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96 lines
2.5 KiB
Ruby
96 lines
2.5 KiB
Ruby
require_relative '../../spec_helper'
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require_relative 'fixtures/classes'
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# FIXME: These methods exist only when the -n or -p option is passed to
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# ruby, but we currently don't have a way of specifying that.
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ruby_version_is ""..."1.9" do
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describe "Kernel#gsub" do
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it "is a private method" do
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Kernel.should have_private_instance_method(:gsub)
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end
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it "raises a TypeError if $_ is not a String" do
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-> {
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$_ = 123
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gsub(/./, "!")
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}.should raise_error(TypeError)
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end
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it "when matches sets $_ to a new string, leaving the former value unaltered" do
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orig_value = $_ = "hello"
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gsub("ello", "ola")
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$_.should_not equal(orig_value)
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$_.should == "hola"
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orig_value.should == "hello"
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end
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it "returns a string with the same contents as $_ after the operation" do
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$_ = "bye"
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gsub("non-match", "?").should == "bye"
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orig_value = $_ = "bye"
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gsub(/$/, "!").should == "bye!"
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orig_value.should == "bye"
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end
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it "accepts Regexps as patterns" do
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$_ = "food"
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gsub(/.$/, "l")
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$_.should == "fool"
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end
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it "accepts Strings as patterns, treated literally" do
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$_ = "hello, world."
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gsub(".", "!")
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$_.should == "hello, world!"
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end
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it "accepts objects which respond to #to_str as patterns and treats them as strings" do
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$_ = "hello, world."
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stringlike = mock(".")
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stringlike.should_receive(:to_str).and_return(".")
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gsub(stringlike, "!")
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$_.should == "hello, world!"
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end
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end
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describe "Kernel#gsub with a pattern and replacement" do
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it "accepts strings for replacement" do
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$_ = "hello"
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gsub(/./, ".")
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$_.should == "....."
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end
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it "accepts objects which respond to #to_str for replacement" do
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o = mock("o")
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o.should_receive(:to_str).and_return("o")
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$_ = "ping"
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gsub("i", o)
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$_.should == "pong"
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end
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it "replaces \\1 sequences with the regexp's corresponding capture" do
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$_ = "hello!"
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gsub(/(.)(.)/, '\2\1')
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$_.should == "ehll!o"
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end
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end
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describe "Kernel#gsub with pattern and block" do
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it "acts similarly to using $_.gsub" do
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$_ = "olleh dlrow"
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gsub(/(\w+)/){ $1.reverse }
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$_.should == "hello world"
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end
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end
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describe "Kernel#gsub!" do
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it "is a private method" do
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Kernel.should have_private_instance_method(:gsub!)
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end
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end
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describe "Kernel.gsub!" do
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it "needs to be reviewed for spec completeness"
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end
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end
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