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mymax: step 01, misstep

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`@@ -0,0 +1,23 @@`
	`1`	`+"""`
	`2`	+Q: Why not define ``Number`` as follows?
	`3`	`+`
	`4`	`+::`
	`5`	`+ Number = Union[float, Decimal, Fraction]`
	`6`	`+`
	`7`	`+`
	`8`	+A: Because ``Union`` is not helpful as a return type.
	`9`	`+`
	`10`	`+ "Be conservative in what you send, be liberal in what you accept."`
	`11`	`+ —Postel's Law`
	`12`	`+`
	`13`	`+"""`
	`14`	`+`
	`15`	`+fromdecimalimportDecimal`
	`16`	`+fromfractionsimportFraction`
	`17`	`+fromtypingimportUnion`
	`18`	`+`
	`19`	`+Number=Union[float,Decimal,Fraction]`
	`20`	`+`
	`21`	`+`
	`22`	`+defmax(a:Number,b:Number)->Number:`
	`23`	`+returnaifa>=belseb`

Lines changed: 39 additions & 0 deletions

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`@@ -0,0 +1,39 @@`
	`1`	`+fromdecimalimportDecimal`
	`2`	`+fromfractionsimportFraction`
	`3`	`+`
	`4`	`+importmymax`
	`5`	`+frommymaximportNumber`
	`6`	`+`
	`7`	`+importpytest`
	`8`	`+`
	`9`	`+`
	`10`	`+@pytest.mark.parametrize(`
	`11`	`+'a, b, expected',`
	`12`	`+ [`
	`13`	`+ (1,2,2),`
	`14`	`+ (-3,-1,-1),`
	`15`	`+ (4,4,4),`
	`16`	`+ ],`
	`17`	`+)`
	`18`	`+deftest_two_ints(a:int,b:int,expected:int)->None:`
	`19`	`+result=mymax.max(a,b)`
	`20`	`+assertresult==expected`
	`21`	`+`
	`22`	`+`
	`23`	`+deftest_two_numbers()->None:`
	`24`	`+result=mymax.max(Fraction(1,3),Fraction(1,4))`
	`25`	`+assertresult==Fraction(1,3)`
	`26`	`+`
	`27`	`+`
	`28`	`+@pytest.mark.parametrize(`
	`29`	`+'a, b, expected',`
	`30`	`+ [`
	`31`	`+ (1,2,2),`
	`32`	`+ (0.1,0.01,0.1),`
	`33`	`+ (Fraction(1,3),Fraction(1,2),Fraction(1,2)),`
	`34`	`+ (Decimal('-1.3'),Decimal('-1.2'),Decimal('-1.2')),`
	`35`	`+ ],`
	`36`	`+)`
	`37`	`+deftest_two_numbers_params(a:Number,b:Number,expected:Number)->None:`
	`38`	`+result=mymax.max(a,b)`
	`39`	`+assertresult==expected`

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	`1`	`+[mypy]`
	`2`	`+python_version = 3.9`
	`3`	`+warn_unused_configs = True`
	`4`	`+disallow_incomplete_defs = True`
	`5`	`+[mypy-pytest]`
	`6`	`+ignore_missing_imports = True`

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