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require "PATH"
describe PATH do
describe "#initialize" do
it "can take multiple arguments" do
expect(described_class.new("/path1", "/path2")).to eq("/path1:/path2")
end
it "can parse a mix of arrays and arguments" do
expect(described_class.new(["/path1", "/path2"], "/path3")).to eq("/path1:/path2:/path3")
end
it "splits an existing PATH" do
expect(described_class.new("/path1:/path2")).to eq(["/path1", "/path2"])
end
it "removes duplicates" do
expect(described_class.new("/path1", "/path1")).to eq("/path1")
end
end
describe "#to_ary" do
it "returns a PATH array" do
expect(described_class.new("/path1", "/path2").to_ary).to eq(["/path1", "/path2"])
end
end
describe "#to_str" do
it "returns a PATH string" do
expect(described_class.new("/path1", "/path2").to_str).to eq("/path1:/path2")
end
end
describe "#prepend" do
it "prepends a path to a PATH" do
expect(described_class.new("/path1").prepend("/path2").to_str).to eq("/path2:/path1")
end
it "removes duplicates" do
expect(described_class.new("/path1").prepend("/path1").to_str).to eq("/path1")
end
end
describe "#append" do
it "prepends a path to a PATH" do
expect(described_class.new("/path1").append("/path2").to_str).to eq("/path1:/path2")
end
it "removes duplicates" do
expect(described_class.new("/path1").append("/path1").to_str).to eq("/path1")
end
end
describe "#insert" do
it "inserts a path at a given index" do
expect(described_class.new("/path1").insert(0, "/path2").to_str).to eq("/path2:/path1")
end
it "can insert multiple paths" do
expect(described_class.new("/path1").insert(0, "/path2", "/path3")).to eq("/path2:/path3:/path1")
end
end
describe "#include?" do
it "returns true if a path is included" do
path = described_class.new("/path1", "/path2")
expect(path).to include("/path1")
expect(path).to include("/path2")
end
it "returns false if a path is not included" do
expect(described_class.new("/path1")).not_to include("/path2")
end
it "returns false if the given string contains a separator" do
expect(described_class.new("/path1", "/path2")).not_to include("/path1:")
end
end
describe "#each" do
it "loops through each path" do
enum = described_class.new("/path1", "/path2").each
expect(enum.next).to eq("/path1")
expect(enum.next).to eq("/path2")
end
end
describe "#select" do
it "returns an object of the same class instead of an Array" do
expect(described_class.new.select { true }).to be_a(described_class)
end
end
describe "#reject" do
it "returns an object of the same class instead of an Array" do
expect(described_class.new.reject { true }).to be_a(described_class)
end
end
describe "#existing" do
it "returns a new PATH without non-existent paths" do
allow(File).to receive(:directory?).with("/path1").and_return(true)
allow(File).to receive(:directory?).with("/path2").and_return(false)
path = described_class.new("/path1", "/path2")
expect(path.existing.to_ary).to eq(["/path1"])
expect(path.to_ary).to eq(["/path1", "/path2"])
end
it "returns nil instead of an empty #{described_class}" do
expect(described_class.new.existing).to be nil
end
end
end
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