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require "spec_helper"
describe Dotenv do
before do
Dir.chdir(File.expand_path("../fixtures", __FILE__))
end
shared_examples "load" do
context "with no args" do
let(:env_files) { [] }
it "defaults to .env" do
expect(Dotenv::Environment).to receive(:new).with(expand(".env"),
anything)
.and_return(double(apply: {}, apply!: {}))
subject
end
end
context "with a tilde path" do
let(:env_files) { ["~/.env"] }
it "expands the path" do
expected = expand("~/.env")
allow(File).to receive(:exist?) { |arg| arg == expected }
expect(Dotenv::Environment).to receive(:new).with(expected, anything)
.and_return(double(apply: {}, apply!: {}))
subject
end
end
context "with multiple files" do
let(:env_files) { [".env", fixture_path("plain.env")] }
let(:expected) do
{ "OPTION_A" => "1",
"OPTION_B" => "2",
"OPTION_C" => "3",
"OPTION_D" => "4",
"OPTION_E" => "5",
"PLAIN" => "true",
"DOTENV" => "true" }
end
it "loads all files" do
subject
expected.each do |key, value|
expect(ENV[key]).to eq(value)
end
end
it "returns hash of loaded environments" do
expect(subject).to eq(expected)
end
end
end
describe "load" do
let(:env_files) { [] }
subject { Dotenv.load(*env_files) }
it_behaves_like "load"
it "initializes the Environment with a truthy is_load" do
expect(Dotenv::Environment).to receive(:new).with(anything, true)
.and_return(double(apply: {}, apply!: {}))
subject
end
context "when the file does not exist" do
let(:env_files) { [".env_does_not_exist"] }
it "fails silently" do
expect { subject }.not_to raise_error
expect(ENV.keys).to eq(@env_keys)
end
end
end
describe "load!" do
let(:env_files) { [] }
subject { Dotenv.load!(*env_files) }
it_behaves_like "load"
it "initializes Environment with truthy is_load" do
expect(Dotenv::Environment).to receive(:new).with(anything, true)
.and_return(double(apply: {}, apply!: {}))
subject
end
context "when one file exists and one does not" do
let(:env_files) { [".env", ".env_does_not_exist"] }
it "raises an Errno::ENOENT error" do
expect { subject }.to raise_error(Errno::ENOENT)
end
end
end
describe "overload" do
let(:env_files) { [fixture_path("plain.env")] }
subject { Dotenv.overload(*env_files) }
it_behaves_like "load"
it "initializes the Environment with a falsey is_load" do
expect(Dotenv::Environment).to receive(:new).with(anything, false)
.and_return(double(apply: {}, apply!: {}))
subject
end
context "when loading a file containing already set variables" do
let(:env_files) { [fixture_path("plain.env")] }
it "overrides any existing ENV variables" do
ENV["OPTION_A"] = "predefined"
subject
expect(ENV["OPTION_A"]).to eq("1")
end
end
context "when the file does not exist" do
let(:env_files) { [".env_does_not_exist"] }
it "fails silently" do
expect { subject }.not_to raise_error
expect(ENV.keys).to eq(@env_keys)
end
end
end
describe "with an instrumenter" do
let(:instrumenter) { double("instrumenter", instrument: {}) }
before { Dotenv.instrumenter = instrumenter }
after { Dotenv.instrumenter = nil }
describe "load" do
it "instruments if the file exists" do
expect(instrumenter).to receive(:instrument) do |name, payload|
expect(name).to eq("dotenv.load")
expect(payload[:env]).to be_instance_of(Dotenv::Environment)
{}
end
Dotenv.load
end
it "does not instrument if file does not exist" do
expect(instrumenter).to receive(:instrument).never
Dotenv.load ".doesnotexist"
end
end
end
describe "Unicode" do
subject { fixture_path("bom.env") }
it "loads a file with a Unicode BOM" do
expect(Dotenv.load(subject)).to eql("BOM" => "UTF-8")
end
it "fixture file has UTF-8 BOM" do
contents = File.open(subject, "rb", &:read).force_encoding("UTF-8")
expect(contents).to start_with("\xEF\xBB\xBF".force_encoding("UTF-8"))
end
end
def expand(path)
File.expand_path path
end
end
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