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5f923cd | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | // Copyright 2025 The ODML Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "runtime/components/constrained_decoding/external_constraint_provider.h"
#include <memory>
#include <utility>
#include <vector>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include "absl/status/status.h" // from @com_google_absl
#include "runtime/components/constrained_decoding/constraint.h"
#include "runtime/components/constrained_decoding/constraint_provider_config.h"
#include "runtime/components/constrained_decoding/external_constraint_config.h"
#include "runtime/components/constrained_decoding/fake_constraint.h"
#include "runtime/components/constrained_decoding/fst_constraint_config.h"
#include "runtime/components/constrained_decoding/llg_constraint_config.h"
#include "runtime/util/test_utils.h" // NOLINT
namespace litert::lm {
namespace {
using ::testing::status::StatusIs;
TEST(ExternalConstraintProviderTest, Create) {
auto provider = std::make_unique<ExternalConstraintProvider>();
EXPECT_NE(provider, nullptr);
}
TEST(ExternalConstraintProviderTest, CreateConstraintSuccess) {
auto provider = std::make_unique<ExternalConstraintProvider>();
std::vector<int> tokens = {1, 2, 3};
auto fake_constraint =
std::make_unique<FakeConstraint>(tokens, /*vocab_size=*/10);
Constraint* raw_fake_constraint = fake_constraint.get();
ExternalConstraintArg external_constraint{std::move(fake_constraint)};
ASSERT_OK_AND_ASSIGN(auto constraint,
provider->CreateConstraint(
ConstraintArg(std::move(external_constraint))));
EXPECT_EQ(constraint.get(), raw_fake_constraint);
}
TEST(ExternalConstraintProviderTest, CreateConstraintFailsWithWrongArg) {
auto provider = std::make_unique<ExternalConstraintProvider>();
EXPECT_THAT(
provider->CreateConstraint(LlGuidanceConstraintArg{}),
StatusIs(
absl::StatusCode::kInvalidArgument,
"ExternalConstraintProvider only supports ExternalConstraintArg."));
EXPECT_THAT(
provider->CreateConstraint(FstConstraintArg{}),
StatusIs(
absl::StatusCode::kInvalidArgument,
"ExternalConstraintProvider only supports ExternalConstraintArg."));
}
} // namespace
} // namespace litert::lm
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