ruby.git/test/ruby/test_rational.rb, branch v4.0.4

Fix tests using assert_raise_with_message on US-ASCII systems

2025-08-16T02:42:07+00:00

On systems where the Encoding.default_internal defaults to US-ASCII instead
of UTF-8, some tests using assert_raise_with_message can fail since it no
longer changes Encoding.default_internal in 79f5202.

This tests explicitly uses EnvUtil.with_default_internal on systems where
these tests fail.

Do not round `a**b` to infinity

2024-11-08T10:48:56+00:00

... instead, just calculate the value unless it is too big.
Also, this change raises an ArgumentError if it is expected to exceed
16 GB in a 64-bit environment.

(It is possible to calculate it straightforward, but it would likely be
out-of-memory, so I didn't think it would make sense.)

[Feature #20811]

A negative denominator case in the Rational string parsing test

2022-12-10T09:57:20+00:00

test_cdhash: refactor change class

2021-05-12T01:30:46+00:00

It is now strange to test Complex in a class named Rational_Test.

cdhash_cmp: can also take complex

2021-05-12T01:30:46+00:00

There are complex literals `123i`, which can also be a case condition.

cdhash_cmp: rational literals with fractions

2021-05-12T01:30:46+00:00

Nobu kindly pointed out that rational literals can have fractions.

cdhash_cmp: can take rational literals

2021-05-12T01:30:46+00:00

Rational literals are those integers suffixed with `r`.  They tend to
be a part of more complex expressions like `123/456r`, but in theory
they can live alone.  When such "bare" rational literals are passed to
case-when branch, we have to take care of them.  Fixes [Bug #17854]

Make reciprocal properly of non-integral rational [Bug #17572]

2021-01-23T01:30:59+00:00

test/ruby/test_rational.rb: Prevent "assigned but unused variable"

2020-10-27T15:27:56+00:00

rational.c: convert a numerator to rational before calling fdiv in Kernel.Rational() (#3702)

2020-10-26T09:43:30+00:00

This makes `Rational(BigDecimal(1), 60) == Rational(1, 60)`.
[Bug #16518]