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
|
local p_scroller = require "telescope.pickers.scroller"
local log = require "telescope.log"
log.use_console = false
local eq = assert.are.same
describe("scroller", function()
local max_results = 10
describe("ascending cycle", function()
local cycle_scroller = p_scroller.create("cycle", "ascending")
it("should return values within the max results", function()
eq(5, cycle_scroller(max_results, max_results, 5))
end)
it("should return 0 at 0", function()
eq(0, cycle_scroller(max_results, max_results, 0))
end)
it("should cycle you to the top when you go below 0", function()
eq(max_results - 1, cycle_scroller(max_results, max_results, -1))
end)
it("should cycle you to 0 when you go past the results", function()
eq(0, cycle_scroller(max_results, max_results, max_results + 1))
end)
it("should cycle when current results is less than max_results", function()
eq(0, cycle_scroller(max_results, 5, 7))
end)
end)
describe("ascending limit", function()
local limit_scroller = p_scroller.create("limit", "ascending")
it("should return values within the max results", function()
eq(5, limit_scroller(max_results, max_results, 5))
end)
it("should return 0 at 0", function()
eq(0, limit_scroller(max_results, max_results, 0))
end)
it("should not cycle", function()
eq(0, limit_scroller(max_results, max_results, -1))
end)
it("should not cycle you to 0 when you go past the results", function()
eq(max_results - 1, limit_scroller(max_results, max_results, max_results + 1))
end)
it("should stay at current results when current results is less than max_results", function()
local current = 5
eq(current - 1, limit_scroller(max_results, current, 7))
end)
end)
describe("descending cycle", function()
local cycle_scroller = p_scroller.create("cycle", "descending")
it("should return values within the max results", function()
eq(5, cycle_scroller(max_results, max_results, 5))
end)
it("should return max_results - 1 at 0", function()
eq(0, cycle_scroller(max_results, max_results, 0))
end)
it("should cycle you to the bot when you go below 0", function()
eq(max_results - 1, cycle_scroller(max_results, max_results, -1))
end)
it("should cycle you to 0 when you go past the results", function()
eq(0, cycle_scroller(max_results, max_results, max_results + 1))
end)
it("should cycle when current results is less than max_results", function()
eq(9, cycle_scroller(max_results, 5, 4))
end)
end)
describe("descending limit", function()
local limit_scroller = p_scroller.create("limit", "descending")
it("should return values within the max results", function()
eq(5, limit_scroller(max_results, max_results, 5))
end)
it("should return 0 at 0", function()
eq(0, limit_scroller(max_results, max_results, 0))
end)
it("should not cycle", function()
eq(0, limit_scroller(max_results, max_results, -1))
end)
it("should not cycle you to 0 when you go past the results", function()
eq(max_results - 1, limit_scroller(max_results, max_results, max_results + 1))
end)
it("should stay at current results when current results is less than max_results", function()
local current = 5
eq(max_results - current, limit_scroller(max_results, current, 4))
end)
end)
describe("https://github.com/nvim-telescope/telescope.nvim/pull/293#issuecomment-751463224", function()
it("should handle having many more results than necessary", function()
local scroller = p_scroller.create("cycle", "descending")
-- 23 112 23
eq(0, scroller(23, 112, 23))
end)
end)
describe("should give top, middle and bottom index", function()
it("should handle ascending", function()
eq(0, p_scroller.top("ascending", 20, 1000))
eq(19, p_scroller.bottom("ascending", 20, 1000))
eq(0, p_scroller.top("ascending", 20, 10))
eq(9, p_scroller.bottom("ascending", 20, 10))
eq(5, p_scroller.middle("ascending", 11, 100))
eq(10, p_scroller.middle("ascending", 20, 100))
eq(12, p_scroller.middle("ascending", 25, 100))
end)
it("should handle descending", function()
eq(0, p_scroller.top("descending", 20, 1000))
eq(19, p_scroller.bottom("descending", 20, 1000))
eq(10, p_scroller.top("descending", 20, 10))
eq(19, p_scroller.bottom("descending", 20, 10))
eq(25, p_scroller.middle("descending", 30, 10))
eq(50, p_scroller.middle("descending", 60, 20))
eq(105, p_scroller.middle("descending", 120, 30))
end)
end)
end)
|
