| 1 | #!/usr/bin/env python2
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| 2 | # coding=utf8
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| 3 |
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| 4 | import os
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| 5 | import unittest
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| 6 |
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| 7 | from display import ansi
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| 8 | from display import pretty # module under test
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| 9 | from display import pp_value
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| 10 | from display import ui
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| 11 | from data_lang import j8
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| 12 | from mycpp import mylib
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| 13 | from typing import Optional
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| 14 |
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| 15 | import libc
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| 16 |
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| 17 | TEST_DATA_FILENAME = os.path.join(os.path.dirname(__file__), "pretty_test.txt")
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| 18 |
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| 19 |
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| 20 | def _PrintCase(actual, expected, lineno=None):
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| 21 | if actual != expected:
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| 22 | # Print the different with real newlines, for easier reading.
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| 23 | print("ACTUAL:")
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| 24 | print(actual)
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| 25 | print("EXPECTED:")
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| 26 | print(expected)
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| 27 | print("END")
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| 28 | if lineno is not None:
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| 29 | print("ON LINE " + str(lineno + 1))
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| 30 |
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| 31 |
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| 32 | class UiTest(unittest.TestCase):
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| 33 | """Test higher level ui.PrettyPrintValue()."""
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| 34 |
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| 35 | def assertPretty(self, width, value_str, expected):
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| 36 | # type: (int, str, str, Optional[int]) -> None
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| 37 | parser = j8.Parser(value_str, True)
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| 38 | val = parser.ParseValue()
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| 39 |
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| 40 | buf = mylib.BufWriter()
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| 41 | ui.PrettyPrintValue('', val, buf, max_width=width)
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| 42 |
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| 43 | actual = buf.getvalue()
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| 44 | _PrintCase(actual, expected)
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| 45 | self.assertEqual(actual, expected)
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| 46 |
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| 47 | def testTypePrefix(self):
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| 48 | self.assertPretty(24, '[null, "ok", 15]', "(List) [null, 'ok', 15]\n")
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| 49 | self.assertPretty(23, '[null, "ok", 15]', "(List)\n[null, 'ok', 15]\n")
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| 50 |
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| 51 |
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| 52 | class PrettyTest(unittest.TestCase):
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| 53 |
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| 54 | def setUp(self):
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| 55 | # Use settings that make testing easier.
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| 56 | self.encoder = pp_value.ValueEncoder()
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| 57 | self.encoder.SetUseStyles(False)
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| 58 |
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| 59 | def assertPretty(self, width, value_str, expected, lineno=None):
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| 60 | # type: (int, str, str, Optional[int]) -> None
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| 61 | parser = j8.Parser(value_str, True)
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| 62 | val = parser.ParseValue()
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| 63 |
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| 64 | buf = mylib.BufWriter()
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| 65 |
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| 66 | doc = self.encoder.Value(val)
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| 67 |
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| 68 | printer = pretty.PrettyPrinter(width)
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| 69 | printer.PrintDoc(doc, buf)
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| 70 |
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| 71 | actual = buf.getvalue()
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| 72 | _PrintCase(actual, expected, lineno=lineno)
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| 73 | self.assertEqual(actual, expected)
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| 74 |
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| 75 | def testsFromFile(self):
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| 76 | # TODO: convert tests to this new style
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| 77 | self.encoder.ysh_style = False
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| 78 |
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| 79 | chunks = [(None, -1, [])]
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| 80 | for lineno, line in enumerate(
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| 81 | open(TEST_DATA_FILENAME).read().splitlines()):
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| 82 | if line.startswith("> "):
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| 83 | chunks[-1][2].append(line[2:])
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| 84 | elif line.startswith("#"):
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| 85 | pass
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| 86 | elif line.strip() == "":
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| 87 | pass
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| 88 | else:
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| 89 | for keyword in ["Width", "Input", "Expect"]:
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| 90 | if line.startswith(keyword):
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| 91 | if chunks[-1][0] != keyword:
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| 92 | chunks.append((keyword, lineno, []))
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| 93 | parts = line.split(" > ", 1)
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| 94 | if len(parts) == 2:
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| 95 | chunks[-1][2].append(parts[1])
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| 96 | break
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| 97 | else:
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| 98 | raise Exception(
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| 99 | "Invalid pretty printing test case line. Lines must start with one of: Width, Input, Expect, >, #",
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| 100 | line)
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| 101 |
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| 102 | test_cases = []
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| 103 | width = 80
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| 104 | value = ""
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| 105 | for (keyword, lineno, lines) in chunks:
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| 106 | block = "\n".join(lines)
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| 107 | if keyword == "Width":
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| 108 | width = int(block)
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| 109 | elif keyword == "Input":
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| 110 | value = block
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| 111 | elif keyword == "Expect":
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| 112 | test_cases.append((width, value, block, lineno))
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| 113 | else:
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| 114 | pass
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| 115 |
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| 116 | for (width, value, expected, lineno) in test_cases:
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| 117 | self.assertPretty(width, value, expected, lineno)
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| 118 |
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| 119 | def testStyles(self):
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| 120 | self.encoder.SetUseStyles(True)
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| 121 | self.assertPretty(
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| 122 | 20, '[null, "ok", 15]',
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| 123 | '[' + ansi.RED + 'null' + ansi.RESET + ", " + ansi.GREEN + "'ok'" +
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| 124 | ansi.RESET + ", " + ansi.YELLOW + '15' + ansi.RESET + ']')
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| 125 |
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| 126 |
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| 127 | if __name__ == '__main__':
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| 128 | # To simulate the OVM_MAIN patch in pythonrun.c
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| 129 | libc.cpython_reset_locale()
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| 130 | unittest.main()
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