1
exercism fetch scala ocr-numbers

src/test/scala/OcrNumbersTest.scala

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
import org.scalatest.{FunSuite, Matchers}

/** @version 1.0.0 */
class OcrNumbersTest extends FunSuite with Matchers {

  test("Recognizes 0") {
    OcrNumbers.convert(List(" _ ",
                            "| |", 
                            "|_|", 
                            "   ")) should be("0")
  }

  test("Recognizes 1") {
    pending
    OcrNumbers.convert(List("   ",
                            "  |",
                            "  |",
                            "   ")) should be("1")
  }

  test("Unreadable but correctly sized inputs return ?") {
    pending
    OcrNumbers.convert(List("   ",
                            "  _",
                            "  |",
                            "   ")) should be("?")
  }

  test(
    "Input with a number of lines that is not a multiple of four raises an error") {
    pending
    OcrNumbers.convert(List(" _ ",
                            "| |",
                            "   ")) should be("?")
  }

  test(
    "Input with a number of columns that is not a multiple of three raises an error") {
    pending
    OcrNumbers.convert(List("    ",
                            "   |",
                            "   |",
                            "    ")) should be("?")
  }

  test("Recognizes 110101100") {
    pending
    OcrNumbers.convert(
      List("       _     _        _  _ ",
           "  |  || |  || |  |  || || |",
           "  |  ||_|  ||_|  |  ||_||_|",
           "                           ")) should be("110101100")
  }

  test("Garbled numbers in a string are replaced with ?") {
    pending
    OcrNumbers.convert(
      List("       _     _           _ ",
           "  |  || |  || |     || || |",
           "  |  | _|  ||_|  |  ||_||_|",
           "                           ")) should be("11?10?1?0")
  }

  test("Recognizes 2") {
    pending
    OcrNumbers.convert(List(" _ ",
                            " _|",
                            "|_ ", "   ")) should be("2")
  }

  test("Recognizes 3") {
    pending
    OcrNumbers.convert(List(" _ ",
                            " _|",
                            " _|",
                            "   ")) should be("3")
  }

  test("Recognizes 4") {
    pending
    OcrNumbers.convert(List("   ",
                            "|_|",
                            "  |",
                            "   ")) should be("4")
  }

  test("Recognizes 5") {
    pending
    OcrNumbers.convert(List(" _ ",
                            "|_ ",
                            " _|",
                            "   ")) should be("5")
  }

  test("Recognizes 6") {
    pending
    OcrNumbers.convert(List(" _ ",
                            "|_ ",
                            "|_|",
                            "   ")) should be("6")
  }

  test("Recognizes 7") {
    pending
    OcrNumbers.convert(List(" _ ",
                            "  |",
                            "  |",
                            "   ")) should be("7")
  }

  test("Recognizes 8") {
    pending
    OcrNumbers.convert(List(" _ ",
                            "|_|",
                            "|_|",
                            "   ")) should be("8")
  }

  test("Recognizes 9") {
    pending
    OcrNumbers.convert(List(" _ ",
                            "|_|",
                            " _|",
                            "   ")) should be("9")
  }

  test("Recognizes string of decimal numbers") {
    pending
    OcrNumbers.convert(
      List("    _  _     _  _  _  _  _  _ ",
           "  | _| _||_||_ |_   ||_||_|| |",
           "  ||_  _|  | _||_|  ||_| _||_|",
           "                              ")) should be("1234567890")
  }

  test(
    "Numbers separated by empty lines are recognized. Lines are joined by commas.") {
    pending
    OcrNumbers.convert(
      List("    _  _ ",
           "  | _| _|",
           "  ||_  _|",
           "         ",
           "    _  _ ",
           "|_||_ |_ ",
           "  | _||_|",
           "         ",
           " _  _  _ ",
           "  ||_||_|",
           "  ||_| _|",
           "         ")) should be("123,456,789")
  }
}