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# frozen_string_literal: true
RSpec.describe RGhost::Which do
subject(:which) { described_class.new(env: fake_env) }
let(:fake_env) { {"PATH" => path.join(File::PATH_SEPARATOR)} }
let(:path) { ["/tmp/fake_dir"] }
let(:project_root_dir) { Pathname(__dir__).join("../..") }
let(:fixture_path) { project_root_dir.join("spec/fixtures").to_path }
it "finds the executable when it exists on the first entry in $PATH" do
path.prepend(fixture_path)
expect(which.call("sweet")).to eq(project_root_dir.join("spec/fixtures/sweet").to_path)
end
it "does not find the executable when the file does not have execute permissions" do
path.prepend(fixture_path)
expect(which.call("sweet_non_exe")).to be_nil
end
it "finds the executable when it exists on a middle entry in $PATH" do
path.prepend(fixture_path)
path.prepend("/tmp/some/other/path")
expect(which.call("sweet")).to eq(project_root_dir.join("spec/fixtures/sweet").to_path)
end
it "finds the executable when it exists on the last entry in $PATH" do
path.prepend("/tmp/some/other/path")
path.append(fixture_path)
expect(which.call("sweet")).to eq(project_root_dir.join("spec/fixtures/sweet").to_path)
end
it "does not find the executable when the file is not in $PATH" do
expect(which.call("sweet")).to be_nil
end
it "finds the executable when an absolute path is given" do
absolute_path = project_root_dir.join("spec/fixtures/sweet").to_path
expect(which.call(absolute_path)).to eq(absolute_path)
end
context "on Windows" do
before do
path.prepend(fixture_path)
fake_env["PATHEXT"] = ".exe;.bat;.cmd"
end
it "finds the executable with the extensions defined by $PATHEXT" do
expect(which.call("sweet_win")).to eq(project_root_dir.join("spec/fixtures/sweet_win.bat").to_path)
end
end
end
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