feat: rank growth events with grounded evidence

internal/eventcatalog/import_test.go

@@ -1,11 +1,14 @@
 package eventcatalog
 
-import "testing"
+import (
+	"fmt"
+	"testing"
+)
 
 func TestValidateImportRequiresThreePastAndTwoFutureJalaliYears(t *testing.T) {
 	t.Parallel()
 
-	input := Import{Version: "1402-1407-v1", CoverageStartJalaliYear: 1402, CoverageEndJalaliYear: 1407, SourceURI: "https://calendar.ut.ac.ir/", SourceVersion: "reviewed", SourceChecksum: "abc", ImportedBy: "operator-a", Events: []Event{{ID: "nowruz", TitleFA: "نوروز", StartDate: "2026-03-21", EndDate: "2026-03-24", Type: TypeCultural, Tone: ToneCelebratory, CommercialPosture: PosturePromote, SourceURI: "https://calendar.ut.ac.ir/", SourceVersion: "1405", InclusionRationale: "تقویم رسمی", GeographicScope: "IR", RelevanceBPS: 10000, ConfidenceBPS: 10000}}}
+	input := validCoveredImport()
 	if err := ValidateImport(input, 1405); err != nil {
 		t.Fatal(err)
 	}
@@ -16,6 +19,39 @@ func TestValidateImportRequiresThreePastAndTwoFutureJalaliYears(t *testing.T) {
 	}
 }
 
+func TestValidateImportRejectsMisleadingDeclaredCoverage(t *testing.T) {
+	t.Parallel()
+
+	input := validCoveredImport()
+	input.Events = input.Events[:len(input.Events)-1]
+	if err := ValidateImport(input, 1405); err == nil {
+		t.Fatal("expected missing declared coverage year error")
+	}
+}
+
+func TestValidateImportRequiresExplicitOccasionKey(t *testing.T) {
+	t.Parallel()
+
+	input := validCoveredImport()
+	input.Events[0].OccasionKey = ""
+	if err := ValidateImport(input, 1405); err == nil {
+		t.Fatal("expected missing occasion key error")
+	}
+}
+
+func TestValidateReviewableChecksumRejectsPlaceholder(t *testing.T) {
+	t.Parallel()
+
+	for _, checksum := range []string{"review-required-before-activation-1405-v2", "pending-review", "placeholder"} {
+		if err := ValidateReviewableChecksum(checksum); err == nil {
+			t.Errorf("expected placeholder checksum %q to be rejected", checksum)
+		}
+	}
+	if err := ValidateReviewableChecksum("sha256:5f70bf18a086007016e948b04aed3b82103a36be3a0ab2aeeabe46d778b8bdc0"); err != nil {
+		t.Fatal(err)
+	}
+}
+
 func TestValidateApprovalRequiresIndependentReviewer(t *testing.T) {
 	t.Parallel()
 
@@ -26,3 +62,15 @@ func TestValidateApprovalRequiresIndependentReviewer(t *testing.T) {
 		t.Fatal(err)
 	}
 }
+
+func validCoveredImport() Import {
+	events := make([]Event, 0, 6)
+	for year := 1402; year <= 1407; year++ {
+		gregorianYear := year + 621
+		event := validCatalogEvent(fmt.Sprintf("education-enrollment-%d", year), fmt.Sprintf("%d-09-01", gregorianYear), year)
+		event.OccasionKey = "education-enrollment"
+		event.Variant = "CAMPAIGN_WINDOW"
+		events = append(events, event)
+	}
+	return Import{Version: "1402-1407-v2", CoverageStartJalaliYear: 1402, CoverageEndJalaliYear: 1407, SourceURI: "https://calendar.ut.ac.ir/", SourceVersion: "reviewed", SourceChecksum: "abc", ImportedBy: "operator-a", Events: events}
+}