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# frozen_string_literal: true
RSpec.describe TTY::Reader::Line do
it "provides access to the prompt" do
line = described_class.new("aaa", prompt: ">> ")
expect(line.prompt).to eq(">> ")
expect(line.text).to eq("aaa")
expect(line.size).to eq(6)
expect(line.to_s).to eq(">> aaa")
end
it "inserts characters inside a line" do
line = described_class.new("aaaaa")
line[0] = "test"
expect(line.text).to eq("testaaaaa")
line[4..6] = ""
expect(line.text).to eq("testaa")
end
it "moves cursor left and right" do
line = described_class.new("aaaaa")
5.times { line.left }
expect(line.cursor).to eq(0)
expect(line.start?).to eq(true)
line.left(5)
expect(line.cursor).to eq(0)
line.right(20)
expect(line.cursor).to eq(5)
expect(line.end?).to eq(true)
end
it "inserts char at start of the line" do
line = described_class.new("aaaaa")
expect(line.cursor).to eq(5)
line[0] = "b"
expect(line.cursor).to eq(1)
expect(line.text).to eq("baaaaa")
line.insert("b")
expect(line.text).to eq("bbaaaaa")
end
it "inserts char at end of the line" do
line = described_class.new("aaaaa")
expect(line.cursor).to eq(5)
line[4] = "b"
expect(line.cursor).to eq(5)
expect(line.text).to eq("aaaaba")
end
it "inserts char inside the line" do
line = described_class.new("aaaaa")
expect(line.cursor).to eq(5)
line[2] = "b"
expect(line.cursor).to eq(3)
expect(line.text).to eq("aabaaa")
end
it "inserts char outside of the line size" do
line = described_class.new("aaaaa")
expect(line.cursor).to eq(5)
line[10] = "b"
expect(line.cursor).to eq(11)
expect(line.text).to eq("aaaaa b")
end
it "inserts chars in empty string" do
line = described_class.new("")
expect(line.cursor).to eq(0)
line.insert("a")
expect(line.cursor).to eq(1)
line.insert("b")
expect(line.cursor).to eq(2)
expect(line.to_s).to eq("ab")
line.insert("cc")
expect(line.cursor).to eq(4)
expect(line.to_s).to eq("abcc")
end
it "inserts characters with #insert call" do
line = described_class.new("aaaaa")
expect(line.cursor).to eq(5)
line.left(2)
expect(line.cursor).to eq(3)
line.insert(" test ")
expect(line.text).to eq("aaa test aa")
expect(line.cursor).to eq(9)
line.right
expect(line.cursor).to eq(10)
end
it "removes char before current cursor position" do
line = described_class.new("abcdef")
expect(line.cursor).to eq(6)
line.remove(2)
expect(line.text).to eq("abcd")
expect(line.cursor).to eq(4)
line.left
line.left
line.remove
expect(line.text).to eq("acd")
expect(line.cursor).to eq(1)
line.insert("x")
expect(line.text).to eq("axcd")
end
it "deletes char under current cursor position" do
line = described_class.new("abcdef")
line.left(3)
line.delete
expect(line.text).to eq("abcef")
line.right
line.delete
expect(line.text).to eq("abce")
line.left(4)
line.delete
expect(line.text).to eq("bce")
end
it "replaces current line with new preserving cursor" do
line = described_class.new("x" * 6)
expect(line.text).to eq("xxxxxx")
expect(line.cursor).to eq(6)
expect(line.mode).to eq(:edit)
expect(line.editing?).to eq(true)
line.replace("y" * 8)
expect(line.text).to eq("y" * 8)
expect(line.cursor).to eq(8)
expect(line.replacing?).to eq(true)
line.insert("z")
expect(line.text).to eq("y" * 8 + "z")
expect(line.cursor).to eq(9)
expect(line.editing?).to eq(true)
end
end
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