Correct artifact path bookkeeping

internal/app/batch_execution_test.go

@@ -2,7 +2,9 @@ package app
 
 import (
 	"context"
+	"encoding/json"
 	"errors"
+	"strings"
 	"testing"
 
 	"gitea.maximumdirect.net/eric/weatherreporter/internal/collect"
@@ -39,6 +41,28 @@ func TestRunBatchDetailedInspectsEveryCandidateBeforeCollection(t *testing.T) {
 	}
 }
 
+func TestCopyBatchReportPathsLeavesUnreachedPathsEmpty(t *testing.T) {
+	item := BatchReportResult{}
+	copyBatchReportPaths(&item, &ReportResult{
+		DataPackagePath: "/runs/daily/data_package.yaml",
+		PreparationPath: "/runs/daily/preparation.json",
+	})
+
+	data, err := json.Marshal(item)
+	if err != nil {
+		t.Fatalf("Marshal() error = %v", err)
+	}
+	text := string(data)
+	for _, omitted := range []string{"executionPath", "reportPath", "outputPath", "metadataPath", "notificationPath"} {
+		if strings.Contains(text, omitted) {
+			t.Fatalf("batch item includes unreached field %q:\n%s", omitted, text)
+		}
+	}
+	if !strings.Contains(text, "dataPackagePath") || !strings.Contains(text, "preparationPath") {
+		t.Fatalf("batch item omits reached paths:\n%s", text)
+	}
+}
+
 type collectorFunc func(context.Context, collect.Request) (*collect.Result, error)
 
 func (f collectorFunc) Run(ctx context.Context, req collect.Request) (*collect.Result, error) {