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|
use git::{Config, ErrorCode};
use crate::{utils::get_optional_string, ConfigError, ConfigErrorCause};
pub(crate) fn get_unsigned_integer(config: Option<&Config>, name: &str, default: u32) -> Result<u32, ConfigError> {
if let Some(cfg) = config {
match cfg.get_i32(name) {
Ok(v) => {
v.try_into().map_err(|_| {
ConfigError::new_with_optional_input(
name,
get_optional_string(config, name).ok().flatten(),
ConfigErrorCause::InvalidUnsignedInteger,
)
})
},
Err(e) if e.code() == ErrorCode::NotFound => Ok(default),
Err(e) if e.message().contains("failed to parse") => {
Err(ConfigError::new_with_optional_input(
name,
get_optional_string(config, name).ok().flatten(),
ConfigErrorCause::InvalidUnsignedInteger,
))
},
Err(e) => {
Err(ConfigError::new_with_optional_input(
name,
get_optional_string(config, name).ok().flatten(),
ConfigErrorCause::UnknownError(String::from(e.message())),
))
},
}
}
else {
Ok(default)
}
}
#[cfg(test)]
mod tests {
use claims::assert_ok_eq;
use testutils::assert_err_eq;
use super::*;
use crate::testutils::{invalid_utf, with_git_config};
#[test]
fn read_value() {
with_git_config(&["[test]", "value = 42"], |git_config| {
assert_ok_eq!(get_unsigned_integer(Some(&git_config), "test.value", 24), 42);
});
}
#[test]
fn read_value_min() {
with_git_config(&["[test]", "value = 0"], |git_config| {
assert_ok_eq!(get_unsigned_integer(Some(&git_config), "test.value", 24), 0);
});
}
#[test]
#[allow(clippy::as_conversions)]
fn read_value_max() {
with_git_config(&["[test]", format!("value = {}", i32::MAX).as_str()], |git_config| {
assert_ok_eq!(
get_unsigned_integer(Some(&git_config), "test.value", 24),
i32::MAX as u32 // git only supports i32s, so use i32 max
);
});
}
#[test]
fn read_value_too_small() {
with_git_config(&["[test]", "value = -1"], |git_config| {
assert_err_eq!(
get_unsigned_integer(Some(&git_config), "test.value", 24),
ConfigError::new("test.value", "-1", ConfigErrorCause::InvalidUnsignedInteger)
);
});
}
#[test]
fn read_value_too_small_i32() {
with_git_config(&["[test]", format!("value = {}", i64::MIN).as_str()], |git_config| {
assert_err_eq!(
get_unsigned_integer(Some(&git_config), "test.value", 24),
ConfigError::new(
"test.value",
i64::MIN.to_string().as_str(),
ConfigErrorCause::InvalidUnsignedInteger
)
);
});
}
#[test]
fn read_value_too_large() {
with_git_config(&["[test]", format!("value = {}", u64::MAX).as_str()], |git_config| {
assert_err_eq!(
get_unsigned_integer(Some(&git_config), "test.value", 24),
ConfigError::new(
"test.value",
u64::MAX.to_string().as_str(),
ConfigErrorCause::InvalidUnsignedInteger
)
);
});
}
#[test]
fn read_default() {
with_git_config(&[], |git_config| {
assert_ok_eq!(get_unsigned_integer(Some(&git_config), "test.value", 24), 24);
});
}
#[test]
fn read_invalid() {
with_git_config(&["[test]", "value = invalid"], |git_config| {
assert_err_eq!(
get_unsigned_integer(Some(&git_config), "test.value", 24),
ConfigError::new("test.value", "invalid", ConfigErrorCause::InvalidUnsignedInteger)
);
});
}
#[test]
fn read_unexpected_error() {
with_git_config(&["[test]", "value = invalid"], |git_config| {
assert_err_eq!(
get_unsigned_integer(Some(&git_config), "test", 24),
ConfigError::new_read_error(
"test",
ConfigErrorCause::UnknownError(String::from("invalid config item name 'test'"))
)
);
});
}
#[test]
fn read_invalid_non_utf() {
with_git_config(
&["[test]", format!("value = {}", invalid_utf()).as_str()],
|git_config| {
assert_err_eq!(
get_unsigned_integer(Some(&git_config), "test.value", 24),
ConfigError::new_read_error("test.value", ConfigErrorCause::InvalidUnsignedInteger)
);
},
);
}
}
|
