Files
weatherreporter/internal/generatedtext/render_context_test.go

250 lines
8.4 KiB
Go

package generatedtext
import (
"strings"
"testing"
"time"
"gitea.maximumdirect.net/eric/weatherreporter/internal/briefing"
"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
"gitea.maximumdirect.net/eric/weatherreporter/internal/reporttemplate"
"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
)
func TestBuildHourlyRenderContext(t *testing.T) {
metadata := testMetadata()
snapshot := testSnapshot(t)
generated := Hourly{
Summary: "Storm chances increase through late morning.",
Timing: "The main window is 10 AM to noon.",
Impacts: "Brief downpours may slow travel.",
Confidence: "Medium confidence in timing.",
}
ctx, err := BuildHourlyRenderContext(metadata, snapshot, generated)
if err != nil {
t.Fatalf("BuildHourlyRenderContext() error = %v", err)
}
if ctx.ReportTitle != "Hourly Report" {
t.Fatalf("ReportTitle = %q, want Hourly Report", ctx.ReportTitle)
}
if ctx.LocationName != "Brentwood, MO" {
t.Fatalf("LocationName = %q, want Brentwood, MO", ctx.LocationName)
}
if ctx.ValidPeriod != "2026-05-29 at 8:30 AM to 2026-05-29 at 2:30 PM" {
t.Fatalf("ValidPeriod = %q, want friendly period", ctx.ValidPeriod)
}
if ctx.CurrentConditions != "Partly cloudy; 74 F; feels like 76 F; humidity 71%; wind S 8 mph." {
t.Fatalf("CurrentConditions = %q, want deterministic summary", ctx.CurrentConditions)
}
if len(ctx.HourlyForecast) != 2 {
t.Fatalf("HourlyForecast length = %d, want 2", len(ctx.HourlyForecast))
}
if row := ctx.HourlyForecast[1]; row.Time != "2026-05-29 at 10:00 AM" || row.Summary != "Showers" || row.Precipitation != "70% precipitation" {
t.Fatalf("HourlyForecast[1] = %#v, want 10 AM showers row", row)
}
if !strings.Contains(ctx.PrecipitationTiming, "Peak precipitation probability 70% at 10 AM") {
t.Fatalf("PrecipitationTiming = %q, want peak probability", ctx.PrecipitationTiming)
}
if strings.Join(ctx.Alerts, "|") != "Flood Watch: Flood Watch until early afternoon (Moderate)" {
t.Fatalf("Alerts = %#v, want alert label", ctx.Alerts)
}
if strings.Join(ctx.SPCOutlooks, "|") != "Slight Risk from 2026-05-29 at 7:00 AM to 2026-05-29 at 3:00 PM" {
t.Fatalf("SPCOutlooks = %#v, want outlook label", ctx.SPCOutlooks)
}
if ctx.ForecastDiscussion.ShortTerm != "Short-term discussion favors increasing rain coverage." {
t.Fatalf("ForecastDiscussion.ShortTerm = %q, want discussion text", ctx.ForecastDiscussion.ShortTerm)
}
if strings.Join(ctx.SPCDiscussions, "|") != "Mesoscale discussion: Strong storms may develop late morning." {
t.Fatalf("SPCDiscussions = %#v, want discussion label", ctx.SPCDiscussions)
}
if ctx.WeatherStory != "Morning storms - Morning storms remain the main story." {
t.Fatalf("WeatherStory = %q, want story label", ctx.WeatherStory)
}
rendered, err := reporttemplate.Render("hourly", ctx)
if err != nil {
t.Fatalf("Render() error = %v", err)
}
text := string(rendered)
for _, want := range []string{
"# Hourly Report",
"Storm chances increase through late morning.",
"- 2026-05-29 at 10:00 AM: Showers; 75 F; 70% precipitation; wind S 10 mph, gusts 18 mph",
"- Flood Watch: Flood Watch until early afternoon (Moderate)",
"Morning storms - Morning storms remain the main story.",
} {
if !strings.Contains(text, want) {
t.Fatalf("rendered template missing %q:\n%s", want, text)
}
}
}
func TestBuildHourlyRenderContextRequiresCoreStanzas(t *testing.T) {
snapshot, err := module.NewSnapshot([]module.Output{
{ID: module.CurrentConditions, StanzaName: string(module.CurrentConditions), Value: briefing.CurrentConditionsModule{}},
})
if err != nil {
t.Fatalf("NewSnapshot() error = %v", err)
}
_, err = BuildHourlyRenderContext(testMetadata(), snapshot, Hourly{
Summary: "Storm chances increase.",
Timing: "Late morning.",
