feat: support restic check operation (#303)

internal/orchestrator/repo/repo_test.go

@@ -1,6 +1,7 @@
 package repo
 
 import (
+	"bytes"
 	"context"
 	"os"
 	"slices"
@@ -189,3 +190,59 @@ func TestEnvVarPropagation(t *testing.T) {
 		t.Fatal("expected snapshot id")
 	}
 }
+
+func TestCheck(t *testing.T) {
+	t.Parallel()
+
+	tcs := []struct {
+		name string
+		repo *v1.Repo
+	}{
+		{
+			name: "check structure",
+			repo: &v1.Repo{
+				Id:       "test",
+				Uri:      t.TempDir(),
+				Password: "test",
+				CheckPolicy: &v1.CheckPolicy{
+					Mode: nil,
+				},
+			},
+		},
+		{
+			name: "read data percent",
+			repo: &v1.Repo{
+				Id:       "test",
+				Uri:      t.TempDir(),
+				Password: "test",
+				CheckPolicy: &v1.CheckPolicy{
+					Mode: &v1.CheckPolicy_ReadDataSubsetPercent{
+						ReadDataSubsetPercent: 50,
+					},
+				},
+			},
+		},
+	}
+
+	for _, tc := range tcs {
+		t.Run(tc.name, func(t *testing.T) {
+			orchestrator, err := NewRepoOrchestrator(configForTest, tc.repo, helpers.ResticBinary(t))
+			if err != nil {
+				t.Fatalf("failed to create repo orchestrator: %v", err)
+			}
+
+			buf := bytes.NewBuffer(nil)
+
+			err = orchestrator.Init(context.Background())
+			if err != nil {
+				t.Fatalf("init error: %v", err)
+			}
+
+			err = orchestrator.Check(context.Background(), buf)
+			if err != nil {
+				t.Errorf("check error: %v", err)
+			}
+			t.Logf("check output: %s", buf.String())
+		})
+	}
+}