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https://github.com/neovim/neovim.git
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3d3c0c669d
* feat(api): add lua C bindings for xdiff * chore: opt.hunk_lines -> opt.result_type opt.on_hunk now takes precedence over opt.result_type * chore: fix indents Fix indents * chore: change how priv is managed Assign priv NULL and unconditionally apply XFREE_CLEAR to it when finished.
113 lines
3.0 KiB
Lua
113 lines
3.0 KiB
Lua
local helpers = require('test.functional.helpers')(after_each)
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local clear = helpers.clear
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local exec_lua = helpers.exec_lua
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local eq = helpers.eq
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local pcall_err = helpers.pcall_err
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describe('xdiff bindings', function()
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before_each(function()
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clear()
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end)
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describe('can diff text', function()
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before_each(function()
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exec_lua[[
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a1 = 'Hello\n'
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b1 = 'Helli\n'
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a2 = 'Hello\nbye\nfoo\n'
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b2 = 'Helli\nbye\nbar\nbaz\n'
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]]
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end)
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it('with no callback', function()
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eq(
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table.concat({
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'@@ -1 +1 @@',
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'-Hello',
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'+Helli',
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''
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}, '\n'),
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exec_lua("return vim.diff(a1, b1)")
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)
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eq(
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table.concat({
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'@@ -1 +1 @@',
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'-Hello',
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'+Helli',
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'@@ -3 +3,2 @@',
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'-foo',
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'+bar',
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'+baz',
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''
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}, '\n'),
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exec_lua("return vim.diff(a2, b2)")
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)
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end)
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it('with callback', function()
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exec_lua([[on_hunk = function(sa, ca, sb, cb)
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exp[#exp+1] = {sa, ca, sb, cb}
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end]])
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eq({{1, 1, 1, 1}}, exec_lua[[
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exp = {}
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assert(vim.diff(a1, b1, {on_hunk = on_hunk}) == nil)
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return exp
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]])
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eq({{1, 1, 1, 1}, {3, 1, 3, 2}}, exec_lua[[
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exp = {}
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assert(vim.diff(a2, b2, {on_hunk = on_hunk}) == nil)
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return exp
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]])
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-- gives higher precedence to on_hunk over result_type
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eq({{1, 1, 1, 1}, {3, 1, 3, 2}}, exec_lua[[
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exp = {}
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assert(vim.diff(a2, b2, {on_hunk = on_hunk, result_type='indices'}) == nil)
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return exp
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]])
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end)
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it('with error callback', function()
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exec_lua([[on_hunk = function(sa, ca, sb, cb)
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error('ERROR1')
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end]])
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eq([[Error executing lua: [string "<nvim>"]:0: error running function on_hunk: [string "<nvim>"]:0: ERROR1]],
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pcall_err(exec_lua, [[vim.diff(a1, b1, {on_hunk = on_hunk})]]))
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end)
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it('with hunk_lines', function()
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eq({{1, 1, 1, 1}},
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exec_lua([[return vim.diff(a1, b1, {result_type = 'indices'})]]))
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eq({{1, 1, 1, 1}, {3, 1, 3, 2}},
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exec_lua([[return vim.diff(a2, b2, {result_type = 'indices'})]]))
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end)
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end)
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it('can handle bad args', function()
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eq([[Error executing lua: [string "<nvim>"]:0: Expected at least 2 arguments]],
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pcall_err(exec_lua, [[vim.diff('a')]]))
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eq([[Error executing lua: [string "<nvim>"]:0: bad argument #1 to 'diff' (expected string)]],
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pcall_err(exec_lua, [[vim.diff(1, 2)]]))
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eq([[Error executing lua: [string "<nvim>"]:0: bad argument #3 to 'diff' (expected table)]],
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pcall_err(exec_lua, [[vim.diff('a', 'b', true)]]))
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eq([[Error executing lua: [string "<nvim>"]:0: unexpected key: bad_key]],
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pcall_err(exec_lua, [[vim.diff('a', 'b', { bad_key = true })]]))
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eq([[Error executing lua: [string "<nvim>"]:0: on_hunk is not a function]],
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pcall_err(exec_lua, [[vim.diff('a', 'b', { on_hunk = true })]]))
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end)
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end)
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