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Changed math.nim tests to use newly defined ==~ operator

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This commit is contained in:
A. S. Budden 2016-05-31 15:53:18 +01:00
commit 695b25100c
1 changed files with 24 additions and 24 deletions
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48
lib/pure/math.nim
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@ -393,34 +393,34 @@ when isMainModule and not defined(JS):
assert(erfc(6.0) < erfc(5.0))
when isMainModule:
# Function for approximate comparison of floats
proc floatIsEqual(x, y: float): bool = (abs(x-y) < 1e-9)
proc `==~`(x, y: float): bool = (abs(x-y) < 1e-9)
block: # round() tests
# Round to 0 decimal places
doAssert floatIsEqual(round(54.652), 55.0)
doAssert floatIsEqual(round(54.352), 54.0)
doAssert floatIsEqual(round(-54.652), -55.0)
doAssert floatIsEqual(round(-54.352), -54.0)
doAssert floatIsEqual(round(0.0), 0.0)
doAssert round(54.652) ==~ 55.0
doAssert round(54.352) ==~ 54.0
doAssert round(-54.652) ==~ -55.0
doAssert round(-54.352) ==~ -54.0
doAssert round(0.0) ==~ 0.0
# Round to positive decimal places
doAssert floatIsEqual(round(-547.652, 1), -547.7)
doAssert floatIsEqual(round(547.652, 1), 547.7)
doAssert floatIsEqual(round(-547.652, 2), -547.65)
doAssert floatIsEqual(round(547.652, 2), 547.65)
doAssert round(-547.652, 1) ==~ -547.7
doAssert round(547.652, 1) ==~ 547.7
doAssert round(-547.652, 2) ==~ -547.65
doAssert round(547.652, 2) ==~ 547.65
# Round to negative decimal places
doAssert floatIsEqual(round(547.652, -1), 550.0)
doAssert floatIsEqual(round(547.652, -2), 500.0)
doAssert floatIsEqual(round(547.652, -3), 1000.0)
doAssert floatIsEqual(round(547.652, -4), 0.0)
doAssert floatIsEqual(round(-547.652, -1), -550.0)
doAssert floatIsEqual(round(-547.652, -2), -500.0)
doAssert floatIsEqual(round(-547.652, -3), -1000.0)
doAssert floatIsEqual(round(-547.652, -4), 0.0)
doAssert round(547.652, -1) ==~ 550.0
doAssert round(547.652, -2) ==~ 500.0
doAssert round(547.652, -3) ==~ 1000.0
doAssert round(547.652, -4) ==~ 0.0
doAssert round(-547.652, -1) ==~ -550.0
doAssert round(-547.652, -2) ==~ -500.0
doAssert round(-547.652, -3) ==~ -1000.0
doAssert round(-547.652, -4) ==~ 0.0
block: # splitDecimal() tests
doAssert floatIsEqual(splitDecimal(54.674).intpart, 54.0)
doAssert floatIsEqual(splitDecimal(54.674).floatpart, 0.674)
doAssert floatIsEqual(splitDecimal(-693.4356).intpart, -693.0)
doAssert floatIsEqual(splitDecimal(-693.4356).floatpart, -0.4356)
doAssert floatIsEqual(splitDecimal(0.0).intpart, 0.0)
doAssert floatIsEqual(splitDecimal(0.0).floatpart, 0.0)
doAssert splitDecimal(54.674).intpart ==~ 54.0
doAssert splitDecimal(54.674).floatpart ==~ 0.674
doAssert splitDecimal(-693.4356).intpart ==~ -693.0
doAssert splitDecimal(-693.4356).floatpart ==~ -0.4356
doAssert splitDecimal(0.0).intpart ==~ 0.0
doAssert splitDecimal(0.0).floatpart ==~ 0.0