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82 lines
2.2 KiB
Ruby
82 lines
2.2 KiB
Ruby
# frozen_string_literal: true
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require_relative "../test_helper"
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module Prism
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class ParseTest < TestCase
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def test_parse_result
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result = Prism.parse("")
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assert_kind_of ParseResult, result
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result = Prism.parse_file(__FILE__)
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assert_kind_of ParseResult, result
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end
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def test_parse_empty_string
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result = Prism.parse("")
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assert_equal [], result.value.statements.body
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end
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def test_parse_takes_file_path
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filepath = "filepath.rb"
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result = Prism.parse("def foo; __FILE__; end", filepath: filepath)
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assert_equal filepath, find_source_file_node(result.value).filepath
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end
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def test_parse_takes_line
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line = 4
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result = Prism.parse("def foo\n __FILE__\nend", line: line)
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assert_equal line, result.value.location.start_line
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assert_equal line + 1, find_source_file_node(result.value).location.start_line
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result = Prism.parse_lex("def foo\n __FILE__\nend", line: line)
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assert_equal line, result.value.first.location.start_line
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end
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def test_parse_takes_negative_lines
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line = -2
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result = Prism.parse("def foo\n __FILE__\nend", line: line)
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assert_equal line, result.value.location.start_line
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assert_equal line + 1, find_source_file_node(result.value).location.start_line
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result = Prism.parse_lex("def foo\n __FILE__\nend", line: line)
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assert_equal line, result.value.first.location.start_line
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end
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def test_parse_file
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node = Prism.parse_file(__FILE__).value
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assert_kind_of ProgramNode, node
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error = assert_raise Errno::ENOENT do
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Prism.parse_file("idontexist.rb")
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end
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assert_equal "No such file or directory - idontexist.rb", error.message
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assert_raise TypeError do
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Prism.parse_file(nil)
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end
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end
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def test_parse_tempfile
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Tempfile.create(["test_parse_tempfile", ".rb"]) do |t|
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t.puts ["begin\n", " end\n"]
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t.flush
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Prism.parse_file(t.path)
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end
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end
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private
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def find_source_file_node(program)
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queue = [program]
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while (node = queue.shift)
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return node if node.is_a?(SourceFileNode)
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queue.concat(node.compact_child_nodes)
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end
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end
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end
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end
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