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
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
return describe("if assignment", function()
it("should assign and check truthy value", function()
local obj = {
find_user = function(name)
return name == "valid" and {
name = name
} or nil
end
}
local user = obj:find_user("valid")
if user then
return assert.same(user.name, "valid")
end
end)
it("should not enter block when nil", function()
local obj = {
find_user = function()
return nil
end
}
local user = obj:find_user()
if user then
return assert.is_true(false)
else
return assert.is_true(true)
end
end)
it("should work with elseif", function()
local get_value
get_value = function(key)
if "a" == key then
return 1
elseif "b" == key then
return 2
else
return nil
end
end
local result = nil
do
local val = get_value("c")
if val then
result = "c: " .. tostring(val)
else
val = get_value("b")
if val then
result = "b: " .. tostring(val)
else
result = "no match"
end
end
end
return assert.same(result, "b: 2")
end)
it("should scope variable to if block", function()
do
local x = 10
if x then
assert.same(x, 10)
end
end
return assert.is_true(true)
end)
it("should work with multiple return values", function()
local fn
fn = function()
return true, "success"
end
local success, result = fn()
if success then
assert.is_true(success)
return assert.same(result, "success")
end
end)
it("should work with table destructuring", function()
local get_point
get_point = function()
return {
x = 10,
y = 20
}
end
local _des_0 = get_point()
if _des_0 then
local x, y = _des_0.x, _des_0.y
assert.same(x, 10)
return assert.same(y, 20)
end
end)
it("should work with array destructuring", function()
local get_coords
get_coords = function()
return {
1,
2,
3
}
end
local _des_0 = get_coords()
if _des_0 then
local a, b, c = _des_0[1], _des_0[2], _des_0[3]
assert.same(a, 1)
assert.same(b, 2)
return assert.same(c, 3)
end
end)
it("should chain multiple assignments", function()
local a = 1
if a then
local b = a + 1
if b then
return assert.same(b, 2)
end
end
end)
it("should work in expression context", function()
local get_value
get_value = function(x)
if x > 0 then
return x
else
return nil
end
end
local result
do
local val = get_value(5)
if val then
result = val * 2
else
result = 0
end
end
return assert.same(result, 10)
end)
it("should work with os.getenv", function()
local path = os.getenv("PATH")
if path then
return assert.is_true(type(path) == "string")
else
return assert.is_true(true)
end
end)
it("should support table access", function()
local tb = {
key = "value"
}
local val = tb.key
if val then
return assert.same(val, "value")
end
end)
it("should work with function call results", function()
local fn
fn = function()
return "result"
end
local s = fn()
if s then
return assert.same(s, "result")
end
end)
return it("should handle false values", function()
local val = false
if val then
return assert.is_true(false)
else
return assert.is_true(true)
end
end)
end)
|
