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-rw-r--r--spec/ruby/library/bigdecimal/zero_spec.rb27
1 files changed, 27 insertions, 0 deletions
diff --git a/spec/ruby/library/bigdecimal/zero_spec.rb b/spec/ruby/library/bigdecimal/zero_spec.rb
new file mode 100644
index 0000000000..2563210939
--- /dev/null
+++ b/spec/ruby/library/bigdecimal/zero_spec.rb
@@ -0,0 +1,27 @@
+require_relative '../../spec_helper'
+require 'bigdecimal'
+
+describe "BigDecimal#zero?" do
+
+ it "returns true if self does equal zero" do
+ really_small_zero = BigDecimal("0E-200000000")
+ really_big_zero = BigDecimal("0E200000000000")
+ really_small_zero.should.zero?
+ really_big_zero.should.zero?
+ BigDecimal("0.000000000000000000000000").should.zero?
+ BigDecimal("0").should.zero?
+ BigDecimal("0E0").should.zero?
+ BigDecimal("+0").should.zero?
+ BigDecimal("-0").should.zero?
+ end
+
+ it "returns false otherwise" do
+ BigDecimal("0000000001").should_not.zero?
+ BigDecimal("2E40001").should_not.zero?
+ BigDecimal("3E-20001").should_not.zero?
+ BigDecimal("Infinity").should_not.zero?
+ BigDecimal("-Infinity").should_not.zero?
+ BigDecimal("NaN").should_not.zero?
+ end
+
+end