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// Copyright 2019 TiKV Project Authors. Licensed under Apache-2.0.
use prometheus::{IntCounter, IntCounterVec, IntGauge, IntGaugeVec};
use lazy_static::lazy_static;
use prometheus::{
register_int_counter, register_int_counter_vec, register_int_gauge, register_int_gauge_vec,
};
lazy_static! {
static ref A_INT_COUNTER: IntCounter =
register_int_counter!("A_int_counter", "foobar").unwrap();
static ref A_INT_COUNTER_VEC: IntCounterVec =
register_int_counter_vec!("A_int_counter_vec", "foobar", &["a", "b"]).unwrap();
static ref A_INT_GAUGE: IntGauge = register_int_gauge!("A_int_gauge", "foobar").unwrap();
static ref A_INT_GAUGE_VEC: IntGaugeVec =
register_int_gauge_vec!("A_int_gauge_vec", "foobar", &["a", "b"]).unwrap();
}
fn main() {
A_INT_COUNTER.inc();
A_INT_COUNTER.inc_by(10);
assert_eq!(A_INT_COUNTER.get(), 11);
A_INT_COUNTER_VEC.with_label_values(&["a", "b"]).inc_by(5);
assert_eq!(A_INT_COUNTER_VEC.with_label_values(&["a", "b"]).get(), 5);
A_INT_COUNTER_VEC.with_label_values(&["c", "d"]).inc();
assert_eq!(A_INT_COUNTER_VEC.with_label_values(&["c", "d"]).get(), 1);
A_INT_GAUGE.set(5);
assert_eq!(A_INT_GAUGE.get(), 5);
A_INT_GAUGE.dec();
assert_eq!(A_INT_GAUGE.get(), 4);
A_INT_GAUGE.add(2);
assert_eq!(A_INT_GAUGE.get(), 6);
A_INT_GAUGE_VEC.with_label_values(&["a", "b"]).set(10);
A_INT_GAUGE_VEC.with_label_values(&["a", "b"]).dec();
A_INT_GAUGE_VEC.with_label_values(&["a", "b"]).sub(2);
assert_eq!(A_INT_GAUGE_VEC.with_label_values(&["a", "b"]).get(), 7);
}
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