use twilight_model::channel::embed::EmbedField;
#[derive(Clone, Debug, Eq, PartialEq)]
#[must_use = "must be built into an embed field"]
pub struct EmbedFieldBuilder(EmbedField);
impl EmbedFieldBuilder {
pub fn new(name: impl Into<String>, value: impl Into<String>) -> Self {
Self::_new(name.into(), value.into())
}
const fn _new(name: String, value: String) -> Self {
Self(EmbedField {
inline: false,
name,
value,
})
}
#[allow(clippy::missing_const_for_fn)]
#[must_use = "should be used as part of an embed builder"]
pub fn build(self) -> EmbedField {
self.0
}
pub const fn inline(mut self) -> Self {
self.0.inline = true;
self
}
}
impl From<EmbedFieldBuilder> for EmbedField {
fn from(builder: EmbedFieldBuilder) -> Self {
builder.build()
}
}
#[cfg(test)]
mod tests {
use super::EmbedFieldBuilder;
use crate::{EmbedBuilder, EmbedErrorType};
use static_assertions::assert_impl_all;
use std::fmt::Debug;
use twilight_model::channel::embed::EmbedField;
assert_impl_all!(EmbedFieldBuilder: Clone, Debug, Eq, PartialEq, Send, Sync);
assert_impl_all!(EmbedField: From<EmbedFieldBuilder>);
#[test]
fn new_errors() {
assert!(matches!(
EmbedBuilder::new().field(EmbedFieldBuilder::new("", "a")).build().unwrap_err().kind(),
EmbedErrorType::FieldNameEmpty { name, value }
if name.is_empty() && value.len() == 1
));
assert!(matches!(
EmbedBuilder::new().field(EmbedFieldBuilder::new("a".repeat(257), "a")).build().unwrap_err().kind(),
EmbedErrorType::FieldNameTooLong { name, value }
if name.len() == 257 && value.len() == 1
));
assert!(matches!(
EmbedBuilder::new().field(EmbedFieldBuilder::new("a", "")).build().unwrap_err().kind(),
EmbedErrorType::FieldValueEmpty { name, value }
if name.len() == 1 && value.is_empty()
));
assert!(matches!(
EmbedBuilder::new().field(EmbedFieldBuilder::new("a", "a".repeat(1025))).build().unwrap_err().kind(),
EmbedErrorType::FieldValueTooLong { name, value }
if name.len() == 1 && value.len() == 1025
));
}
#[test]
fn builder_inline() {
let expected = EmbedField {
inline: true,
name: "name".to_owned(),
value: "value".to_owned(),
};
let actual = EmbedFieldBuilder::new("name", "value").inline().build();
assert_eq!(actual, expected);
}
#[test]
fn builder_no_inline() {
let expected = EmbedField {
inline: false,
name: "name".to_owned(),
value: "value".to_owned(),
};
let actual = EmbedFieldBuilder::new("name", "value").build();
assert_eq!(actual, expected);
}
}