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Ensure polygon has at least 1 geographical point

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This commit is contained in:
Tobie Morgan Hitchcock 2021-05-17 17:40:17 +01:00
parent b196f16f68
commit 1324fed1b3
1 changed files with 9 additions and 6 deletions
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15
src/sql/polygon.rs
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@ -2,7 +2,7 @@ use crate::sql::comment::mightbespace;
use crate::sql::common::commas;
use crate::sql::point::{point, Point};
use nom::bytes::complete::tag;
use nom::multi::separated_list0;
use nom::multi::separated_list1;
use nom::IResult;
use serde::ser::SerializeStruct;
use serde::{Deserialize, Serialize};
@ -41,7 +41,7 @@ impl Serialize for Polygon {
pub fn polygon(i: &str) -> IResult<&str, Polygon> {
let (i, _) = tag("(")(i)?;
let (i, _) = mightbespace(i)?;
let (i, v) = separated_list0(commas, point)(i)?;
let (i, v) = separated_list1(commas, point)(i)?;
let (i, _) = mightbespace(i)?;
let (i, _) = tag(")")(i)?;
Ok((
@ -59,19 +59,22 @@ mod tests {
#[test]
fn polygon_simple() {
let sql = "( (0, 0), (0, 0) )";
let sql = "( (0, 0), (0, 0), (0, 0) )";
let res = polygon(sql);
assert!(res.is_ok());
let out = res.unwrap().1;
assert_eq!("( (0, 0), (0, 0) )", format!("{}", out));
assert_eq!("( (0, 0), (0, 0), (0, 0) )", format!("{}", out));
}
#[test]
fn polygon_complex() {
let sql = "( (51.509865, -0.118092), (51.509865, -0.118092) )";
let sql = "( (51.509865, -0.118092), (51.509865, -0.118092), (51.509865, -0.118092) )";
let res = polygon(sql);
assert!(res.is_ok());
let out = res.unwrap().1;
assert_eq!("( (51.509865, -0.118092), (51.509865, -0.118092) )", format!("{}", out));
assert_eq!(
"( (51.509865, -0.118092), (51.509865, -0.118092), (51.509865, -0.118092) )",
format!("{}", out)
);
}
}