1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
require_relative '../../spec_helper'
describe "ENV.delete" do
before :each do
@saved_foo = ENV["foo"]
end
after :each do
ENV["foo"] = @saved_foo
end
it "removes the variable from the environment" do
ENV["foo"] = "bar"
ENV.delete("foo")
ENV["foo"].should == nil
end
it "returns the previous value" do
ENV["foo"] = "bar"
ENV.delete("foo").should == "bar"
end
it "returns nil if the named environment variable does not exist and no block given" do
ENV.delete("foo")
ENV.delete("foo").should == nil
end
it "yields the name to the given block if the named environment variable does not exist" do
ENV.delete("foo")
ENV.delete("foo") { |name| ScratchPad.record name }
ScratchPad.recorded.should == "foo"
end
it "returns the result of given block if the named environment variable does not exist" do
ENV.delete("foo")
ENV.delete("foo") { |name| "bar" }.should == "bar"
end
it "does not evaluate the block if the environment variable exists" do
ENV["foo"] = "bar"
ENV.delete("foo") { |name| fail "Should not happen" }
ENV["foo"].should == nil
end
it "removes the variable coerced with #to_str" do
ENV["foo"] = "bar"
k = mock('key')
k.should_receive(:to_str).and_return("foo")
ENV.delete(k)
ENV["foo"].should == nil
end
it "raises TypeError if the argument is not a String and does not respond to #to_str" do
-> { ENV.delete(Object.new) }.should raise_error(TypeError, "no implicit conversion of Object into String")
end
end
|
