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// file : tests/manifest-parser/driver.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2018 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <cassert>
#ifndef __cpp_lib_modules
#include <vector>
#include <string>
#include <utility> // pair, move()
#include <sstream>
#include <iostream>
#endif
// Other includes.
#ifdef __cpp_modules
#ifdef __cpp_lib_modules
import std.core;
import std.io;
#endif
import butl.manifest_parser;
#else
#include <libbutl/manifest-parser.mxx>
#endif
using namespace std;
using namespace butl;
using pairs = vector<pair<string, string>>;
static bool
test (const char* manifest,
const pairs& expected,
manifest_parser::filter_function = {});
static bool
fail (const char* manifest);
int
main ()
{
// Whitespaces and comments.
//
assert (test (" \t", {{"",""}}));
assert (test (" \t\n \n\n", {{"",""}}));
assert (test ("# one\n #two", {{"",""}}));
// Test encountering eos at various points.
//
assert (test ("", {{"",""}}));
assert (test (" ", {{"",""}}));
assert (test ("\n", {{"",""}}));
assert (fail ("a"));
assert (test (":1\na:", {{"","1"},{"a", ""},{"",""},{"",""}}));
// Invalid manifests.
//
assert (fail ("a:")); // format version pair expected
assert (fail (":")); // format version value expected
assert (fail (":9")); // unsupported format version
assert (fail ("a")); // ':' expected after name
assert (fail ("a b")); // ':' expected after name
assert (fail ("a\tb")); // ':' expected after name
assert (fail ("a\nb")); // ':' expected after name
assert (fail (":1\na:b\n:9")); // unsupported format version
// Empty manifest.
//
assert (test (":1", {{"","1"},{"",""},{"",""}}));
assert (test (" \t :1", {{"","1"},{"",""},{"",""}}));
assert (test (" \t : 1", {{"","1"},{"",""},{"",""}}));
assert (test (" \t : 1 ", {{"","1"},{"",""},{"",""}}));
assert (test (":1\n", {{"","1"},{"",""},{"",""}}));
assert (test (":1 \n", {{"","1"},{"",""},{"",""}}));
// Single manifest.
//
assert (test (":1\na:x", {{"","1"},{"a", "x"},{"",""},{"",""}}));
assert (test (":1\na:x\n", {{"","1"},{"a","x"},{"",""},{"",""}}));
assert (test (":1\na:x\nb:y",
{{"","1"},{"a","x"},{"b","y"},{"",""},{"",""}}));
assert (test (":1\na:x\n\tb : y\n #comment",
{{"","1"},{"a","x"},{"b","y"},{"",""},{"",""}}));
// Multiple manifests.
//
assert (test (":1\na:x\n:\nb:y",
{{"","1"},{"a", "x"},{"",""},
{"","1"},{"b", "y"},{"",""},{"",""}}));
assert (test (":1\na:x\n:1\nb:y",
{{"","1"},{"a", "x"},{"",""},
{"","1"},{"b", "y"},{"",""},{"",""}}));
assert (test (":1\na:x\n:\nb:y\n:\nc:z\n",
{{"","1"},{"a", "x"},{"",""},
{"","1"},{"b", "y"},{"",""},
{"","1"},{"c", "z"},{"",""},{"",""}}));
// Name parsing.
//
assert (test (":1\nabc:", {{"","1"},{"abc",""},{"",""},{"",""}}));
assert (test (":1\nabc :", {{"","1"},{"abc",""},{"",""},{"",""}}));
assert (test (":1\nabc\t:", {{"","1"},{"abc",""},{"",""},{"",""}}));
// Simple value parsing.
//
assert (test (":1\na: \t xyz \t ", {{"","1"},{"a","xyz"},{"",""},{"",""}}));
// Simple value escaping.
//
assert (test (":1\na:x\\", {{"","1"},{"a","x"},{"",""},{"",""}}));
assert (test (":1\na:x\\\ny", {{"","1"},{"a","xy"},{"",""},{"",""}}));
assert (test (":1\na:x\\\\\nb:",
{{"","1"},{"a","x\\"},{"b",""},{"",""},{"",""}}));
assert (test (":1\na:x\\\\\\\nb:",
{{"","1"},{"a","x\\\\"},{"b",""},{"",""},{"",""}}));
// Simple value literal newline.
