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fix: handle non-finite msn key ratios

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Rasyidan Akbar F. 2026-04-13 23:34:36 +07:00
commit 19748d397e
9 changed files with 484 additions and 15 deletions
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84
src/api/msn/parse.rs
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@ -31,6 +31,10 @@ pub(crate) fn parse_fundamentals_from_str(
mod tests {
use super::{parse_fundamentals_from_str, parse_quote_from_str};
fn minimal_quote_raw() -> &'static str {
r#"[{"symbol":"BBCA","marketCap":1215200000000000}]"#
}
#[test]
fn parses_quote_fixture_json() {
let raw = std::fs::read_to_string("tests/fixtures/msn_quote_bbca.json")
@ -59,4 +63,84 @@ mod tests {
assert_eq!(fundamentals.earnings_growth, Some(0.121));
assert_eq!(fundamentals.market_cap, Some(1_215_200_000_000_000));
}
#[test]
fn parses_fundamentals_with_infinity_string_as_missing_data() {
let raw = r#"[
{
"companyMetrics": [
{
"year": "2025",
"fiscalPeriodType": "TTM",
"priceToEarningsRatio": "Infinity",
"priceToBookRatio": 4.6,
"roe": 19.8,
"profitMargin": 44.2,
"debtToEquityRatio": 0.75,
"currentRatio": 1.4
}
]
}
]"#;
let fundamentals = parse_fundamentals_from_str(raw, Some(minimal_quote_raw()))
.expect("fundamentals parsed");
assert_eq!(fundamentals.trailing_pe, None);
assert_eq!(fundamentals.price_to_book, Some(4.6));
assert_eq!(fundamentals.return_on_equity, Some(0.198));
}
#[test]
fn parses_fundamentals_with_negative_infinity_string_as_missing_data() {
let raw = r#"[
{
"companyMetrics": [
{
"year": "2025",
"fiscalPeriodType": "TTM",
"priceToEarningsRatio": 12.5,
"debtToEquityRatio": "-Infinity",
"roe": 19.8,
"profitMargin": 44.2,
"currentRatio": 1.4
}
]
}
]"#;
let fundamentals = parse_fundamentals_from_str(raw, Some(minimal_quote_raw()))
.expect("fundamentals parsed");
assert_eq!(fundamentals.trailing_pe, Some(12.5));
assert_eq!(fundamentals.debt_to_equity, None);
assert_eq!(fundamentals.return_on_equity, Some(0.198));
}
#[test]
fn parses_fundamentals_with_nan_string_as_missing_data() {
let raw = r#"[
{
"companyMetrics": [
{
"year": "2025",
"fiscalPeriodType": "TTM",
"revenueGrowthRate": "NaN",
"earningsGrowthRate": 12.1,
"roe": 19.8,
"profitMargin": 44.2,
"debtToEquityRatio": 0.75,
"currentRatio": 1.4
}
]
}
]"#;
let fundamentals = parse_fundamentals_from_str(raw, Some(minimal_quote_raw()))
.expect("fundamentals parsed");
assert_eq!(fundamentals.revenue_growth, None);
assert_eq!(fundamentals.earnings_growth, Some(0.121));
assert_eq!(fundamentals.return_on_equity, Some(0.198));
}
}