// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include <stddef.h>

#include "base/macros.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "tools/gn/err.h"
#include "tools/gn/label_pattern.h"
#include "tools/gn/value.h"

namespace {

struct PatternCase {
  const char* input;
  bool success;

  LabelPattern::Type type;
  const char* dir;
  const char* name;
  const char* toolchain;
};

}  // namespace

TEST(LabelPattern, PatternParse) {
  SourceDir current_dir("//foo/");
  PatternCase cases[] = {
    // Missing stuff.
    { "", false, LabelPattern::MATCH, "", "", "" },
    { ":", false, LabelPattern::MATCH, "", "", "" },
    // Normal things.
    { ":bar", true, LabelPattern::MATCH, "//foo/", "bar", "" },
    { "//la:bar", true, LabelPattern::MATCH, "//la/", "bar", "" },
    { "*", true, LabelPattern::RECURSIVE_DIRECTORY, "", "", "" },
    { ":*", true, LabelPattern::DIRECTORY, "//foo/", "", "" },
    { "la:*", true, LabelPattern::DIRECTORY, "//foo/la/", "", "" },
    { "la/*:*", true, LabelPattern::RECURSIVE_DIRECTORY, "//foo/la/", "", "" },
    { "//la:*", true, LabelPattern::DIRECTORY, "//la/", "", "" },
    { "./*", true, LabelPattern::RECURSIVE_DIRECTORY, "//foo/", "", "" },
    { "foo/*", true, LabelPattern::RECURSIVE_DIRECTORY, "//foo/foo/", "", "" },
    { "//l/*", true, LabelPattern::RECURSIVE_DIRECTORY, "//l/", "", "" },
    // Toolchains.
    { "//foo()", true, LabelPattern::MATCH, "//foo/", "foo", "" },
    { "//foo(//bar)", true, LabelPattern::MATCH, "//foo/", "foo", "//bar:bar" },
    { "//foo:*(//bar)", true, LabelPattern::DIRECTORY, "//foo/", "",
      "//bar:bar" },
    { "//foo/*(//bar)", true, LabelPattern::RECURSIVE_DIRECTORY, "//foo/", "",
      "//bar:bar" },
    // Wildcards in invalid places.
    { "*foo*:bar", false, LabelPattern::MATCH, "", "", "" },
    { "foo*:*bar", false, LabelPattern::MATCH, "", "", "" },
    { "*foo:bar", false, LabelPattern::MATCH, "", "", "" },
    { "foo:bar*", false, LabelPattern::MATCH, "", "", "" },
    { "*:*", true, LabelPattern::RECURSIVE_DIRECTORY, "", "", "" },
    // Invalid toolchain stuff.
    { "//foo(//foo/bar:*)", false, LabelPattern::MATCH, "", "", "" },
    { "//foo/*(*)", false, LabelPattern::MATCH, "", "", "" },
    { "//foo(//bar", false, LabelPattern::MATCH, "", "", "" },
  };

  for (size_t i = 0; i < arraysize(cases); i++) {
    const PatternCase& cur = cases[i];
    Err err;
    LabelPattern result =
        LabelPattern::GetPattern(current_dir, Value(nullptr, cur.input), &err);

    EXPECT_EQ(cur.success, !err.has_error()) << i << " " << cur.input;
    EXPECT_EQ(cur.type, result.type()) << i << " " << cur.input;
    EXPECT_EQ(cur.dir, result.dir().value()) << i << " " << cur.input;
    EXPECT_EQ(cur.name, result.name()) << i << " " << cur.input;
    EXPECT_EQ(cur.toolchain, result.toolchain().GetUserVisibleName(false))
        << i << " " << cur.input;
  }
}