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70 lines
1.7 KiB
Ruby
70 lines
1.7 KiB
Ruby
require_relative '../../spec_helper'
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require 'bigdecimal'
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describe "BigDecimal constants" do
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it "defines a VERSION value" do
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BigDecimal.const_defined?(:VERSION).should be_true
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end
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it "has a BASE value" do
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# The actual one is decided based on HAVE_INT64_T in MRI,
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# which is hard to check here.
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[10000, 1000000000].should include(BigDecimal::BASE)
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end
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it "has a NaN value" do
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BigDecimal::NAN.nan?.should be_true
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end
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it "has an INFINITY value" do
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BigDecimal::INFINITY.infinite?.should == 1
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end
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describe "exception-related constants" do
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[
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[:EXCEPTION_ALL, 0xff],
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[:EXCEPTION_INFINITY, 0x01],
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[:EXCEPTION_NaN, 0x02],
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[:EXCEPTION_UNDERFLOW, 0x04],
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[:EXCEPTION_OVERFLOW, 0x01],
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[:EXCEPTION_ZERODIVIDE, 0x10]
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].each do |const, value|
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it "has a #{const} value" do
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BigDecimal.const_get(const).should == value
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end
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end
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end
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describe "rounding-related constants" do
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[
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[:ROUND_MODE, 0x100],
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[:ROUND_UP, 1],
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[:ROUND_DOWN, 2],
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[:ROUND_HALF_UP, 3],
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[:ROUND_HALF_DOWN, 4],
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[:ROUND_CEILING, 5],
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[:ROUND_FLOOR, 6],
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[:ROUND_HALF_EVEN, 7]
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].each do |const, value|
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it "has a #{const} value" do
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BigDecimal.const_get(const).should == value
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end
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end
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end
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describe "sign-related constants" do
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[
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[:SIGN_NaN, 0],
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[:SIGN_POSITIVE_ZERO, 1],
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[:SIGN_NEGATIVE_ZERO, -1],
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[:SIGN_POSITIVE_FINITE, 2],
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[:SIGN_NEGATIVE_FINITE, -2],
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[:SIGN_POSITIVE_INFINITE, 3],
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[:SIGN_NEGATIVE_INFINITE, -3]
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].each do |const, value|
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it "has a #{const} value" do
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BigDecimal.const_get(const).should == value
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end
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end
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end
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end
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