65 lines
2.8 KiB
Go
65 lines
2.8 KiB
Go
package app
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import (
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"bytes"
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"reflect"
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"testing"
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"gitea.maximumdirect.net/eric/weatherreporter/internal/collect"
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"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
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)
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func TestPrepareReportBuildsImmutableDeterministicInputs(t *testing.T) {
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cfg := generationConfig()
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bundle := generationBundle(t)
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resolved, err := ResolveGenerate(GenerateRequest{
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Config: cfg, Report: ReportDaily,
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Date: generationTime("2026-05-29T12:00:00-05:00"), Now: generationTime("2026-05-29T08:30:00-05:00"),
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}, generationTime("2026-05-29T08:30:00-05:00"))
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if err != nil {
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t.Fatalf("ResolveGenerate() error = %v", err)
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}
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request := prepareReportRequest{Config: cfg, Resolved: resolved, Collection: collect.Result{Bundle: &bundle}}
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prepared, err := prepareReport(request)
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if err != nil {
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t.Fatalf("prepareReport() error = %v", err)
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}
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repeated, err := prepareReport(request)
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if err != nil {
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t.Fatalf("second prepareReport() error = %v", err)
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}
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if len(prepared.dataPackage) == 0 || !bytes.Equal(prepared.dataPackage, repeated.dataPackage) || !reflect.DeepEqual(prepared.briefingMetadata, repeated.briefingMetadata) {
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t.Fatalf("prepared package/metadata are not deterministic: %q/%#v", prepared.dataPackage, prepared.briefingMetadata)
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}
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originalDataPackage := append([]byte(nil), prepared.dataPackage...)
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originalMetadata := prepared.briefingMetadata
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originalWarnings := append([]weatherdata.SourceWarning(nil), prepared.sourceWarnings...)
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metadata, snapshot, reportFacts, err := prepared.renderInputs()
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if err != nil {
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t.Fatalf("renderInputs() error = %v", err)
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}
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metadata.SourceWarnings = append(metadata.SourceWarnings, weatherdata.SourceWarning{Source: "test", Message: "consumer mutation"})
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snapshot.Outputs = nil
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reportFacts.Collected.Hourly.Periods[0].TextDescription = "consumer mutation"
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bundle.Hourly.Periods[0].TextDescription = "mutated after preparation"
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bundle.Warnings = append(bundle.Warnings, weatherdata.SourceWarning{Source: "test", Message: "mutated warning"})
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if len(bundle.Sources) > 0 {
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if bundle.Sources[0].Query == nil {
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bundle.Sources[0].Query = map[string]string{}
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}
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bundle.Sources[0].Query["mutated"] = "true"
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}
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if !bytes.Equal(prepared.dataPackage, originalDataPackage) || !reflect.DeepEqual(prepared.briefingMetadata, originalMetadata) || !reflect.DeepEqual(prepared.sourceWarnings, originalWarnings) {
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t.Fatalf("prepared values changed after caller mutation: %#v", prepared)
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}
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if prepared.reportFacts.Collected.Hourly.Periods[0].TextDescription == "mutated after preparation" {
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t.Fatal("prepared report facts retain caller-owned weather data")
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}
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if prepared.reportFacts.Collected.Hourly.Periods[0].TextDescription == "consumer mutation" || len(prepared.moduleSnapshot.Outputs) == 0 {
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t.Fatal("prepared report values retain consumer mutation")
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}
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}
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