/opennet-qa-manual-engineer-assignment

opennet-qa-manual-engineer-assignment

Requirements

  • waydroid (since I am using Linux host for testing)

Test cases

basic (RAD)

  • plus
    • 1 + 2 ?= 3
    • 0.1 + 0.2 ?= 0.3
    • (-1) + (-3) ?= -4
    • (-1) + 3 ?= 2
    • 2^31 - 1 + 1 (overflow?)
    • 2^64 - 1 + 1 (overflow?)
  • minus
    • 5 - 3 ?= 2
    • 0.2 - 0.2 ?= 0
    • 4 - (-4) ?= 8
    • (-4) - 5 ?= -9
    • 2^(-31) - 1 (overflow?)
    • 2^(-64) - 1 (overflow?)
  • multiplication
    • 3 * 4 ?= 12
    • 0 * 5 ?= 0
  • division
    • 2 / 3 ?= 0.6...
    • 7 / 2 ?= 3.5
    • -1 / -1 ?= 1
    • 12 / (-4) ?= -3
    • 11 / 0 ?= (something invalid)
  • calculation precedence
    • 2^64 * 2^64 ?= 2^128
    • 3 * (4 + 5) ?= 27
    • (2 / (1 * (42 /21))) ?= 1
  • sin
    • sin(0) ?= 0
    • sin(pi / 2) ?= 1
    • sin(pi) ?= 0
    • sin(2 pi) ?= 0
  • cos
    • cos(0) ?= 1
    • cos(pi / 2) ?= 0
    • cos(pi) ?= -1
    • cos(2 pi) ?= 1
  • tan
    • tan(0) ?= 0
    • tan(pi / 2) ?= INF
    • tan(pi) ?= 0
    • tan(2 pi) ?= 0
  • ln
    • ln(10) ?= 2.3025...
    • ln(e) ?= 1
    • ln(1) ?= 0
    • ln(0) ?= (something invalid)
    • ln(-3.3) ?= (something invalid)
  • log
    • log(100) ?= 2
    • log(4) ?= 0.6020...
    • log(1) ?= 0
    • log(0) ?= (something invalid)
    • log(-3) ?= (something invalid)
  • factorial
    • 5! ?= 120
    • 1! ?= 1
    • 32! ?= ...
    • 0! ?= 1
    • !3 ?= (something invalid)
  • pi
    • pi ?= 3.1415...
    • 2 pi / pi ?= 2
    • 2 pi * 2 pi ?= 4 pi^2
    • pi 3 ?= 3 * pi
  • exp
    • e ?= 2.7182...
    • e 2 ?= 2 * 2
    • e / (4 * e) ?= 0.25
  • power
    • 2^3 ?= 8
    • (-1)^3 ?= -1
    • 0^3 ?= 0
    • -2^3 ?= -8
    • 3^(-1) ?= 0.3...
    • 0^0 ?= (something invalid) (X)
    • 10^(10^10) ?= 10^1000 (X)
  • square root
    • sqrt(25) ?= 5
    • sqrt(2) ?= 1.414...
    • sqrt(-1) ?= (something invalid)
  • percentage
    • 6% ?= 0.06
    • -1% ?= -0.01
    • 0% ?= 0
    • 0.1% ?= 0.001
    • %3 ?= (something invalid)

INV (when pressed)

  • sin -> arcsin
  • cos -> arccos
  • tan -> arctan
  • ln -> e^x
  • log -> 10^x
  • sqrt -> x^2
  • 3 * (-4(5 - 6)) ?= 12

INV

  • arcsin
    • arcsin(-1) ?= - pi / 2
    • arcsin(1) ?= pi / 2
    • arcsin(-2) ?= (something invalid)
    • arcsin(1.001) ?= (something invalid)
  • arccos
    • arccos(-1) ?= pi
    • arccos(1) ?= 0
    • arccos(-2) ?= (something invalid)
    • arccos(1.001) ?= (something invalid)
  • arctan
    • arctan(-1) ?= -0.785398163...
    • arctan(1) ?= 0.785398163...
  • e^x
    • e^1 ?= e
    • e^-2 ?= 1 / e^2
    • e^0 ?= 1
  • 10^x
    • 10^2 ?= 100
    • 10^0 ?= 1
    • 10^-4 ?= 0.0001
    • 10^(10^10) ?= 10^100 (X)
    • 3 * 10^3 ?= 3000
  • x^2
    • 2^2 ?= 4
    • 1.1^2 ?= 1.21
    • -1^2 ?= -1
    • (-3)^2 ?= 9

RAD -> DEG

  • The top-left corner should flash "DEG"
  • (4 / 5) * -3 ?= -2.4

DEG

  • sin
    • sin(0) ?= 0
    • sin(30) ?= 0.5
  • cos
    • cos(60) ?= 0.5
    • cos(90) ?= 0
  • tan
    • tan(45) ?= 1
    • tan(90) ?= INF
  • arcsin
    • arcsin(-1) ?= -90
    • arcsin(1) ?= 90
    • arcsin(-2) ?= (something invalid)
  • arccos
    • arccos(-1) ?= 180
    • arccos(1) ?= 0
    • arccos(1.001) ?= (something invalid)
  • arctan
    • arctan(-1) ?= -45
    • arctan(1) ?= 45

MISC

  • clear (C)
  • backspace

Problems I found

  • 0^0
    • Get 1. Should be "(something invalid)"
  • 10^(10^10)
    • Get timeout. Should get 10^1000
  • 10^(10^10)
    • Get timeout. Should get 10^100