stubr 0.6.2

Wiremock implemented in Rust
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41

use std::ops::Not;

use handlebars::{Context, Handlebars, Helper, HelperDef, RenderContext, RenderError, ScopedJson};
use serde_json::Value;

use super::ValueExt;

pub struct NumberHelper;

impl NumberHelper {
    pub const IS_ODD: &'static str = "isOdd";
    pub const IS_EVEN: &'static str = "isEven";
    pub const STRIPES: &'static str = "stripes";

    fn value(h: &Helper) -> Option<i64> {
        h.params().get(0)?.value().as_i64()
    }

    fn stripes_value<'a>(h: &'a Helper, is_odd: bool) -> Option<&'a str> {
        let index = if is_odd { 2 } else { 1 };
        h.params().get(index)?.relative_path().map(String::escape_single_quotes)
    }
}

impl HelperDef for NumberHelper {
    fn call_inner<'reg: 'rc, 'rc>(
        &self, h: &Helper<'reg, 'rc>, _: &'reg Handlebars<'reg>, _: &'rc Context, _: &mut RenderContext<'reg, 'rc>,
    ) -> Result<ScopedJson<'reg, 'rc>, RenderError> {
        Self::value(h)
            .map(|n| n % 2 == 1)
            .and_then(|is_odd| match h.name() {
                Self::STRIPES => Self::stripes_value(h, is_odd).map(str::to_string),
                Self::IS_ODD => Some(is_odd.to_string()),
                Self::IS_EVEN => Some(is_odd.not().to_string()),
                _ => panic!("Unexpected error"),
            })
            .map(Value::from)
            .map(ScopedJson::from)
            .ok_or_else(|| RenderError::new("Invalid stripes defined in template"))
    }
}