//
assert (test (":1\na:x\\\n\\", {{"","1"},{"a","x\n"},{"",""},{"",""}}));
assert (test (":1\na:x\\\n\\\ny", {{"","1"},{"a","x\ny"},{"",""},{"",""}}));
assert (test (":1\na:x\\\n\\\ny\\\n\\\nz",
{{"","1"},{"a","x\ny\nz"},{"",""},{"",""}}));
// Multi-line value parsing.
//
assert (test (":1\na:\\", {{"","1"},{"a", ""},{"",""},{"",""}}));
assert (test (":1\na:\\\n", {{"","1"},{"a", ""},{"",""},{"",""}}));
assert (test (":1\na:\\x", {{"","1"},{"a", "\\x"},{"",""},{"",""}}));
assert (test (":1\na:\\\n\\", {{"","1"},{"a", ""},{"",""},{"",""}}));
assert (test (":1\na:\\\n\\\n", {{"","1"},{"a", ""},{"",""},{"",""}}));
assert (test (":1\na:\\\n\\x\n\\",
{{"","1"},{"a", "\\x"},{"",""},{"",""}}));
assert (test (":1\na:\\\nx\ny", {{"","1"},{"a", "x\ny"},{"",""},{"",""}}));
assert (test (":1\na:\\\n \n#\t\n\\",
{{"","1"},{"a", " \n#\t"},{"",""},{"",""}}));
assert (test (":1\na:\\\n\n\n\\", {{"","1"},{"a", "\n"},{"",""},{"",""}}));
// Multi-line value escaping.
//
assert (test (":1\na:\\\nx\\", {{"","1"},{"a","x"},{"",""},{"",""}}));
assert (test (":1\na:\\\nx\\\ny\n\\",
{{"","1"},{"a","xy"},{"",""},{"",""}}));
assert (test (":1\na:\\\nx\\\\\n\\\nb:",
{{"","1"},{"a","x\\"},{"b",""},{"",""},{"",""}}));
assert (test (":1\na:\\\nx\\\\\\\n\\\nb:",
{{"","1"},{"a","x\\\\"},{"b",""},{"",""},{"",""}}));
// Manifest value splitting (into the value/comment pair).
//
{
auto p (manifest_parser::split_comment ("value\\; text ; comment text"));
assert (p.first == "value; text" && p.second == "comment text");
}
{
auto p (manifest_parser::split_comment ("value"));
assert (p.first == "value" && p.second == "");
}
{
auto p (manifest_parser::split_comment ("; comment"));
assert (p.first == "" && p.second == "comment");
}
// Filtering.
//
assert (test (":1\na: abc\nb: bca\nc: cab",
{{"","1"},{"a","abc"},{"c","cab"},{"",""},{"",""}},
[] (manifest_name_value& nv) {return nv.name != "b";}));
assert (test (":1\na: abc\nb: bca",
{{"","1"},{"ax","abc."},{"bx","bca."},{"",""},{"",""}},
[] (manifest_name_value& nv)
{
if (!nv.name.empty ())
{
nv.name += 'x';
nv.value += '.';
}
return true;
}));
}
static ostream&
operator<< (ostream& os, const pairs& ps)
{
os << '{';
bool f (true);
for (const auto& p: ps)
os << (f ? (f = false, "") : ",")
<< '{' << p.first << ',' << p.second << '}';
os << '}';
return os;
}
static pairs
parse (const char* m, manifest_parser::filter_function f = {})
{
istringstream is (m);
is.exceptions (istream::failbit | istream::badbit);
manifest_parser p (is, "", move (f));
pairs r;
for (bool eom (true), eos (false); !eos; )
{
manifest_name_value nv (p.next ());
if (nv.empty ()) // End pair.
{
eos = eom;
eom = true;
}
else
eom = false;
r.emplace_back (move (nv.name), move (nv.value));
}
return r;
}
static bool
test (const char* m, const pairs& e, manifest_parser::filter_function f)
{
pairs r (parse (m, move (f)));
if (r != e)
{
cerr << "actual: " << r << endl
<< "expect: " << e << endl;
return false;
}
return true;
}
static bool
fail (const char* m)
{
try
{
pairs r (parse (m));
cerr << "nofail: " << r << endl;
return false;
}
catch (const manifest_parsing&)
{
//cerr << e << endl;
}
return true;
}
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