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89 lines
2.7 KiB
Lua
89 lines
2.7 KiB
Lua
-- Test suite for testing interactions with API bindings
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local helpers = require('test.functional.helpers')(after_each)
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local meths = helpers.meths
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local clear = helpers.clear
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local eq = helpers.eq
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local insert = helpers.insert
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local meth_pcall = helpers.meth_pcall
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local exec_lua = helpers.exec_lua
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local iswin = helpers.iswin
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local feed = helpers.feed
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before_each(clear)
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describe('tree-sitter API', function()
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-- error tests not requiring a parser library
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it('handles basic errors', function()
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--eq({false, 'Error executing lua: vim.schedule: expected function'},
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-- meth_pcall(meths.execute_lua, "parser = vim.treesitter.create_parser(0, 'nosuchlang')", {}))
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end)
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local ts_path = os.getenv("TREE_SITTER_DIR")
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describe('with C parser', function()
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if ts_path == nil then
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it("works", function() pending("TREE_SITTER_PATH not set, skipping tree-sitter parser tests") end)
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return
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end
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before_each(function()
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-- TODO the .so/.dylib/.dll thingie
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local path = ts_path .. '/bin/c'..(iswin() and '.dll' or '.so')
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exec_lua([[
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local path = ...
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vim.treesitter.add_language(path,'c')
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]], path)
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end)
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it('parses buffer', function()
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insert([[
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int main() {
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int x = 3;
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}]])
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exec_lua([[
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parser = vim.treesitter.get_parser(0, "c")
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tree = parser:parse()
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root = tree:root()
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]])
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eq("<tree>", exec_lua("return tostring(tree)"))
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eq("<node translation_unit>", exec_lua("return tostring(root)"))
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eq({0,0,3,0}, exec_lua("return {root:range()}"))
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eq(1, exec_lua("return root:child_count()"))
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exec_lua("child = root:child(0)")
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eq("<node function_definition>", exec_lua("return tostring(child)"))
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eq({0,0,2,1}, exec_lua("return {child:range()}"))
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exec_lua("descendant = root:descendant_for_point_range(1,2,1,12)")
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eq("<node declaration>", exec_lua("return tostring(descendant)"))
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eq({1,2,1,12}, exec_lua("return {descendant:range()}"))
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eq("(declaration (primitive_type) (init_declarator (identifier) (number_literal)))", exec_lua("return descendant:sexpr()"))
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feed("2G7|ay")
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exec_lua([[
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tree2 = parser:parse()
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root2 = tree2:root()
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descendant2 = root2:descendant_for_point_range(1,2,1,13)
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]])
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eq(false, exec_lua("return tree2 == tree1"))
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eq("<node declaration>", exec_lua("return tostring(descendant2)"))
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eq({1,2,1,13}, exec_lua("return {descendant2:range()}"))
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-- orginal tree did not change
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eq({1,2,1,12}, exec_lua("return {descendant:range()}"))
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-- unchanged buffer: return the same tree
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eq(true, exec_lua("return parser:parse() == tree2"))
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end)
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end)
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end)
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