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-- luacheck: globals describe it assert before_each after_each
local geo = require("99.geo")
local Point = geo.Point
local Range = geo.Range
local test_utils = require("99.test.test_utils")
local eq = assert.are.same
describe("Point", function()
local buffer
before_each(function()
buffer = test_utils.create_file({
"first line",
"middle line",
"last line",
}, "lua", 1, 0)
end)
after_each(function()
test_utils.clean_files()
end)
it("line returns first, middle, and last line", function()
eq("first line", Point:from_1_based(1, 1):line(buffer))
eq("middle line", Point:from_1_based(2, 1):line(buffer))
eq("last line", Point:from_1_based(3, 1):line(buffer))
end)
end)
describe("Range", function()
local buffer
before_each(function()
buffer = test_utils.create_file({
"function foo()",
" local x = 1",
" return x",
"end",
"",
"function bar()",
" return 42",
"end",
}, "lua", 1, 0)
end)
after_each(function()
test_utils.clean_files()
end)
it("replace text", function()
local start_point = Point:from_1_based(2, 3)
local end_point = Point:from_1_based(3, 11)
local range = Range:new(buffer, start_point, end_point)
local original_text = range:to_text()
eq("local x = 1\n return x", original_text)
local replace_text = { "local y = 2" }
range:replace_text(replace_text)
local lines = vim.api.nvim_buf_get_lines(buffer, 0, -1, false)
eq({
"function foo()",
" local y = 2",
"end",
"",
"function bar()",
" return 42",
"end",
}, lines)
end)
it("replace text single line into multi-line", function()
local start_point = Point:from_1_based(2, 3)
local end_point = Point:from_1_based(3, 11)
local range = Range:new(buffer, start_point, end_point)
local original_text = range:to_text()
eq("local x = 1\n return x", original_text)
local replace_text = {
"local y = 2",
" local z = 3",
}
range:replace_text(replace_text)
local lines = vim.api.nvim_buf_get_lines(buffer, 0, -1, false)
eq({
"function foo()",
" local y = 2",
" local z = 3",
"end",
"",
"function bar()",
" return 42",
"end",
}, lines)
end)
it(
"should be able to visual line select an empty line and return out an empty line of text",
function()
vim.api.nvim_win_set_cursor(0, { 5, 0 })
vim.api.nvim_feedkeys("V", "x", false)
test_utils.next_frame()
vim.api.nvim_feedkeys(
vim.api.nvim_replace_termcodes("<Esc>", true, false, true),
"x",
false
)
local range = Range.from_visual_selection()
local text = range:to_text()
eq("", text)
end
)
it("should create range from simple visual line selection", function()
vim.api.nvim_win_set_cursor(0, { 2, 0 })
vim.api.nvim_feedkeys("V", "x", false)
test_utils.next_frame()
vim.api.nvim_feedkeys(
vim.api.nvim_replace_termcodes("<Esc>", true, false, true),
"x",
false
)
local range = Range.from_visual_selection()
local text = range:to_text()
eq(" local x = 1", text)
end)
it(
"should handle from_visual_selection when visual marks point past buffer end",
function()
local small_buffer = test_utils.create_file({
"line one",
"line two",
}, "lua", 1, 0)
local lines = vim.api.nvim_buf_get_lines(0, 0, -1, false)
vim.fn.setpos("'<", { small_buffer, 1, 1, 0 })
vim.fn.setpos("'>", { small_buffer, 100, 1, 0 })
local range = Range.from_visual_selection()
eq(
Range:new(
small_buffer,
Point:from_1_based(1, 1),
Point:from_1_based(2, 9) --- we capture the full line "line two\n"
),
range
)
end
)
it(
"should handle from_visual_selection when buffer has been modified",
function()
-- Create buffer with some content
local mod_buffer = test_utils.create_file({
"function test()",
" return 1",
" return 2",
" return 3",
"end",
}, "lua", 1, 0)
-- Make a visual selection on lines 2-4
vim.api.nvim_win_set_cursor(0, { 2, 0 })
vim.api.nvim_feedkeys("V2j", "x", false)
test_utils.next_frame()
vim.api.nvim_feedkeys(
vim.api.nvim_replace_termcodes("<Esc>", true, false, true),
"x",
false
)
-- Now delete lines from the buffer, making the visual marks stale
vim.api.nvim_buf_set_lines(mod_buffer, 0, -1, false, { "only one line" })
-- The visual marks still point to old positions that no longer exist
-- This should not crash
local ok, err = pcall(Range.from_visual_selection)
assert.is_true(ok, "from_visual_selection crashed: " .. tostring(err))
end
)
it("should handle from_visual_selection on empty buffer", function()
-- Create an empty buffer
local empty_buffer = test_utils.create_file({}, "lua", 1, 0)
-- Set visual marks that would be invalid for empty buffer
vim.fn.setpos("'<", { empty_buffer, 1, 1, 0 })
vim.fn.setpos("'>", { empty_buffer, 1, 1, 0 })
-- This should not crash
local ok, err = pcall(Range.from_visual_selection)
assert.is_true(
ok,
"from_visual_selection crashed on empty buffer: " .. tostring(err)
)
end)
end)
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