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require "spec_helper"
require "chef/config_fetcher"
describe Chef::ConfigFetcher do
let(:valid_json) { Chef::JSONCompat.to_json({ a: "b" }) }
let(:invalid_json) { %q[{"syntax-error": "missing quote}] }
let(:http) { double("Chef::HTTP::Simple") }
let(:config_location_regex) { Regexp.escape(config_location) }
let(:invalid_json_error_regex) { /Could not parse the provided JSON file \(#{config_location_regex}\)/ }
let(:fetcher) { Chef::ConfigFetcher.new(config_location) }
context "when loading a local file" do
let(:config_location) { "/etc/chef/client.rb" }
let(:config_content) { "# The client.rb content" }
it "reads the file from disk" do
expect(::File).to receive(:read)
.with(config_location)
.and_return(config_content)
expect(fetcher.read_config).to eq(config_content)
end
it "gives the expanded path to the config file" do
expect(fetcher.expanded_path).to eq(File.expand_path(config_location))
end
context "with a relative path" do
let(:config_location) { "client.rb" }
it "gives the expanded path to the config file" do
expected = File.join(Dir.pwd, config_location)
expect(fetcher.expanded_path).to eq(expected)
end
end
context "and consuming JSON" do
let(:config_location) { "/etc/chef/first-boot.json" }
it "returns the parsed JSON" do
expect(::File).to receive(:read)
.with(config_location)
.and_return(valid_json)
expect(fetcher.fetch_json).to eq({ "a" => "b" })
end
context "and the JSON is invalid" do
it "reports the JSON error" do
expect(::File).to receive(:read)
.with(config_location)
.and_return(invalid_json)
expect(Chef::Application).to receive(:fatal!)
.with(invalid_json_error_regex)
fetcher.fetch_json
end
end
end
end
context "with an HTTP URL config location" do
let(:config_location) { "https://example.com/client.rb" }
let(:config_content) { "# The client.rb content" }
it "returns the config location unchanged for #expanded_path" do
expect(fetcher.expanded_path).to eq(config_location)
end
describe "reading the file" do
before do
expect(Chef::HTTP::Simple).to receive(:new)
.with(config_location)
.and_return(http)
end
it "reads the file over HTTP" do
expect(http).to receive(:get)
.with("").and_return(config_content)
expect(fetcher.read_config).to eq(config_content)
end
context "and consuming JSON" do
let(:config_location) { "https://example.com/foo.json" }
it "fetches the file and parses it" do
expect(http).to receive(:get)
.with("").and_return(valid_json)
expect(fetcher.fetch_json).to eq({ "a" => "b" })
end
context "and the JSON is invalid" do
it "reports the JSON error" do
expect(http).to receive(:get)
.with("").and_return(invalid_json)
expect(Chef::Application).to receive(:fatal!)
.with(invalid_json_error_regex)
fetcher.fetch_json
end
end
end
end
end
context "with a nil config file argument" do
let(:config_location) { nil }
it "returns the config location unchanged for #expanded_path" do
expect(fetcher.expanded_path).to eq(nil)
end
end
end
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