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@@ -1,108 +1,120 b'' | |||
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1 | 1 | """Tests for IPython.lib.pretty. |
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2 | 2 | """ |
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3 | 3 | #----------------------------------------------------------------------------- |
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4 | 4 | # Copyright (c) 2011, the IPython Development Team. |
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5 | 5 | # |
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6 | 6 | # Distributed under the terms of the Modified BSD License. |
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7 | 7 | # |
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8 | 8 | # The full license is in the file COPYING.txt, distributed with this software. |
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9 | 9 | #----------------------------------------------------------------------------- |
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10 | 10 | |
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11 | 11 | #----------------------------------------------------------------------------- |
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12 | 12 | # Imports |
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13 | 13 | #----------------------------------------------------------------------------- |
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14 | 14 | from __future__ import print_function |
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15 | 15 | |
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16 | 16 | # Third-party imports |
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17 | 17 | import nose.tools as nt |
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18 | 18 | |
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19 | 19 | # Our own imports |
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20 | 20 | from IPython.lib import pretty |
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21 | 21 | from IPython.testing.decorators import skip_without |
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22 | 22 | |
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23 | 23 | #----------------------------------------------------------------------------- |
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24 | 24 | # Classes and functions |
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25 | 25 | #----------------------------------------------------------------------------- |
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26 | 26 | |
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27 | 27 | class MyList(object): |
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28 | 28 | def __init__(self, content): |
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29 | 29 | self.content = content |
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30 | 30 | def _repr_pretty_(self, p, cycle): |
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31 | 31 | if cycle: |
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32 | 32 | p.text("MyList(...)") |
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33 | 33 | else: |
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34 | 34 | with p.group(3, "MyList(", ")"): |
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35 | 35 | for (i, child) in enumerate(self.content): |
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36 | 36 | if i: |
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37 | 37 | p.text(",") |
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38 | 38 | p.breakable() |
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39 | 39 | else: |
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40 | 40 | p.breakable("") |
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41 | 41 | p.pretty(child) |
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42 | 42 | |
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43 | 43 | |
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44 | 44 | class MyDict(dict): |
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45 | 45 | def _repr_pretty_(self, p, cycle): |
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46 | 46 | p.text("MyDict(...)") |
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47 | 47 | |
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48 | 48 | |
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49 | 49 | class Dummy1(object): |
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50 | 50 | def _repr_pretty_(self, p, cycle): |
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51 | 51 | p.text("Dummy1(...)") |
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52 | 52 | |
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53 | 53 | class Dummy2(Dummy1): |
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54 | 54 | _repr_pretty_ = None |
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55 | 55 | |
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56 | class NoModule(object): | |
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57 | pass | |
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58 | ||
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59 | NoModule.__module__ = None | |
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60 | ||
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56 | 61 | |
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57 | 62 | def test_indentation(): |
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58 | 63 | """Test correct indentation in groups""" |
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59 | 64 | count = 40 |
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60 | 65 | gotoutput = pretty.pretty(MyList(range(count))) |
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61 | 66 | expectedoutput = "MyList(\n" + ",\n".join(" %d" % i for i in range(count)) + ")" |
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62 | 67 | |
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63 | 68 | nt.assert_equal(gotoutput, expectedoutput) |
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64 | 69 | |
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65 | 70 | |
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66 | 71 | def test_dispatch(): |
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67 | 72 | """ |
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68 | 73 | Test correct dispatching: The _repr_pretty_ method for MyDict |
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69 | 74 | must be found before the registered printer for dict. |
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70 | 75 | """ |
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71 | 76 | gotoutput = pretty.pretty(MyDict()) |
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72 | 77 | expectedoutput = "MyDict(...)" |
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73 | 78 | |
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74 | 79 | nt.assert_equal(gotoutput, expectedoutput) |
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75 | 80 | |
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76 | 81 | |
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77 | 82 | def test_callability_checking(): |
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78 | 83 | """ |
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79 | 84 | Test that the _repr_pretty_ method is tested for callability and skipped if |
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80 | 85 | not. |
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81 | 86 | """ |
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82 | 87 | gotoutput = pretty.pretty(Dummy2()) |
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83 | 88 | expectedoutput = "Dummy1(...)" |
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84 | 89 | |
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85 | 90 | nt.assert_equal(gotoutput, expectedoutput) |
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86 | 91 | |
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87 | 92 | |
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88 | 93 | def test_sets(): |
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89 | 94 | """ |
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90 | 95 | Test that set and frozenset use Python 3 formatting. |
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91 | 96 | """ |
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92 | 97 | objects = [set(), frozenset(), set([1]), frozenset([1]), set([1, 2]), |
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93 | 98 | frozenset([1, 2]), set([-1, -2, -3])] |
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94 | 99 | expected = ['set()', 'frozenset()', '{1}', 'frozenset({1})', '{1, 2}', |
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95 | 100 | 'frozenset({1, 2})', '{-3, -2, -1}'] |
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96 | 101 | for obj, expected_output in zip(objects, expected): |
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97 | 102 | got_output = pretty.pretty(obj) |
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98 | 103 | yield nt.assert_equal, got_output, expected_output |
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99 | 104 | |
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100 | 105 | |
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101 | 106 | @skip_without('xxlimited') |
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102 | 107 | def test_pprint_heap_allocated_type(): |
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103 | 108 | """ |
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104 | 109 | Test that pprint works for heap allocated types. |
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105 | 110 | """ |
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106 | 111 | import xxlimited |
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107 | 112 | output = pretty.pretty(xxlimited.Null) |
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108 | 113 | nt.assert_equal(output, 'xxlimited.Null') |
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114 | ||
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115 | def test_pprint_nomod(): | |
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116 | """ | |
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117 | Test that pprint works for classes with no __module__. | |
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118 | """ | |
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119 | output = pretty.pretty(NoModule) | |
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120 | nt.assert_equal(output, 'NoModule') |
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