/test.toml")?;
+
+    assert_eq!(actually_is, should_be);
+
+    Ok(())
+}
+
+#[test]
+fn can_calculate() -> Result<(), ParseError> {
+    let mut should_be = Calculated {
+        all_day_average: 11.355,
+        essential_day_average: 9.45,
+        categories_day_average: HashMap::<String, f64>::new(),
+        essential_subtotal: 18.9,
+        categories_subtotal: HashMap::<String, f64>::new(),
+        total: 22.71,
+        balance: 397.29,
+        days_left: 34.9881109643329,
+        days_left_essential: 42.041269841269845,
+    };
+
+    should_be.categories_day_average.insert(
+        "supplies".to_string(),
+        1.905,
+    );
+    should_be.categories_day_average.insert(
+        "products".to_string(),
+        3.5,
+    );
+    should_be.categories_day_average.insert(
+        "transport".to_string(),
+        3.45,
+    );
+    should_be.categories_day_average.insert(
+        "utilities".to_string(),
+        2.5,
+    );
+
+    should_be.categories_subtotal.insert(
+        "supplies".to_string(),
+        3.81,
+    );
+    should_be.categories_subtotal.insert(
+        "products".to_string(),
+        7.0,
+    );
+    should_be.categories_subtotal.insert(
+        "transport".to_string(),
+        6.9,
+    );
+    should_be.categories_subtotal.insert(
+        "utilities".to_string(),
+        5.0,
+    );
+
+    let account = budget::parse_account("tests/test.toml")?;
+    let actually_is = budget::calculate(&account);
+
+    assert_eq!(actually_is, should_be);
+
+    Ok(())
+}
diff --git a/budget/tests/test.toml b/budget/tests/test.toml
new file mode 100644
index 0000000..7dd5774
--- /dev/null
+++ b/budget/tests/test.toml
@@ -0,0 +1,53 @@
+start_date = 2020-10-01
+end_date = 2020-10-31
+budget = 420.0
+essential_categories = [
+  "products",
+  "transport",
+  "utilities",
+]
+
+[[days]]
+date = 2020-10-01
+
+  [[days.expenses]]
+  name = "Potato masher"
+  price = 3.81
+  category = "supplies"
+
+  [[days.expenses]]
+  name = "Bacon"
+  price = 3.33
+  category = "products"
+  shared = 2
+
+  [[days.expenses]]
+  name = "Yoghurt"
+  price = 1.24
+  category = "products"
+  qty = 2
+
+  [[days.expenses]]
+  name = "Onion"
+  price = 0.15
+  category = "products"
+
+  [[days.expenses]]
+  name = "Chicken"
+  price = 2.28
+  category = "products"
+  shared = 2
+
+[[days]]
+date = 2020-10-02
+
+  [[days.expenses]]
+  name = "VPS"
+  price = 5.0
+  category = "utilities"
+  recurring = true
+
+  [[days.expenses]]
+  name = "Transport card"
+  price = 6.9
+  category = "transport"