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78 lines
2.8 KiB
Go
78 lines
2.8 KiB
Go
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//
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// Copyright 2026 The InfiniFlow Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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//go:build manual
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package tokenizer
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import "testing"
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// TestNumTokensFromString_MatchesPythonAnchors pins exact counts taken from the
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// Python reference suite (test/unit_test/common/test_token_utils.py:28-49) and
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// from common.token_utils.num_tokens_from_string for the CJK cases. The corpus
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// was later expanded to ~24 entries spanning ASCII, punctuation, digits,
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// whitespace, newlines, CJK, emoji, mixed-language, and code-like strings, all
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// recomputed against tiktoken's cl100k encoder.
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//
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// Exact values matter more than they look. NumTokensFromString swallows loader
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// errors and returns 0, so an assertion of the form "> 0" passes for an empty
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// string and fails to notice a dead encoder — which is precisely how the
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// offline breakage stayed invisible. Pinning the numbers also catches loading a
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// structurally valid but wrong table.
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//
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// This test needs the real cl100k_base table on disk (TIKTOKEN_CACHE_DIR,
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// the Dockerfile's /ragflow/<sha1> file, or ragflow_deps/cl100k_base.tiktoken),
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// so it is tagged `manual` and runs only under `build.sh --test-manual`,
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// which the docker builder provisions with /usr/share/infinity/resource.
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func TestNumTokensFromString_MatchesPythonAnchors(t *testing.T) {
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anchors := []struct {
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in string
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want int
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}{
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{"", 0},
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{"hello", 1},
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{"hello world", 2},
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{"hello, world!", 4},
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{"世界", 3},
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{"Hello 世界 🌍", 8},
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{"RAGFlow", 3},
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{"1234567890", 4},
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{"a b", 3},
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{"hello\nworld", 3},
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{"user@example.com", 3},
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{"https://example.com/path?x=1", 9},
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{"func main() {}", 4},
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{"aaaaaaaaaa", 2},
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{"中文字符测试", 4},
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{"🚀🔥", 6},
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{"state-of-the-art", 4},
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{`"quoted"`, 3},
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{"The quick brown fox jumps over the lazy dog.", 10},
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{"Café naïve résumé", 8},
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{"x² + y² = z²", 8},
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{"混合 English 和 中文 的 sentence。", 10},
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{"tokenization is the process of splitting text into tokens", 10},
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{"人工智能正在改变世界，这是毫无疑问的事实。", 25},
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{"SELECT * FROM users WHERE id = 1;", 10},
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{"こんにちは世界", 4},
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}
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for _, tc := range anchors {
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if got := NumTokensFromString(tc.in); got != tc.want {
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t.Errorf("NumTokensFromString(%q) = %d, want %d", tc.in, got, tc.want)
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}
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}
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}
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