Eric Rakestraw
6806de3c0a
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228 lines
7.5 KiB
Go
228 lines
7.5 KiB
Go
// payload_test.go validates presenter conversion and payload shaping behavior.
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// Layer: adapters/inbound/httpapi/presenter unit and schema tests.
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package presenter
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import (
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"math"
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"testing"
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"time"
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"gitea.maximumdirect.net/ejr/weatherapi/internal/app"
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"gitea.maximumdirect.net/ejr/weatherfeeder/model"
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)
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func TestObservationPayloadUS(t *testing.T) {
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obs := &model.WeatherObservation{
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StationID: "KSTL",
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Timestamp: time.Date(2026, 3, 20, 0, 0, 0, 0, time.UTC),
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ConditionCode: 2,
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TemperatureC: float64Ptr(20),
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DewpointC: float64Ptr(10),
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WindSpeedKmh: float64Ptr(100),
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WindGustKmh: float64Ptr(80),
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BarometricPressurePa: float64Ptr(101325),
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VisibilityMeters: float64Ptr(1609.344),
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ApparentTemperatureC: float64Ptr(25),
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RelativeHumidityPercent: float64Ptr(50),
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}
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payload := ObservationPayload(obs, UnitsUS, 2)
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converted, ok := payload.(WeatherObservationUS)
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if !ok {
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t.Fatalf("expected WeatherObservationUS payload, got %T", payload)
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}
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assertApprox(t, converted.TemperatureF, 68.0, 0.0001)
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assertApprox(t, converted.WindSpeedMph, 62.14, 0.0001)
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assertApprox(t, converted.BarometricPressureInHg, 29.92, 0.0001)
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assertApprox(t, converted.VisibilityMiles, 1.0, 0.0001)
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if converted.TemperatureF == nil || converted.DewpointF == nil || converted.ApparentTemperatureF == nil {
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t.Fatalf("expected converted Fahrenheit fields to be populated")
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}
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}
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func TestForecastPayloadUS(t *testing.T) {
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issuedAt := time.Date(2026, 3, 20, 12, 0, 0, 0, time.UTC)
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updatedAt := issuedAt.Add(1 * time.Hour)
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run := &model.WeatherForecastRun{
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LocationID: "stl",
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IssuedAt: issuedAt,
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UpdatedAt: &updatedAt,
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Product: model.ForecastProductHourly,
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ElevationMeters: float64Ptr(1000),
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Periods: []model.WeatherForecastPeriod{{
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StartTime: issuedAt,
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EndTime: issuedAt.Add(1 * time.Hour),
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ConditionCode: 63,
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TemperatureC: float64Ptr(0),
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TemperatureCMin: float64Ptr(-5),
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TemperatureCMax: float64Ptr(5),
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WindSpeedKmh: float64Ptr(64.37376),
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PrecipitationAmountMm: float64Ptr(25.4),
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SnowfallDepthMM: float64Ptr(50.8),
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}},
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}
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payload := ForecastPayload(run, UnitsUS, 2)
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converted, ok := payload.(WeatherForecastRunUS)
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if !ok {
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t.Fatalf("expected WeatherForecastRunUS payload, got %T", payload)
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}
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assertApprox(t, converted.ElevationFeet, 3280.84, 0.0001)
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if len(converted.Periods) != 1 {
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t.Fatalf("expected 1 period, got %d", len(converted.Periods))
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}
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period := converted.Periods[0]
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assertApprox(t, period.TemperatureF, 32.0, 0.0001)
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assertApprox(t, period.TemperatureFMin, 23.0, 0.0001)
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assertApprox(t, period.TemperatureFMax, 41.0, 0.0001)
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assertApprox(t, period.WindSpeedMph, 40.0, 0.0001)
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assertApprox(t, period.PrecipitationAmountIn, 1.0, 0.0001)
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assertApprox(t, period.SnowfallDepthIn, 2.0, 0.0001)
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}
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func TestMetricCopyAndNilHandling(t *testing.T) {
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obs := &model.WeatherObservation{
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TemperatureC: float64Ptr(20.6),
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}
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metric := ObservationPayload(obs, UnitsMetric, 0)
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metricObs, ok := metric.(*model.WeatherObservation)
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if !ok {
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t.Fatalf("expected metric payload to remain model type, got %T", metric)
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}
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if metricObs == obs {
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t.Fatalf("expected metric payload to be copied")
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}
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assertApprox(t, metricObs.TemperatureC, 21, 0.0001)
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assertApprox(t, obs.TemperatureC, 20.6, 0.0001)
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if metricObs.TemperatureC == obs.TemperatureC {
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t.Fatalf("expected temperature pointer copy, got same pointer")
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}
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if ObservationPayload(nil, UnitsUS, 0) != nil {
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t.Fatalf("expected nil observation input to return nil payload")
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}
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if ForecastPayload(nil, UnitsUS, 0) != nil {
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t.Fatalf("expected nil forecast input to return nil payload")
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}
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if AlertsPayload(nil, UnitsUS) != nil {
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t.Fatalf("expected nil alerts input to return nil payload")
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}
