Reset master to testing content

internal/parity/parity_test.go

@@ -0,0 +1,88 @@
+// Cthulhu screen reader.
+// Copyright (c) 2026 Storm Dragon
+// Authors: Storm Dragon, Angus Kola
+//
+// This program is free software: you can redistribute it and/or modify it
+// under the terms of the GNU General Public License as published by the Free
+// Software Foundation, either version 3 of the License, or (at your option)
+// any later version.
+//
+// This program is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+// more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// this program. If not, see <https://www.gnu.org/licenses/gpl-3.0.html>.
+
+package parity
+
+import (
+	"errors"
+	"strings"
+	"testing"
+)
+
+func TestLoadValidLedger(t *testing.T) {
+	ledger := strings.Join([]string{
+		strings.Join(columns, ","),
+		"core-startup,src/cthulhu/cthulhu.py,core,start the screen reader,Storm Dragon,internal/app,pending,,,,,,initial inventory",
+		"web-navigation,src/cthulhu/scripts/web/script.py,web,structural navigation,Storm Dragon,internal/script,pending,,,,,,initial inventory",
+	}, "\n")
+
+	records, err := Load(strings.NewReader(ledger))
+	if err != nil {
+		t.Fatalf("Load: %v", err)
+	}
+	if len(records) != 2 {
+		t.Fatalf("record count = %d, want 2", len(records))
+	}
+}
+
+func TestLoadRejectsInvalidRecords(t *testing.T) {
+	tests := []struct {
+		name    string
+		ledger  string
+		wantErr error
+	}{
+		{
+			name:    "missing header",
+			ledger:  "id\n",
+			wantErr: ErrSchema,
+		},
+		{
+			name: "invalid status",
+			ledger: strings.Join([]string{
+				strings.Join(columns, ","),
+				"one,source.py,core,behavior,owner,destination,unknown,,,,,,note",
+			}, "\n"),
+			wantErr: ErrSchema,
+		},
+		{
+			name: "duplicate id",
+			ledger: strings.Join([]string{
+				strings.Join(columns, ","),
+				"one,source.py,core,behavior,owner,destination,pending,,,,,,note",
+				"one,source.py,core,behavior,owner,destination,pending,,,,,,note",
+			}, "\n"),
+			wantErr: ErrSchema,
+		},
+		{
+			name: "missing destination",
+			ledger: strings.Join([]string{
+				strings.Join(columns, ","),
+				"one,source.py,core,behavior,owner,,pending,,,,,,note",
+			}, "\n"),
+			wantErr: ErrSchema,
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			_, err := Load(strings.NewReader(test.ledger))
+			if !errors.Is(err, test.wantErr) {
+				t.Fatalf("Load error = %v, want %v", err, test.wantErr)
+			}
+		})
+	}
+}