Impacts: "Brief downpours.",
})
if err == nil {
t.Fatal("BuildHourlyRenderContext() error = nil, want missing stanza error")
}
if !strings.Contains(err.Error(), `requires stanza "hourly_forecast"`) {
t.Fatalf("BuildHourlyRenderContext() error = %v, want missing hourly forecast stanza", err)
}
}
func testMetadata() briefing.Metadata {
generatedAt := time.Date(2026, 5, 29, 13, 30, 0, 0, time.UTC)
return briefing.Metadata{
RunID: "run-1",
ReportID: report.Hourly,
PromptID: "weather.hourly_generated_text",
GeneratedAt: generatedAt,
Units: "imperial",
Timezone: "America/Chicago",
ValidPeriod: timeutil.Period{
Start: generatedAt,
End: generatedAt.Add(6 * time.Hour),
},
Location: &briefing.LocationContext{
Name: "Brentwood",
Region: "MO",
},
}
}
func testSnapshot(t *testing.T) module.Snapshot {
t.Helper()
snapshot, err := module.NewSnapshot([]module.Output{
{
ID: module.CurrentConditions,
StanzaName: string(module.CurrentConditions),
Value: briefing.CurrentConditionsModule{
ConditionText: "Partly cloudy",
TemperatureF: floatPtr(74),
ApparentTemperatureF: floatPtr(76),
RelativeHumidityPercent: floatPtr(71),
WindSpeedMph: floatPtr(8),
WindDirection: "S",
},
},
{
ID: module.HourlyForecast,
StanzaName: string(module.HourlyForecast),
Value: briefing.HourlyForecastModule{
Periods: []briefing.HourlyForecastPeriod{
{
PeriodBegins: "2026-05-29 at 9:00 AM",
TextDescription: "Cloudy",
TemperatureF: floatPtr(74),
ProbabilityOfPrecipitationPercent: floatPtr(30),
WindSpeedMph: floatPtr(8),
WindDirection: "S",
},
{
PeriodBegins: "2026-05-29 at 10:00 AM",
TextDescription: "Showers",
TemperatureF: floatPtr(75),
ProbabilityOfPrecipitationPercent: floatPtr(70),
WindSpeedMph: floatPtr(10),
WindGustMph: floatPtr(18),
WindDirection: "S",
},
},
},
},
{
ID: module.PrecipTiming,
StanzaName: string(module.PrecipTiming),
Value: briefing.PrecipTimingModule{
MaxPopPercent: intPtr(70),
MaxPopTime: "10 AM",
ProbabilityThreshold: 50,
PrecipitationWindows: []briefing.PrecipitationWindowModule{
{
PeriodBegins: "2026-05-29 at 10:00 AM",
PeriodEnds: "2026-05-29 at 12:00 PM",
MaxPopPercent: intPtr(70),
MaxPopTime: "10 AM",
},
},
ThunderMentioned: true,
},
},
{
ID: module.AlertDigest,
StanzaName: string(module.AlertDigest),
Value: briefing.AlertDigestModule{
Checked: true,
ActiveCount: 1,
RelevantCount: 1,
Relevant: []briefing.AlertSummary{
{Event: "Flood Watch", Headline: "Flood Watch until early afternoon", Severity: "Moderate"},
},
},
},
{
ID: module.SPCConvectiveOutlooks,
StanzaName: string(module.SPCConvectiveOutlooks),
Value: briefing.SPCConvectiveOutlooksModule{
Checked: true,
OutlookCount: 1,
Outlooks: []briefing.SPCConvectiveOutlookRecord{
{
Label: "SLGT",
LabelText: "Slight Risk",
PeriodBegins: "2026-05-29 at 7:00 AM",
PeriodEnds: "2026-05-29 at 3:00 PM",
},
},
},
},
{
ID: module.AreaForecastDiscussion,
StanzaName: string(module.AreaForecastDiscussion),
Value: briefing.AreaForecastDiscussionModule{
KeyMessages: []string{"Storms are most likely late morning."},
ShortTerm: "Short-term discussion favors increasing rain coverage.",
},
},
{
ID: module.SPCConvectiveDiscussion,
StanzaName: string(module.SPCConvectiveDiscussion),
Value: briefing.SPCConvectiveDiscussionModule{
IncludedBecause: "categorical severity_rank >= 3",
Discussions: []briefing.SPCConvectiveDiscussionRecord{
{Headline: "Mesoscale discussion", Summary: "Strong storms may develop late morning."},
},
},
},
{
ID: module.WeatherStory,
StanzaName: string(module.WeatherStory),
Value: briefing.WeatherStoryModule{
Available: true,
Title: "Morning storms",
Description: "Morning storms remain the main story.",
},
},
})
if err != nil {
t.Fatalf("NewSnapshot() error = %v", err)
}
return snapshot
}
func floatPtr(value float64) *float64 {
return &value
}
func intPtr(value int) *int {
return &value
}