chore: import upstream snapshot with attribution

cmd/config/init_interactive_test.go

@@ -0,0 +1,70 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package config
+
+import (
+	"context"
+	"errors"
+	"net"
+	"testing"
+
+	"github.com/larksuite/cli/errs"
+	larkauth "github.com/larksuite/cli/internal/auth"
+)
+
+func assertRegistrationProblem(t *testing.T, got, cause error, category errs.Category, subtype errs.Subtype) *errs.Problem {
+	t.Helper()
+	p, ok := errs.ProblemOf(got)
+	if !ok {
+		t.Fatalf("error %T is not typed: %v", got, got)
+	}
+	if p.Category != category || p.Subtype != subtype {
+		t.Errorf("problem = (%q, %q), want (%q, %q)", p.Category, p.Subtype, category, subtype)
+	}
+	if !errors.Is(got, cause) {
+		t.Errorf("error %v does not preserve cause %v", got, cause)
+	}
+	return p
+}
+
+func TestClassifyRegistrationBeginError(t *testing.T) {
+	tests := []struct {
+		name     string
+		err      error
+		category errs.Category
+		subtype  errs.Subtype
+	}{
+		{"cancelled", context.Canceled, errs.CategoryAuthentication, errs.SubtypeUnknown},
+		{"deadline", context.DeadlineExceeded, errs.CategoryNetwork, errs.SubtypeNetworkTimeout},
+		{"transport", &net.DNSError{Err: "lookup failed", Name: "accounts.example"}, errs.CategoryNetwork, errs.SubtypeNetworkTransport},
+		{"response", errors.New("response not JSON"), errs.CategoryAPI, errs.SubtypeUnknown},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			assertRegistrationProblem(t, classifyRegistrationBeginError(tt.err), tt.err, tt.category, tt.subtype)
+		})
+	}
+}
+
+func TestClassifyRegistrationError(t *testing.T) {
+	tests := []struct {
+		name    string
+		err     error
+		subtype errs.Subtype
+		hint    bool
+	}{
+		{"denied", larkauth.ErrRegistrationDenied, errs.SubtypeUnknown, true},
+		{"expired", larkauth.ErrRegistrationExpired, errs.SubtypeTokenExpired, true},
+		{"timed-out", larkauth.ErrRegistrationTimedOut, errs.SubtypeTokenExpired, true},
+		{"cancelled", context.Canceled, errs.SubtypeUnknown, false},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			p := assertRegistrationProblem(t, classifyRegistrationError(tt.err), tt.err, errs.CategoryAuthentication, tt.subtype)
+			if (p.Hint != "") != tt.hint {
+				t.Errorf("hint = %q, want non-empty=%v", p.Hint, tt.hint)
+			}
+		})
+	}
+}