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if CurrentConditionsPayload(nil, UnitsUS, 0) != nil {
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t.Fatalf("expected nil current conditions input to return nil payload")
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}
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}
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func TestCurrentConditionsPayloadMetricAndUS(t *testing.T) {
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conditions := &app.CurrentConditions{
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TemperatureC: float64Ptr(20),
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ApparentTemperatureC: float64Ptr(18),
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DewpointC: float64Ptr(10),
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RelativeHumidityPercent: float64Ptr(55),
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WindSpeedKmh: float64Ptr(100),
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WindDirectionDegrees: float64Ptr(225),
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ConditionCode: 0,
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IsDay: boolPtr(true),
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}
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metricPayload := CurrentConditionsPayload(conditions, UnitsMetric, 2)
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metric, ok := metricPayload.(CurrentConditionsResponse)
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if !ok {
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t.Fatalf("expected CurrentConditionsResponse metric payload, got %T", metricPayload)
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}
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assertApprox(t, metric.TemperatureC, 20, 0.0001)
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assertApprox(t, metric.WindSpeedKmh, 100, 0.0001)
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if metric.TemperatureF != nil || metric.WindSpeedMph != nil {
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t.Fatalf("expected US fields omitted for metric payload")
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}
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if metric.ConditionText != "Sunny" {
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t.Fatalf("expected condition text Sunny, got %q", metric.ConditionText)
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}
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usPayload := CurrentConditionsPayload(conditions, UnitsUS, 2)
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us, ok := usPayload.(CurrentConditionsResponse)
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if !ok {
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t.Fatalf("expected CurrentConditionsResponse US payload, got %T", usPayload)
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}
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assertApprox(t, us.TemperatureF, 68, 0.0001)
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assertApprox(t, us.WindSpeedMph, 62.14, 0.0001)
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if us.TemperatureC != nil || us.WindSpeedKmh != nil {
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t.Fatalf("expected metric fields omitted for US payload")
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}
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}
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func TestCurrentConditionsPayloadUsesNightConditionText(t *testing.T) {
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night := false
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payload := CurrentConditionsPayload(&app.CurrentConditions{
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ConditionCode: 0,
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IsDay: &night,
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}, UnitsMetric, 0)
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metric, ok := payload.(CurrentConditionsResponse)
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if !ok {
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t.Fatalf("expected CurrentConditionsResponse payload, got %T", payload)
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}
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if metric.ConditionText != "Clear" {
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t.Fatalf("expected condition text Clear, got %q", metric.ConditionText)
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}
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}
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func TestCurrentConditionsPayloadRoundsHalfAwayFromZero(t *testing.T) {
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payload := CurrentConditionsPayload(&app.CurrentConditions{
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TemperatureC: float64Ptr(-1.5),
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}, UnitsMetric, 0)
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metric, ok := payload.(CurrentConditionsResponse)
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if !ok {
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t.Fatalf("expected CurrentConditionsResponse payload, got %T", payload)
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}
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assertApprox(t, metric.TemperatureC, -2, 0.0001)
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}
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func TestForecastPayloadLatitudeLongitudeNotRounded(t *testing.T) {
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run := &model.WeatherForecastRun{
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Latitude: float64Ptr(38.627123),
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Longitude: float64Ptr(-90.199456),
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ElevationMeters: float64Ptr(10.499),
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Product: model.ForecastProductHourly,
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IssuedAt: time.Now().UTC(),
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}
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metricPayload := ForecastPayload(run, UnitsMetric, 0)
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metric, ok := metricPayload.(*model.WeatherForecastRun)
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if !ok {
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t.Fatalf("expected metric payload type *model.WeatherForecastRun, got %T", metricPayload)
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}
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assertApprox(t, metric.Latitude, 38.627123, 0.000001)
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assertApprox(t, metric.Longitude, -90.199456, 0.000001)
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assertApprox(t, metric.ElevationMeters, 10, 0.0001)
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usPayload := ForecastPayload(run, UnitsUS, 0)
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us, ok := usPayload.(WeatherForecastRunUS)
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if !ok {
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t.Fatalf("expected us payload type WeatherForecastRunUS, got %T", usPayload)
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}
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assertApprox(t, us.Latitude, 38.627123, 0.000001)
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assertApprox(t, us.Longitude, -90.199456, 0.000001)
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}
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func float64Ptr(v float64) *float64 {
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return &v
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}
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func boolPtr(v bool) *bool {
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return &v
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}
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func assertApprox(t *testing.T, got *float64, want, eps float64) {
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t.Helper()
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if got == nil {
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t.Fatalf("expected value near %f, got nil", want)
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}
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if math.Abs(*got-want) > eps {
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t.Fatalf("expected %f +/- %f, got %f", want, eps, *got)
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}
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}
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