Spaces:
Running
Running
File size: 4,827 Bytes
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 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 | // 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/stop_token_detector.h"
#include <cstddef>
#include <vector>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include "absl/status/status.h" // from @com_google_absl
#include "absl/types/span.h" // from @com_google_absl
#include "runtime/util/test_utils.h" // NOLINT
namespace litert::lm {
namespace {
TEST(StopTokenDetectorTest, AddStopSequence) {
StopTokenDetector detector(1);
EXPECT_TRUE(detector.AddStopTokenSequence({1, 2, 3}).ok());
// Adding an empty sequence should fail
EXPECT_EQ(absl::StatusCode::kInvalidArgument,
detector.AddStopTokenSequence({}).code());
// Adding a repeated sequence should be a no-op.
EXPECT_EQ(absl::StatusCode::kOk,
detector.AddStopTokenSequence({1, 2, 3}).code());
EXPECT_TRUE(detector.AddStopTokenSequence({9}).ok());
}
TEST(StopTokenDetectorTest, ProcessTokensSingleStopToken) {
StopTokenDetector detector(2); // Batch size 2
EXPECT_OK(detector.AddStopTokenSequence({5}));
std::vector<int> tokens_item0 = {3, 4, 5, 6, 7};
std::vector<int> tokens_item1 = {1, 0, 6, 5, 99};
// Simulate processing token by token
size_t i;
for (i = 0; i < tokens_item0.size(); ++i) {
std::vector<int> current_batch_tokens = {tokens_item0[i], tokens_item1[i]};
EXPECT_TRUE(
detector.ProcessTokens(absl::MakeSpan(current_batch_tokens)).ok());
if (detector.AllDone().value()) {
break;
}
}
// Stop token, 5, is found for all batch items at step 3.
EXPECT_EQ(i, 3);
const auto& steps_before_stop_tokens = detector.GetStepsBeforeStopTokens();
EXPECT_EQ(2, steps_before_stop_tokens.size());
// Batch item 0: stop token found at step 2, the current step is 3. So the
// steps before stop token is 2 = (3 - 2 + 1(# stop tokens)).
EXPECT_EQ(2, steps_before_stop_tokens[0]);
// Batch item 1: stop token found at step 3, the current step is 3. So the
// steps before stop token is = (3 - 3 + 1(# stop tokens)).
EXPECT_EQ(1, steps_before_stop_tokens[1]);
}
TEST(StopTokenDetectorTest, ProcessTokensMultipleStopTokens) {
StopTokenDetector detector(2); // Batch size 2
EXPECT_OK(detector.AddStopTokenSequence({5}));
EXPECT_OK(detector.AddStopTokenSequence({7, 8, 9}));
std::vector<int> tokens_item0 = {3, 6, 7, 8, 9, 10, 11, 12};
std::vector<int> tokens_item1 = {1, 0, 0, 0, 0, 6, 5, 99};
// Simulate processing token by token
size_t i;
for (i = 0; i < tokens_item0.size(); ++i) {
std::vector<int> current_batch_tokens = {tokens_item0[i], tokens_item1[i]};
EXPECT_TRUE(
detector.ProcessTokens(absl::MakeSpan(current_batch_tokens)).ok());
if (detector.AllDone().value()) {
break;
}
if (i < 2) {
EXPECT_EQ(0, detector.MaxPartialStopTokenLength(0));
} else if (i < 4) {
EXPECT_EQ(i - 1, detector.MaxPartialStopTokenLength(0));
} else {
EXPECT_EQ(3, detector.MaxPartialStopTokenLength(0));
}
EXPECT_EQ(0, detector.MaxPartialStopTokenLength(1));
}
// Stop tokens are found for all batch items at step 6.
EXPECT_EQ(i, 6);
const auto& steps_before_stop_tokens = detector.GetStepsBeforeStopTokens();
EXPECT_EQ(2, steps_before_stop_tokens.size());
// Batch item 0: stop token found at step 5, the current step is 6. So the
// steps before stop token is 4 = (6 - 5 + 3(# stop tokens)).
EXPECT_EQ(5, steps_before_stop_tokens[0]);
// Batch item 1: stop token found at step 6, the current step is 6. So the
// steps before stop token is 1 = (6 - 6 + 1(# stop tokens)).
EXPECT_EQ(1, steps_before_stop_tokens[1]);
}
TEST(StopTokenDetectorTest, ResetBatch) {
StopTokenDetector detector(1);
EXPECT_OK(detector.AddStopTokenSequence({1}));
std::vector<int> tokens1 = {0, 2, 3, 1, 5};
size_t i;
for (i = 0; i < tokens1.size(); ++i) {
std::vector<int> current_batch_tokens = {tokens1[i]};
EXPECT_TRUE(
detector.ProcessTokens(absl::MakeSpan(current_batch_tokens)).ok());
if (detector.AllDone().value()) {
break;
}
}
EXPECT_EQ(i, 3);
detector.ResetBatch();
// Batch is not done after reset.
EXPECT_FALSE(detector.AllDone().value());
EXPECT_EQ(0, detector.GetStepsBeforeStopTokens()[0]);
}
} // namespace
} // namespace litert::lm
|