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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// -*- Mode: C++ -*-
//
// Copyright (C) 2013-2025 Red Hat, Inc.
//
// Author: Dodji Seketeli
#include <string>
#include <fstream>
#include <iostream>
#include <cstdlib>
#include "abg-tools-utils.h"
#include "abg-diff-utils.h"
#include "test-utils.h"
using std::string;
using std::ofstream;
using std::cerr;
/// This structure describes the set of strings we want to diff
/// against each other as well as the reports we expect from these
/// diffs.
struct SESInOutSpec
{
// This is the path to the report we expect from the diff algorithm
// applied to second_string (below) diffed against first_string.
const char* in_path;
// This is the path where to store the report of the diff algorithm
// applied to second_string (below) diffed against first_string.
const char* out_path;
// This is the first string to feed the diff algorithm with.
const char* first_string;
// This is the second string to feed the diff algorithm with.
const char* second_string;
};// end struct SESInOutSpec
SESInOutSpec in_out_specs[] =
{
{
"data/test-core-diff/report0.txt",
"output/test-core-diff/report0.txt",
"abcabba",
"cbabac"
},
{
"data/test-core-diff/report1.txt",
"output/test-core-diff/report1.txt",
"xxabxx",
"xbx"
},
{
"data/test-core-diff/report2.txt",
"output/test-core-diff/report2.txt",
"xxabxx",
"xbcx"
},
{
"data/test-core-diff/report3.txt",
"output/test-core-diff/report3.txt",
"abc",
"abdecfgc"
},
{
"data/test-core-diff/report4.txt",
"output/test-core-diff/report4.txt",
"xxx",
"xxx"
},
{
"data/test-core-diff/report5.txt",
"output/test-core-diff/report5.txt",
"xabx",
"xbx"
},
{
"data/test-core-diff/report6.txt",
"output/test-core-diff/report6.txt",
"fou",
"fubar"
},
{
"data/test-core-diff/report7.txt",
"output/test-core-diff/report7.txt",
"sqkdjfjdsql",
"sqdmlkjfmljdsqf"
},
{
"data/test-core-diff/report8.txt",
"output/test-core-diff/report8.txt",
"abcdef",
"bcghai"
},
{
"data/test-core-diff/report9.txt",
"output/test-core-diff/report9.txt",
"abcdef",
"bjcghai"
},
{
"data/test-core-diff/report10.txt",
"output/test-core-diff/report10.txt",
"a",
"ab"
},
{
"data/test-core-diff/report11.txt",
"output/test-core-diff/report11.txt",
"a",
"abd"
},
{
"data/test-core-diff/report12.txt",
"output/test-core-diff/report12.txt",
"a",
"cba"
},
{
"data/test-core-diff/report13.txt",
"output/test-core-diff/report13.txt",
"abcdefghi",
"jklmnopqrstadubvfwxgh"
},
// This should be the last entry.
{NULL, NULL, NULL, NULL}
};
using abigail::diff_utils::edit_script;
using abigail::diff_utils::compute_ses;
using abigail::diff_utils::display_edit_script;
int
main()
{
unsigned result = 1;
bool problem = false;
string in_path, out_path;
for (SESInOutSpec *s = in_out_specs; s->in_path; ++s)
{
string input_suffix(s->in_path);
in_path =
string(abigail::tests::get_src_dir()) + "/tests/" + input_suffix;
string output_suffix(s->out_path);
out_path =
string(abigail::tests::get_build_dir()) + "/tests/" + output_suffix;
if (!abigail::tools_utils::ensure_parent_dir_created(out_path))
{
cerr << "Could not create parent director for " << out_path;
problem = true;
return result;
}
ofstream of(out_path.c_str(), std::ios_base::trunc);
if (!of.is_open())
{
cerr << "failed to read " << out_path << "\n";
problem = true;
continue;
}
edit_script ses;
// Compute the Shortest Edit Script (aka diff) that changes
// s->first_string into s->second_string.
compute_ses(s->first_string, s->second_string, ses);
// Emit a report about that edit script
display_edit_script(ses, s->first_string, s->second_string, of);
of.close();
// Diff that report against what we expect.
string cmd = "diff -u " + in_path + " " + out_path;
if (system(cmd.c_str()))
problem= true;
}
return problem;
}
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