Eric Rakestraw
291a9178c8
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119 lines
3.4 KiB
Go
119 lines
3.4 KiB
Go
// service_test.go validates application service delegation behavior.
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// Layer: internal/app tests for read use-case orchestration.
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package app
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import (
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"context"
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"errors"
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"testing"
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"gitea.maximumdirect.net/ejr/weatherfeeder/model"
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)
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type fakeRepository struct {
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observation *model.WeatherObservation
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forecast *model.WeatherForecastRun
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narrative *model.WeatherForecastRun
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alerts *model.WeatherAlertRun
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conditions *CurrentConditions
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err error
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currentConditionsWindow int
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}
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func (r *fakeRepository) LatestObservation(context.Context) (*model.WeatherObservation, error) {
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return r.observation, r.err
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}
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func (r *fakeRepository) LatestHourlyForecast(context.Context) (*model.WeatherForecastRun, error) {
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return r.forecast, r.err
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}
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func (r *fakeRepository) LatestNarrativeForecast(context.Context) (*model.WeatherForecastRun, error) {
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return r.narrative, r.err
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}
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func (r *fakeRepository) LatestAlertRun(context.Context) (*model.WeatherAlertRun, error) {
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return r.alerts, r.err
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}
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func (r *fakeRepository) CurrentConditions(_ context.Context, observationWindowMinutes int) (*CurrentConditions, error) {
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r.currentConditionsWindow = observationWindowMinutes
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return r.conditions, r.err
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}
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func TestServiceDelegatesObservation(t *testing.T) {
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repo := &fakeRepository{observation: &model.WeatherObservation{StationID: "KSTL"}}
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svc := NewService(repo)
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obs, err := svc.LatestObservation(context.Background())
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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if obs == nil || obs.StationID != "KSTL" {
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t.Fatalf("unexpected observation: %+v", obs)
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}
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}
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func TestServiceDelegatesForecast(t *testing.T) {
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repo := &fakeRepository{forecast: &model.WeatherForecastRun{LocationID: "stl"}}
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svc := NewService(repo)
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run, err := svc.LatestHourlyForecast(context.Background())
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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if run == nil || run.LocationID != "stl" {
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t.Fatalf("unexpected forecast: %+v", run)
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}
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}
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func TestServiceDelegatesNarrativeForecast(t *testing.T) {
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repo := &fakeRepository{narrative: &model.WeatherForecastRun{LocationID: "stl-narrative"}}
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svc := NewService(repo)
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run, err := svc.LatestNarrativeForecast(context.Background())
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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if run == nil || run.LocationID != "stl-narrative" {
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t.Fatalf("unexpected forecast: %+v", run)
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}
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}
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func TestServiceDelegatesAlerts(t *testing.T) {
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repo := &fakeRepository{alerts: &model.WeatherAlertRun{LocationID: "stl"}}
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svc := NewService(repo)
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run, err := svc.LatestAlertRun(context.Background())
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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if run == nil || run.LocationID != "stl" {
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t.Fatalf("unexpected alert run: %+v", run)
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}
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}
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func TestServiceUsesDefaultCurrentConditionsWindow(t *testing.T) {
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repo := &fakeRepository{conditions: &CurrentConditions{ConditionCode: model.WMOUnknown}}
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svc := NewService(repo)
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_, err := svc.CurrentConditions(context.Background())
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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if repo.currentConditionsWindow != ObservationWindowMinutesDefault {
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t.Fatalf("expected observation window %d, got %d", ObservationWindowMinutesDefault, repo.currentConditionsWindow)
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}
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}
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func TestServicePropagatesErrors(t *testing.T) {
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want := errors.New("boom")
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repo := &fakeRepository{err: want}
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svc := NewService(repo)
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if _, err := svc.LatestObservation(context.Background()); !errors.Is(err, want) {
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t.Fatalf("expected error %v, got %v", want, err)
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}
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}
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