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Add specs to fully cover cli.rb

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This commit is contained in:
Josh Holtrop 2024-04-06 14:37:15 -04:00
parent 19c32b58dc
commit 2b28ef622d
2 changed files with 82 additions and 46 deletions
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2
lib/propane/cli.rb
View File

@ -24,7 +24,7 @@ EOF
log_file = args[i]
end
when "--version"
puts "propane v#{VERSION}"
puts "propane version #{VERSION}"
return 0
when "-h", "--help"
puts USAGE

126
spec/propane_spec.rb
View File

@ -13,7 +13,7 @@ describe Propane do
File.write("spec/run/testparser#{options[:name]}.propane", grammar)
end
def build_parser(options = {})
def run_propane(options = {})
@statics[:build_test_id] ||= 0
@statics[:build_test_id] += 1
if ENV["dist_specs"]
@ -49,7 +49,11 @@ ENV["TERM"] = nil
EOF
end
end
command += %W[spec/run/testparser#{options[:name]}.propane spec/run/testparser#{options[:name]}.#{options[:language]} --log spec/run/testparser#{options[:name]}.log]
if options[:args]
command += options[:args]
else
command += %W[spec/run/testparser#{options[:name]}.propane spec/run/testparser#{options[:name]}.#{options[:language]} --log spec/run/testparser#{options[:name]}.log]
end
if (options[:capture])
stdout, stderr, status = Open3.capture3(*command)
Results.new(stdout, stderr, status)
@ -74,7 +78,7 @@ EOF
expect(result).to be_truthy
end
def run
def run_test
stdout, stderr, status = Open3.capture3("spec/run/testparser")
File.binwrite("spec/run/.stderr", stderr)
File.binwrite("spec/run/.stdout", stdout)
@ -112,6 +116,38 @@ EOF
FileUtils.mkdir_p("spec/run")
end
it "reports its version" do
results = run_propane(args: %w[--version], capture: true)
expect(results.stdout).to match /propane version \d+\.\d+/
expect(results.stderr).to eq ""
expect(results.status).to eq 0
end
it "shows help usage" do
results = run_propane(args: %w[-h], capture: true)
expect(results.stdout).to match /Usage/i
expect(results.stderr).to eq ""
expect(results.status).to eq 0
end
it "errors with unknown option" do
results = run_propane(args: %w[-i], capture: true)
expect(results.stderr).to match /Error: unknown option -i/
expect(results.status).to_not eq 0
end
it "errors when input and output files are not specified" do
results = run_propane(args: [], capture: true)
expect(results.stderr).to match /Error: specify input and output files/
expect(results.status).to_not eq 0
end
it "errors when input file is not readable" do
results = run_propane(args: %w[nope.txt out.d], capture: true)
expect(results.stderr).to match /Error: cannot read nope.txt/
expect(results.status).to_not eq 0
end
%w[d c].each do |language|
context "#{language.upcase} language" do
@ -126,9 +162,9 @@ Start -> Foo;
Foo -> int <<>>
Foo -> plus <<>>
EOF
build_parser(language: language)
run_propane(language: language)
compile("spec/test_lexer.#{language}", language: language)
results = run
results = run_test
expect(results.stderr).to eq ""
expect(results.status).to eq 0
end
@ -164,9 +200,9 @@ token int /\\d+/ <<
Start -> int << $$ = $1; >>
EOF
end
build_parser(language: language)
run_propane(language: language)
compile("spec/test_lexer_unknown_character.#{language}", language: language)
results = run
results = run_test
expect(results.stderr).to eq ""
expect(results.status).to eq 0
end
@ -184,7 +220,7 @@ E -> B;
B -> zero;
B -> one;
EOF
build_parser(language: language)
run_propane(language: language)
end
it "generates a parser that does basic math - user guide example" do
@ -258,9 +294,9 @@ E4 -> integer << $$ = $1; >>
E4 -> lparen E1 rparen << $$ = $2; >>
EOF
end
build_parser(language: language)
run_propane(language: language)
compile("spec/test_basic_math_grammar.#{language}", language: language)
results = run
results = run_test
expect(results.stderr).to eq ""
expect(results.status).to eq 0
end
@ -272,7 +308,7 @@ Start -> E;
E -> one E;
E -> one;
EOF
build_parser(language: language)
run_propane(language: language)
end
it "distinguishes between multiple identical rules with lookahead symbol" do
@ -284,9 +320,9 @@ Start -> R2 b;
R1 -> a b;
R2 -> a b;
EOF
build_parser(language: language)
run_propane(language: language)
compile("spec/test_parser_identical_rules_lookahead.#{language}", language: language)
results = run
results = run_test
expect(results.status).to eq 0
end
@ -299,9 +335,9 @@ Start -> a R1;
Start -> b R1;
R1 -> b;
EOF
build_parser(language: language)
run_propane(language: language)
compile("spec/test_parser_rule_from_multiple_states.#{language}", language: language)
results = run
results = run_test
expect(results.status).to eq 0
end
@ -334,9 +370,9 @@ Abcs -> ;
Abcs -> abc Abcs;
EOF
end
build_parser(language: language)
run_propane(language: language)
