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name: "fp_math"
description: "Tests for floating-point math."
section {
name: "fp_math"
description: "Simple tests for floating point."
test {
name: "add_positive_positive"
expr: "4.25 + 15.25"
value: { double_value: 19.5 }
}
test {
name: "add_positive_negative"
expr: "17.75 + (-7.75)"
value: { double_value: 10 }
}
test {
name: "add_negative_negative"
expr: "-4.125 + (-2.125)"
value: { double_value: -6.25 }
}
test {
name: "sub_positive_positive"
expr: "42.0 - 12.0"
value: { double_value: 30 }
}
test {
name: "sub_positive_negative"
expr: "42.875 - (-22.0)"
value: { double_value: 64.875 }
}
test {
name: "sub_negative_negative"
expr: "-4.875 - (-0.125)"
value: { double_value: -4.75 }
}
test {
name: "multiply_positive_positive"
expr: "42.5 * 0.2"
value: { double_value: 8.5 }
}
test {
name: "multiply_positive_negative"
expr: "40.75 * (-2.25)"
value: { double_value: -91.6875 }
}
test {
name: "multiply_negative_negative"
expr: "-3.0 * (-2.5)"
value: { double_value: 7.5 }
}
test {
name: "divide_positive_positive"
expr: "0.0625 / 0.002"
value: { double_value: 31.25 }
}
test {
name: "divide_positive_negative"
expr: "-2.0 / 2.0"
value: { double_value: -1 }
}
test {
name: "divide_negative_negative"
expr: "-8.875 / (-0.0625)"
value: { double_value: 142 }
}
test {
name: "mod_not_support"
expr: "47.5 % 5.5"
disable_check: true
eval_error: {
errors: { message:"found no matching overload for '_%_' applied to '(double, double)'" }
}
}
test {
name: "negative"
expr: "-(4.5)"
value: { double_value: -4.5 }
}
test {
name: "double_negative"
expr: "-(-1.25)"
value: { double_value: 1.25 }
}
test {
name: "negative_zero"
expr: "-(0.0)"
value: { double_value: -0.0 }
}
test {
name: "divide_zero"
expr: "15.75 / 0.0"
value: { double_value: Infinity }
}
test {
name: "multiply_zero"
expr: "15.36 * 0.0"
value: { double_value: 0 }
}
test {
name: "add_left_identity"
expr: "0.0 + 1.75"
value: { double_value: 1.75}
}
test {
name: "add_right_identity"
expr: " 2.5 + 0.0"
value: { double_value: 2.5 }
}
test {
name: "add_commutative"
expr: "7.5 + 1.5 == 1.5 + 7.5"
value: { bool_value: true }
}
test {
name: "add_associative"
expr: "5.625 + (15.75 + 2.0) == (5.625 + 15.75) + 2.0"
value: { bool_value: true }
}
test {
name: "mul_left_identity"
expr: "1.0 * 45.25"
value: { double_value: 45.25 }
}
test {
name: "mul_right_identity"
expr: "-25.25 * 1.0"
value: { double_value: -25.25 }
}
test {
name: "mul_commutative"
expr: "1.5 * 25.875 == 25.875 * 1.5"
value: { bool_value: true }
}
test {
name: "mul_associative"
expr: "1.5 * (23.625 * 0.75) == (1.5 * 23.625) * 0.75"
value: { bool_value: true }
}
test {
name: "add_mul_distribute"
expr: "5.75 * (1.5 + 2.5) == 5.75 * 1.5 + 5.75 * 2.5"
## overflow or underflow may cause this not equal.
value: { bool_value: true }
}
test {
name: "fp_overflow_positive"
description: "DBL_MAX(2^1023) times two"
expr: "2.0 * 8.988466e+307 "
value: {double_value: inf}
}
test {
name: "fp_overflow_negative"
description: "-DBL_MAX(-2^1023) times two"
expr: "2.0 * -8.988466e+307 "
value: {double_value: -inf}
}
test {
name: "fp_underflow"
description: "DBL_MIN(2^-1074) divided by two"
expr: "1e-324 / 2.0"
## Expect it to be the closest number to the exact result.
value: {double_value: 0}
}
}
|
