1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef GPU_CONFIG_GPU_TEST_EXPECTATIONS_PARSER_H_
6#define GPU_CONFIG_GPU_TEST_EXPECTATIONS_PARSER_H_
7
8#include <string>
9#include <vector>
10
11#include "base/basictypes.h"
12#include "base/files/file_path.h"
13#include "gpu/config/gpu_test_config.h"
14#include "gpu/gpu_export.h"
15
16namespace gpu {
17
18class GPU_EXPORT GPUTestExpectationsParser {
19 public:
20  enum GPUTestExpectation {
21    kGpuTestPass = 1 << 0,
22    kGpuTestFail = 1 << 1,
23    kGpuTestFlaky = 1 << 2,
24    kGpuTestTimeout = 1 << 3,
25    kGpuTestSkip = 1 << 4,
26  };
27
28  GPUTestExpectationsParser();
29  ~GPUTestExpectationsParser();
30
31  // Parse the text expectations, and if no error is encountered,
32  // save all the entries. Otherwise, generate error messages.
33  // Return true if parsing succeeds.
34  bool LoadTestExpectations(const std::string& data);
35  bool LoadTestExpectations(const base::FilePath& path);
36
37  // Query error messages from the last LoadTestExpectations() call.
38  const std::vector<std::string>& GetErrorMessages() const;
39
40  // Get the test expectation of a given test on a given bot.
41  int32 GetTestExpectation(const std::string& test_name,
42                           const GPUTestBotConfig& bot_config) const;
43
44  // Parse a list of config modifiers. If we have a valid entry with no
45  // conflicts, | config | stores it, and the function returns true.
46  bool ParseConfig(const std::string& config_data, GPUTestConfig* config);
47
48 private:
49  struct GPUTestExpectationEntry {
50    GPUTestExpectationEntry();
51
52    std::string test_name;
53    GPUTestConfig test_config;
54    int32 test_expectation;
55    size_t line_number;
56  };
57
58  // Parse a line of text. If we have a valid entry, save it; otherwise,
59  // generate error messages.
60  bool ParseLine(const std::string& line_data, size_t line_number);
61
62  // Update OS/GPUVendor/BuildType modifiers. May generate an error message.
63  bool UpdateTestConfig(
64      GPUTestConfig* config, int32 token, size_t line_number);
65
66  // Update GPUDeviceID modifier. May generate an error message.
67  bool UpdateTestConfig(GPUTestConfig* config,
68                        const std::string & gpu_device_id,
69                        size_t line_number);
70
71  // Check if two entries' config overlap with each other. May generate an
72  // error message.
73  bool DetectConflictsBetweenEntries();
74
75  // Save an error message, which can be queried later.
76  void PushErrorMessage(const std::string& message, size_t line_number);
77  void PushErrorMessage(const std::string& message,
78                        size_t entry1_line_number,
79                        size_t entry2_line_number);
80
81  std::vector<GPUTestExpectationEntry> entries_;
82  std::vector<std::string> error_messages_;
83};
84
85}  // namespace gpu
86
87#endif  // GPU_CONFIG_GPU_TEST_EXPECTATIONS_PARSER_H_
88
89