Fix the wrong return value of onnx similarity evaluation

[SimFG]

issue: #459 #386

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[codecov[bot]]

Codecov Report

Merging #460 (234662d) into dev (de35ae6) will decrease coverage by 0.03%. The diff coverage is 83.33%.

Additional details and impacted files

[](https://app.codecov.io/gh/zilliztech/GPTCache/pull/460?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=zilliztech) ```diff @@ Coverage Diff @@ ## dev #460 +/- ## ========================================== - Coverage 94.02% 93.99% -0.03% ========================================== Files 92 92 Lines 3583 3583 ========================================== - Hits 3369 3368 -1 - Misses 214 215 +1 ``` | [Impacted Files](https://app.codecov.io/gh/zilliztech/GPTCache/pull/460?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=zilliztech) | Coverage Δ | | |---|---|---| | [gptcache/manager/scalar\_data/manager.py](https://app.codecov.io/gh/zilliztech/GPTCache/pull/460?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=zilliztech#diff-Z3B0Y2FjaGUvbWFuYWdlci9zY2FsYXJfZGF0YS9tYW5hZ2VyLnB5) | `90.47% <0.00%> (-4.77%)` | :arrow_down: | | [gptcache/processor/post.py](https://app.codecov.io/gh/zilliztech/GPTCache/pull/460?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=zilliztech#diff-Z3B0Y2FjaGUvcHJvY2Vzc29yL3Bvc3QucHk=) | `100.00% <ø> (ø)` | | | [gptcache/similarity\_evaluation/distance.py](https://app.codecov.io/gh/zilliztech/GPTCache/pull/460?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=zilliztech#diff-Z3B0Y2FjaGUvc2ltaWxhcml0eV9ldmFsdWF0aW9uL2Rpc3RhbmNlLnB5) | `100.00% <ø> (ø)` | | | [gptcache/adapter/adapter.py](https://app.codecov.io/gh/zilliztech/GPTCache/pull/460?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=zilliztech#diff-Z3B0Y2FjaGUvYWRhcHRlci9hZGFwdGVyLnB5) | `87.32% <100.00%> (ø)` | | | [gptcache/similarity\_evaluation/onnx.py](https://app.codecov.io/gh/zilliztech/GPTCache/pull/460?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=zilliztech#diff-Z3B0Y2FjaGUvc2ltaWxhcml0eV9ldmFsdWF0aW9uL29ubngucHk=) | `95.83% <100.00%> (ø)` | | | [gptcache/utils/softmax.py](https://app.codecov.io/gh/zilliztech/GPTCache/pull/460?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=zilliztech#diff-Z3B0Y2FjaGUvdXRpbHMvc29mdG1heC5weQ==) | `100.00% <100.00%> (ø)` | |