124 lines
2.9 KiB
Rust
124 lines
2.9 KiB
Rust
#![cfg(test)]
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use crate::{Error, no_flash, Store, StoreBackend, WriteError};
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const SIZE: usize = 1024;
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pub struct TestBackend {
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data: [u8; SIZE],
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}
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impl TestBackend {
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pub fn new() -> Self {
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TestBackend {
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data: [!0; SIZE],
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}
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}
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}
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impl StoreBackend for TestBackend {
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type Data = [u8; SIZE];
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fn data(&self) -> &Self::Data {
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&self.data
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}
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type Error = ();
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fn erase(&mut self) -> Result<(), Self::Error> {
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for b in &mut self.data {
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*b = !0;
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}
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Ok(())
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}
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fn program(&mut self, offset: usize, payload: &[u8]) -> Result<(), Self::Error> {
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let end = offset + payload.len();
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if end > self.len() {
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return Err(());
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}
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self.data[offset..end].copy_from_slice(payload);
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Ok(())
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}
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}
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fn make_store() -> Store<TestBackend> {
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let backend = TestBackend::new();
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Store::new(backend)
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}
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#[test]
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fn empty_read_not_found() {
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let store = make_store();
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assert_eq!(store.read("foo").unwrap(), None)
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}
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#[test]
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fn write_read() {
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let mut store = make_store();
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store.write("foo", b"bar").unwrap();
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assert_eq!(store.read("foo").unwrap().unwrap(), b"bar");
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}
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#[test]
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fn write_read_value_str() {
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let mut store = make_store();
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store.write_value("foo", "bar").unwrap();
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assert_eq!(store.read_value("foo"), Ok(Some("bar")));
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}
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#[test]
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fn write_read_value_u32() {
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let mut store = make_store();
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store.write_value("foo", 42005u32).unwrap();
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assert_eq!(store.read_value("foo"), Ok(Some(42005u32)));
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}
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#[test]
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fn write_read_value_i64() {
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let mut store = make_store();
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store.write_value("foo", -99999999i64).unwrap();
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assert_eq!(store.read_value("foo"), Ok(Some(-99999999i64)));
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}
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#[test]
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fn write_read_value_f32() {
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let mut store = make_store();
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store.write_value("foo", 3.75e17f32).unwrap();
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assert_eq!(store.read_value("foo"), Ok(Some(3.75e17f32)));
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}
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#[test]
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fn write_read_value_f64() {
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let mut store = make_store();
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store.write_value("foo", -1.999e-13f64).unwrap();
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assert_eq!(store.read_value("foo"), Ok(Some(-1.999e-13f64)));
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}
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#[test]
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fn write_int_read_str() {
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let mut store = make_store();
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store.write_int("foo", 42).unwrap();
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assert_eq!(store.read_str("foo").unwrap().unwrap(), "42");
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}
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#[test]
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fn write_many() {
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let mut store = make_store();
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store.write("foo", b"do not compact away").unwrap();
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for _ in 0..10000 {
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store.write("bar", b"SPAM").unwrap();
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}
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assert_eq!(store.read("foo").unwrap().unwrap(), b"do not compact away");
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assert_eq!(store.read("bar").unwrap().unwrap(), b"SPAM");
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}
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#[test]
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fn no_flash() {
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let mut store = Store::new(no_flash::NoFlash);
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assert_eq!(store.read("foo").unwrap(), None);
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assert_eq!(
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store.write("foo", b"bar"),
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Err(Error::Write(WriteError::Backend(no_flash::NoFlashError)))
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);
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}
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