compile("spec/test_user_code.#{language}", language: language)
results = run
results = run_test
expect(results.status).to eq 0
verify_lines(results.stdout, [
"abc!",
@ -370,9 +406,9 @@ token abc;
Start -> abc;
EOF
end
build_parser(language: language)
run_propane(language: language)
compile("spec/test_pattern.#{language}", language: language)
results = run
results = run_test
expect(results.status).to eq 0
verify_lines(results.stdout, [
"def!",
@ -412,9 +448,9 @@ token abc;
Start -> abc;
EOF
end
build_parser(language: language)
run_propane(language: language)
compile("spec/test_return_token_from_pattern.#{language}", language: language)
results = run
results = run_test
expect(results.status).to eq 0
verify_lines(results.stdout, [
"def!",
@ -470,9 +506,9 @@ string: /"/ <<
Start -> abc string def;
EOF
end
build_parser(language: language)
run_propane(language: language)
compile("spec/test_lexer_modes.#{language}", language: language)
results = run
results = run_test
expect(results.status).to eq 0
verify_lines(results.stdout, [
"begin string mode",
@ -509,9 +545,9 @@ A -> a << writeln("A!"); >>
B -> b << writeln("B!"); >>
EOF
end
build_parser(language: language)
run_propane(language: language)
compile("spec/test_parser_rule_user_code.#{language}", language: language)
results = run
results = run_test
expect(results.status).to eq 0
verify_lines(results.stdout, [
"A!",
@ -528,9 +564,9 @@ Start -> As << $$ = $1; >>
As -> << $$ = 0u; >>
As -> As a << $$ = $1 + 1u; >>
EOF
build_parser(language: language)
run_propane(language: language)
compile("spec/test_parsing_lists.#{language}", language: language)
results = run
results = run_test
expect(results.status).to eq 0
expect(results.stderr).to eq ""
end
@ -549,7 +585,7 @@ Start -> b E d;
E -> e;
F -> e;
EOF
results = build_parser(capture: true, language: language)
results = run_propane(capture: true, language: language)
expect(results.status).to_not eq 0
expect(results.stderr).to match %r{reduce/reduce conflict.*\(E\).*\(F\)}
end
@ -581,9 +617,9 @@ token id /[a-zA-Z_][a-zA-Z0-9_]*/ <<
Start -> id;
EOF
end
build_parser(language: language)
run_propane(language: language)
compile("spec/test_lexer_match_text.#{language}", language: language)
results = run
results = run_test
expect(results.status).to eq 0
verify_lines(results.stdout, [
"Matched token is identifier_123",
@ -614,9 +650,9 @@ Start -> word <<
>>
EOF
end
build_parser(language: language)
run_propane(language: language)
compile("spec/test_lexer_result_value.#{language}", language: language)
results = run
results = run_test
expect(results.stderr).to eq ""
expect(results.status).to eq 0
end
@ -629,16 +665,16 @@ drop /\\s+/;
Start -> a num Start;
Start -> a num;
EOF
build_parser(language: language)
run_propane(language: language)
compile("spec/test_error_positions.#{language}", language: language)
results = run
results = run_test
expect(results.stderr).to eq ""
expect(results.status).to eq 0
end
it "allows creating a JSON parser" do
write_grammar(File.read("spec/json_parser.#{language}.propane"))
build_parser(language: language)
run_propane(language: language)
compile(["spec/test_parsing_json.#{language}", "spec/json_types.#{language}"], language: language)
end
@ -650,16 +686,16 @@ token num /\\d+/;
drop /\\s+/;
Start -> a num;
EOF
build_parser(name: "myp1", language: language)
run_propane(name: "myp1", language: language)
write_grammar(<<EOF, name: "myp2")
prefix myp2_;
token b;
token c;
Start -> b c b;
EOF
build_parser(name: "myp2", language: language)
run_propane(name: "myp2", language: language)
compile("spec/test_multiple_parsers.#{language}", parsers: %w[myp1 myp2], language: language)
results = run
results = run_test
expect(results.stderr).to eq ""
expect(results.status).to eq 0
end
@ -676,9 +712,9 @@ Any -> a;
Any -> b;
Any -> c;
EOF
build_parser(language: language)
run_propane(language: language)
compile("spec/test_user_terminate_lexer.#{language}", language: language)
results = run
results = run_test
expect(results.stderr).to eq ""
expect(results.status).to eq 0
end
@ -694,9 +730,9 @@ Any -> b Any << $terminate(4200); >>
Any -> c Any;
Any -> ;
EOF
build_parser(language: language)
run_propane(language: language)
compile("spec/test_user_terminate.#{language}", language: language)
results = run
results = run_test
expect(results.stderr).to eq ""
expect(results.status).to eq 0
end
@ -738,9 +774,9 @@ tokenid t;
Start -> t;
EOF
end
build_parser(language: language)
run_propane(language: language)
compile("spec/test_match_backslashes.#{language}", language: language)
results = run
results = run_test
expect(results.stderr).to eq ""
expect(results.status).to eq 0
verify_lines(results.stdout, [
@ -765,7 +801,7 @@ Start -> ;
Opt -> two;
Opt -> ;
EOF
build_parser(language: language)
run_propane(language: language)
end
end
end