# Test Coverage for Metric Instruments
Tests are located in [mod.rs](mod.rs)
// TODO: Fill this correctly.
## Sync Instruments
| Test Type | Counter (Delta) | Counter (Cumulative) | UpDownCounter (Delta) | UpDownCounter (Cumulative) | Gauge (Delta) | Gauge (Cumulative) | Histogram (Delta) | Histogram (Cumulative) |
|----------------------------|-----------------|----------------------|----------------------|----------------------------|---------------|--------------------|-------------------|------------------------|
| Regular aggregation test | :white_check_mark: | :white_check_mark: | :x: | :x: | :x: | :x: | :x: | :x: |
| No-attribute test | :white_check_mark: | :white_check_mark: | :x: | :x: | :x: | :x: | :x: | :x: |
| Overflow test | :white_check_mark: | :white_check_mark: | :x: | :x: | :x: | :x: | :x: | :x: |
| Attr Order Sorted First | :white_check_mark: | :white_check_mark: | :x: | :x: | :x: | :x: | :x: | :x: |
| Attr Order Unsorted First | :white_check_mark: | :white_check_mark: | :x: | :x: | :x: | :x: | :x: | :x: |
## Observable Instruments
| Test Type | ObservableCounter (Delta) | ObservableCounter (Cumulative) | ObservableGauge (Delta) | ObservableGauge (Cumulative) | ObservableUpDownCounter (Delta) | ObservableUpDownCounter (Cumulative) |
|----------------------------|---------------------------|-------------------------------|-------------------------|------------------------------|---------------------------------|--------------------------------------|
| Regular aggregation test | :x: | :x: | :x: | :x: | :x: | :x: |
| No-attribute test | :x: | :x: | :x: | :x: | :x: | :x: |
| Attr Order Sorted First | :white_check_mark: | :white_check_mark: | :x: | :x: | :x: | :x: | :x: | :x: |
| Attr Order Unsorted First | :white_check_mark: | :white_check_mark: | :x: | :x: | :x: | :x: | :x: | :x: |