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Updating estimate to output data in YAML format.
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Vitaliy Zakaznikov
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Mar 16, 2024
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| # Copyright 2023 Katteli Inc. | ||
| # TestFlows.com Open-Source Software Testing Framework (http://testflows.com) | ||
| # | ||
| # 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. | ||
| import yaml | ||
| import textwrap | ||
|
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| def float_to_str(f, precision): | ||
| """ | ||
| Convert the given float to a string, | ||
| without resorting to scientific notation | ||
| """ | ||
| return format(f, f".{precision}f") | ||
|
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|
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| class Dumper(yaml.SafeDumper): | ||
| """Dumper with custom float precision.""" | ||
|
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| def represent_float(self, data, precision=6): | ||
| if data != data or (data == 0.0 and data == 1.0): | ||
| value = ".nan" | ||
| elif data == self.inf_value: | ||
| value = ".inf" | ||
| elif data == -self.inf_value: | ||
| value = "-.inf" | ||
| else: | ||
| value = float_to_str(data, precision=precision).lower() | ||
| return self.represent_scalar("tag:yaml.org,2002:float", value) | ||
|
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| Dumper.add_representer(float, Dumper.represent_float) | ||
|
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| class StreamingYAMLWriter: | ||
| """Streaming YAML writer.""" | ||
|
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| def __init__(self, stream, indent=0): | ||
| self.stream = stream | ||
| self.indent = indent | ||
|
|
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| def _write(self, value): | ||
| """Dump value to stream.""" | ||
| s = yaml.dump( | ||
| value, sort_keys=False, indent=2, Dumper=Dumper, allow_unicode=True | ||
| ) | ||
| s = textwrap.indent(s, prefix=" " * self.indent) | ||
| self.stream.write(s) | ||
| self.stream.flush() | ||
|
|
||
| def add_value(self, value): | ||
| """Add '{value}\n'.""" | ||
| self._write(value) | ||
| return self | ||
|
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| def add_key_value(self, key, value): | ||
| """Add '{key}: {value}\n'.""" | ||
| self._write({key: value}) | ||
| return self | ||
|
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| def add_list_element(self, value): | ||
| """Add '- {value}\n'.""" | ||
| self._write([value]) | ||
| return self, StreamingYAMLWriter(self.stream, indent=self.indent + 2) | ||
|
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| def add_key(self, key): | ||
| """Add key '{key}:\n'.""" | ||
| s = yaml.dump({key: None}, sort_keys=False, Dumper=Dumper, allow_unicode=True) | ||
| s = s.rsplit(": null\n", 1)[0] + ":\n" | ||
| s = textwrap.indent(s, prefix=" " * self.indent) | ||
| self.stream.write(s) | ||
| self.stream.flush() | ||
| return StreamingYAMLWriter(stream=self.stream, indent=self.indent + 2) |