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-- Test suite for testing interactions with API bindings
local helpers = require('test.functional.helpers')(after_each)
local meths = helpers.meths
local clear = helpers.clear
local eq = helpers.eq
local insert = helpers.insert
local meth_pcall = helpers.meth_pcall
local exec_lua = helpers.exec_lua
local iswin = helpers.iswin
before_each(clear)
describe('tree-sitter API', function()
-- error tests not requiring a parser library
it('handles basic errors', function()
--eq({false, 'Error executing lua: vim.schedule: expected function'},
-- meth_pcall(meths.execute_lua, "parser = vim.treesitter.create_parser(0, 'nosuchlang')", {}))
end)
local ts_path = os.getenv("TREE_SITTER_DIR")
describe('with C parser', function()
if ts_path == nil then
it("works", function() pending("TREE_SITTER_PATH not set, skipping tree-sitter parser tests") end)
return
end
before_each(function()
-- TODO the .so/.dylib/.dll thingie
local path = ts_path .. '/bin/c'..(iswin() and '.dll' or '.so')
exec_lua([[
local path = ...
vim.treesitter.add_language(path,'c')
]], path)
end)
it('parses buffer', function()
insert([[
int main() {
int x = 3;
}]])
exec_lua([[
parser = vim.treesitter.create_parser(0, "c")
tree = parser:parse_tree()
root = tree:root()
]])
--eq("<parser>", exec_lua("return tostring(parser)"))
eq("<tree>", exec_lua("return tostring(tree)"))
eq("<node translation_unit>", exec_lua("return tostring(root)"))
eq({0,0,3,0}, exec_lua("return {root:range()}"))
eq(1, exec_lua("return root:child_count()"))
exec_lua("child = root:child(0)")
eq("<node function_definition>", exec_lua("return tostring(child)"))
eq({0,0,2,1}, exec_lua("return {child:range()}"))
end)
end)
end)
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