brew/Library/Homebrew/test/utils/popen_spec.rb
2017-02-19 18:41:53 +01:00

29 lines
756 B
Ruby

require "utils/popen"
describe Utils do
describe "::popen_read" do
it "reads the standard output of a given command" do
expect(subject.popen_read("sh", "-c", "echo success").chomp).to eq("success")
expect($?).to be_a_success
end
it "can be given a block to manually read from the pipe" do
expect(
subject.popen_read("sh", "-c", "echo success") do |pipe|
pipe.read.chomp
end,
).to eq("success")
expect($?).to be_a_success
end
end
describe "::popen_write" do
it "with supports writing to a command's standard input" do
subject.popen_write("grep", "-q", "success") do |pipe|
pipe.write("success\n")
end
expect($?).to be_a_success
end
end
end