eric/weatherreporter
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases 2 Wiki Activity

Implement derived forecast modules

Browse Source
This commit is contained in:
Eric Rakestraw
2026-06-09 20:43:53 +00:00
parent 9501dad1dc
commit eefb0681dc
8 changed files with 662 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

41
internal/forecast/derive_test.go
View File

@@ -210,6 +210,47 @@ func TestAlertOverlap(t *testing.T) {
}
}
func TestBuildPrecipTimingTracksRainAndThunder(t *testing.T) {
location := time.FixedZone("Test", -5*60*60)
periods := []weatherdata.ForecastPeriod{
hour(location, "2026-05-29T08:00:00-05:00", "2026-05-29T09:00:00-05:00", "Cloudy", 70, nil, ptr(0), nil, nil),
hour(location, "2026-05-29T09:00:00-05:00", "2026-05-29T10:00:00-05:00", "Showers", 70, nil, ptr(30), nil, nil),
hour(location, "2026-05-29T12:00:00-05:00", "2026-05-29T13:00:00-05:00", "Thunderstorms", 70, nil, ptr(80), nil, nil),
hour(location, "2026-05-29T18:00:00-05:00", "2026-05-29T19:00:00-05:00", "Dry", 70, nil, ptr(0), nil, nil),
}
timing := BuildPrecipTiming(periods)
if timing.FirstPrecipitation == nil || timing.FirstPrecipitation.Time.Format(time.RFC3339) != "2026-05-29T09:00:00-05:00" {
t.Fatalf("FirstPrecipitation = %#v, want 9 AM shower", timing.FirstPrecipitation)
}
if timing.LastPrecipitation == nil || timing.LastPrecipitation.Time.Format(time.RFC3339) != "2026-05-29T12:00:00-05:00" {
t.Fatalf("LastPrecipitation = %#v, want noon thunderstorm", timing.LastPrecipitation)
}
if timing.MaxPrecipitationProbability == nil || timing.MaxPrecipitationProbability.Value != 80 {
t.Fatalf("MaxPrecipitationProbability = %#v, want 80", timing.MaxPrecipitationProbability)
}
if !timing.ThunderMentioned {
t.Fatal("ThunderMentioned = false, want true")
}
}
func TestBuildPrecipTimingHandlesDryForecast(t *testing.T) {
location := time.FixedZone("Test", -5*60*60)
periods := []weatherdata.ForecastPeriod{
hour(location, "2026-05-29T08:00:00-05:00", "2026-05-29T09:00:00-05:00", "Sunny", 70, nil, ptr(0), nil, nil),
}
timing := BuildPrecipTiming(periods)
if timing.FirstPrecipitation != nil || timing.LastPrecipitation != nil || timing.ThunderMentioned {
t.Fatalf("dry timing = %#v, want no precip timing and no thunder", timing)
}
if timing.MaxPrecipitationProbability == nil || timing.MaxPrecipitationProbability.Value != 0 {
t.Fatalf("dry max precip = %#v, want checked zero chance", timing.MaxPrecipitationProbability)
}
}
func TestThresholdHelpers(t *testing.T) {
if !DifferenceAtLeast(50, 56, 5) {
t.Fatal("DifferenceAtLeast = false, want true")