unittest load save storage

.gitignore

@@ -1 +1,2 @@
 **/*.sw*
+/target/

Cargo.lock

@@ -0,0 +1,119 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "equivalent"
+version = "1.0.1"
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+ "equivalent",
+ "hashbrown",
+]
+
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+ "proc-macro2",
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+ "serde_derive",
+]
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+ "proc-macro2",
+ "quote",
+ "syn",
+]
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+name = "serde_yaml"
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+dependencies = [
+ "indexmap",
+ "itoa",
+ "ryu",
+ "serde",
+ "unsafe-libyaml",
+]
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+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "tsheet-cli"
+version = "0.1.0"
+dependencies = [
+ "serde",
+ "serde_yaml",
+]
+
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Cargo.toml

@@ -6,3 +6,5 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+serde = { version = "1.0.193", features = ["derive"] }
+serde_yaml = "0.9.27"

src/main.rs

@@ -1,3 +1,79 @@
+use serde::{Serialize, Deserialize};
+use std::io::{Read, Write};
+use std::fs::File;
+
 fn main() {
     println!("Hello, world!");
 }
+
+#[derive(Debug, PartialEq, Serialize, Deserialize)]
+struct Storage {
+   adds: Vec<Add>,
+}
+
+#[derive(Debug, PartialEq, Serialize, Deserialize)]
+struct Add {
+   t: i64,
+   add: String,
+   tag: String,
+}
+
+fn save_storage(path: String, storage: Storage) -> Result<(), String> {
+   match File::create(path.clone()) {
+      Ok(mut writer) => _save_storage(&mut writer, storage),
+      Err(reason) => Err(format!("failed to open {} to save storage: {}", path, reason)),
+   }
+}
+
+fn _save_storage(writer: &mut dyn Write, storage: Storage) -> Result<(), String> {
+   let mut w = serde_yaml::Serializer::new(writer);
+   match storage.serialize(&mut w) {
+      Ok(_) => Ok(()),
+      Err(reason) => Err(format!("failed to serialize storage: {}", reason)),
+   }
+}
+
+fn load_storage(path: String) -> Result<Storage, String> {
+   match File::open(path.clone()) {
+      Ok(mut reader) => _load_storage(&mut reader),
+      Err(reason) => Err(format!("failed to read storage {}: {}", path, reason)),
+   }
+}
+
+fn _load_storage(reader: &mut dyn Read) -> Result<Storage, String> {
+   match serde_yaml::from_reader::<&mut dyn Read, Storage>(reader) {
+      Ok(storage) => Ok(storage),
+      Err(err) => Err(format!("failed to parse storage: {}", err)),
+   }
+}
+
+#[cfg(test)]
+mod tests {
+   use super::*;
+
+   #[test]
+   fn test_save_load_empty() {
+      let got = _load_storage(&mut "adds: []".as_bytes()).expect("failed to parse 'adds: []' storage");
+      assert_eq!(got, Storage{adds: vec![]});
+
+      let mut w = vec![];
+      _save_storage(&mut w, got).expect("failed saving storage to writer");
+      assert_eq!(String::from_utf8(w).unwrap(), "adds: []\n".to_string());
+   }
+
+   #[test]
+   fn test_testdata_standalone_yaml() {
+      let want = Storage{adds: vec![
+         Add{t: 1, add: "def".to_string(), tag: "abc".to_string()},
+         Add{t: 2, add: "ghi".to_string(), tag: "".to_string()},
+      ]};
+      assert_eq!(
+         load_storage("./src/testdata/standalone.yaml".to_string()).expect("cant load standalone.yaml"),
+         want,
+      );
+
+      let mut w = vec![];
+      _save_storage(&mut w, want).expect("failed saving storage to writer");
+      assert_eq!(String::from_utf8(w).unwrap(), "adds:\n- t: 1\n  add: def\n  tag: abc\n- t: 2\n  add: ghi\n  tag: ''\n".to_string());
+   }
+}

src/testdata/cmdline.txt

@@ -0,0 +1,3 @@
+$ tsheet-cli -clock-in   # adds "" for the timestamp
+$ tsheet-cli -add def -tag abc   # adds def with tag abc using same-day for duration OR 1h
+$ tsheet-cli -log -since YYYY-MM-DD   # prints standalone.txt inclusive since given time

src/testdata/standalone.txt

@@ -0,0 +1,9 @@
+- t: 1969-12-31
+  d:
+  adds:
+  - d: 1
+    add: abc
+    adds:
+    - def
+  - d: 0
+    add: ghi

src/testdata/standalone.yaml

@@ -0,0 +1,7 @@
+adds:
+- t: 1
+  add: def
+  tag: abc
+- t: 2
+  add: ghi
+  tag: ""