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Improve lexer error handling tests

This commit is contained in:
Netscape Navigator 2020-04-10 07:39:50 -05:00
parent e8e223f2ee
commit 291b450da6
1 changed files with 15 additions and 7 deletions
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22
spec/pigeon/lexer_spec.rb
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@ -95,7 +95,7 @@ RSpec.describe Pigeon::Lexer do
]
MESSAGE_LINES = [
"author @WEf06RUKouNcEVURslzHvepOiK4WbQAgRc_9aiUy7rE=.ed25519",
"author @VG44QCHKA38E7754RQ5DAFBMMD2CCZQRZ8BR2J4MRHHGVTHGW670.ed25519",
"kind unit_test",
"prev NONE",
"depth 0",
@ -149,12 +149,20 @@ RSpec.describe Pigeon::Lexer do
it "catches syntax errors" do
e = Pigeon::Lexer::LexError
[
MESSAGE_LINES.dup.insert(3, "@@@").join("\n"),
MESSAGE_LINES.dup.insert(5, "@@@").join("\n"),
MESSAGE_LINES.dup.insert(7, "@@@").join("\n"),
].map do |bundle|
expect { Pigeon::Lexer.tokenize(bundle) }.to raise_error(e)
err_map = {
0 => "Syntax error at 0. Failed to read header field.",
1 => "Syntax error at 69. Failed to read header field.",
2 => "Syntax error at 84. Failed to read header field.",
3 => "Syntax error at 94. Failed to read header field.",
4 => "Syntax error at 102. Failed to read header field.",
5 => "Syntax error at 103. Failed to read body field.",
6 => "Syntax error at 113. Failed to read body field.",
7 => "Parse error at 114. Double carriage return not found.",
}
(0..7).to_a.map do |n|
t = MESSAGE_LINES.dup.insert(n, "@@@").join("\n")
emsg = err_map.fetch(n)
expect { Pigeon::Lexer.tokenize(t) }.to raise_error(e, emsg)
end
end
end