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test_fixed.mojo
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from testing import assert_equal, assert_true
from ccxt.base.types import *
from monoio_connect import *
fn test_empty_string() raises:
var p1 = Fixed("")
assert_equal(str(p1), "0")
fn test_initialization() raises:
var p1 = Fixed("123.456")
assert_equal(str(p1), "123.456")
var p2 = Fixed(123)
assert_equal(str(p2), "123")
fn test_addition() raises:
var p1 = Fixed("1.1")
var p2 = Fixed("2.2")
var result = p1 + p2
assert_equal(str(result), "3.3")
fn test_subtraction() raises:
var p1 = Fixed("5.5")
var p2 = Fixed("2.2")
var result = p1 - p2
assert_equal(str(result), "3.3")
fn test_multiplication() raises:
var p1 = Fixed("2.5")
var p2 = Fixed("4.0")
var result = p1 * p2
assert_equal(str(result), "10")
fn test_division() raises:
var p1 = Fixed("10.0")
var p2 = Fixed("2.0")
var result = p1 / p2
assert_equal(str(p1), "10")
assert_equal(str(p2), "2")
assert_equal(str(result), "5")
# 测试除后有小数
var p3 = Fixed("10.0")
var p4 = Fixed("3.0")
assert_equal(str(p3 / p4), "3.333333333333")
# 测试两个小数相除
var p5 = Fixed("1.2")
var p6 = Fixed("3.6")
assert_equal(str(p5 / p6), "0.333333333333")
fn test_modulus() raises:
var p1 = Fixed("5.5")
var p2 = Fixed("2.0")
# TODO: 添加对取模的支持
# var result = p1 % p2
# assert_equal(str(result), "1.5")
fn test_negation() raises:
var p1 = Fixed("3.5")
var result = -p1
assert_equal(str(result), "-3.5")
fn test_absolute() raises:
var p1 = Fixed("-3.5")
var result = abs(p1)
assert_equal(str(result), "3.5")
fn test_comparisons() raises:
var p1 = Fixed("1.0")
var p2 = Fixed("2.0")
assert_true(p1 < p2)
assert_true(p2 > p1)
assert_true(p1 <= p1)
assert_true(p1 >= p1)
assert_true(p1 != p2)
fn test_string_operations() raises:
assert_true(Fixed("1.1") + Fixed("2.2") == Fixed("3.3"))
assert_true(Fixed("5.5") - Fixed("2.2") == Fixed("3.3"))
assert_true(Fixed("2.5") * Fixed("4.0") == Fixed("10.0"))
assert_true(Fixed("10.0") / Fixed("20.0") == Fixed("0.5"))
var result = Fixed("10.0") / Fixed("2.0")
assert_equal(str(result), "5")
fn test_edge_cases() raises:
var p1 = Fixed("0.0")
var p2 = Fixed("0.0")
assert_equal(str(p1 + p2), "0")
assert_equal(str(p1 - p2), "0")
assert_equal(str(p1 * p2), "0")
# with assert_raises(contains="Integer Division by zero."):
# var result = Fixed("10.0") / Fixed("0.0")
# assert_equal(str(result), "0")
fn test_precise_string_conversion() raises:
var p1 = Fixed("1")
var p2 = Fixed(1)
assert_equal(str(p1), str(p2))
# 测试范围，最大: 999999.999999999999
fn test_max() raises:
var p1 = Fixed("999999.999999999999")
assert_equal(str(p1), "999999.999999999999")
var p2 = Fixed("111111.111111111111")
var p3 = p1 - p2
assert_equal(str(p3), "888888.888888888888")
var p4 = Fixed(3)
var p5 = p4 * p2
assert_equal(str(p5), "333333.333333333333")
var p6 = p5.to_float()
assert_equal(p6, 333333.333333333333)
var p7 = Fixed("-1.123456789012345678")
assert_equal(str(p7), "-1.123456789012")