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describe :env_update, shared: true do
before :each do
@saved_foo = ENV["foo"]
@saved_bar = ENV["bar"]
end
after :each do
ENV["foo"] = @saved_foo
ENV["bar"] = @saved_bar
end
it "adds the parameter hash to ENV" do
ENV.send @method, {"foo" => "0", "bar" => "1"}
ENV["foo"].should == "0"
ENV["bar"].should == "1"
end
it "returns ENV when no block given" do
ENV.send(@method, {"foo" => "0", "bar" => "1"}).should equal(ENV)
end
it "yields key, the old value and the new value when replacing entries" do
ENV.send @method, {"foo" => "0", "bar" => "3"}
a = []
ENV.send @method, {"foo" => "1", "bar" => "4"} do |key, old, new|
a << [key, old, new]
(new.to_i + 1).to_s
end
ENV["foo"].should == "2"
ENV["bar"].should == "5"
a[0].should == ["foo", "0", "1"]
a[1].should == ["bar", "3", "4"]
end
it "returns ENV when block given" do
ENV.send(@method, {"foo" => "0", "bar" => "1"}){}.should equal(ENV)
end
it "raises TypeError when a name is not coercible to String" do
-> { ENV.send @method, Object.new => "0" }.should raise_error(TypeError, "no implicit conversion of Object into String")
end
it "raises TypeError when a value is not coercible to String" do
-> { ENV.send @method, "foo" => Object.new }.should raise_error(TypeError, "no implicit conversion of Object into String")
end
it "updates good data preceding an error" do
ENV["foo"] = "0"
begin
ENV.send @method, {"foo" => "2", Object.new => "1"}
rescue TypeError
ensure
ENV["foo"].should == "2"
end
end
it "does not update good data following an error" do
ENV["foo"] = "0"
begin
ENV.send @method, {Object.new => "1", "foo" => "2"}
rescue TypeError
ensure
ENV["foo"].should == "0"
end
end
end
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