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luaplot/plot_test.lua at master · thewizardplusplus/luaplot · GitHub
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local
luaunit
=
require
(
"
luaunit
"
)
local
checks
=
require
(
"
luatypechecks.checks
"
)
local
Plot
=
require
(
"
luaplot.plot
"
)
--
luacheck: globals TestPlot
TestPlot
=
{}
function
TestPlot
.
test_new_full
()
local
plot
=
Plot
:
new
(
5
,
32
,
23
,
42
)
luaunit
.
assert_is_table
(
plot
)
luaunit
.
assert_true
(
checks
.
is_instance
(
plot
,
Plot
))
luaunit
.
assert_is_table
(
plot
.
_points
)
luaunit
.
assert_equals
(
plot
.
_points
, {
32
,
32
,
32
,
32
,
32
})
luaunit
.
assert_is_number
(
plot
.
_default
)
luaunit
.
assert_equals
(
plot
.
_default
,
32
)
luaunit
.
assert_is_number
(
plot
.
_minimum
)
luaunit
.
assert_equals
(
plot
.
_minimum
,
23
)
luaunit
.
assert_is_number
(
plot
.
_maximum
)
luaunit
.
assert_equals
(
plot
.
_maximum
,
42
)
end
function
TestPlot
.
test_new_partial
()
local
plot
=
Plot
:
new
(
5
)
luaunit
.
assert_is_table
(
plot
)
luaunit
.
assert_true
(
checks
.
is_instance
(
plot
,
Plot
))
luaunit
.
assert_is_table
(
plot
.
_points
)
luaunit
.
assert_equals
(
plot
.
_points
, {
0
,
0
,
0
,
0
,
0
})
luaunit
.
assert_is_number
(
plot
.
_default
)
luaunit
.
assert_equals
(
plot
.
_default
,
0
)
luaunit
.
assert_is_number
(
plot
.
_minimum
)
luaunit
.
assert_equals
(
plot
.
_minimum
,
0
)
luaunit
.
assert_is_number
(
plot
.
_maximum
)
luaunit
.
assert_equals
(
plot
.
_maximum
,
1
)
end
function
TestPlot
.
test_index_middle
()
local
plot
=
Plot
:
new
(
0
,
0.5
)
for
i
=
1
,
5
do
plot
:
push
(
i
/
10
)
end
local
point
=
plot
[
3
]
luaunit
.
assert_is_number
(
point
)
luaunit
.
assert_equals
(
point
,
0.3
)
end
function
TestPlot
.
test_index_middle_fractional_increase
()
local
plot
=
Plot
:
new
(
0
,
0.5
)
for
i
=
1
,
5
do
plot
:
push
(
i
/
10
)
end
local
point
=
plot
[
3.2
]
luaunit
.
assert_is_number
(
point
)
luaunit
.
assert_equals
(
point
,
0.32
)
end
function
TestPlot
.
test_index_middle_fractional_decrease
()
local
plot
=
Plot
:
new
(
0
,
-
0.5
,
-
1
,
0
)
for
i
=
1
,
5
do
plot
:
push
(
-
i
/
10
)
end
local
point
=
plot
[
3.2
]
luaunit
.
assert_is_number
(
point
)
luaunit
.
assert_equals
(
point
,
-
0.32
)
end
function
TestPlot
.
test_index_start
()
local
plot
=
Plot
:
new
(
0
,
0.5
)
for
i
=
1
,
5
do
plot
:
push
(
i
/
10
)
end
local
point
=
plot
[
1
]
luaunit
.
assert_is_number
(
point
)
luaunit
.
assert_equals
(
point
,
0.1
)
end
function
TestPlot
.
test_index_end
()
local
plot
=
Plot
:
new
(
0
,
0.5
)
for
i
=
1
,
5
do
plot
:
push
(
i
/
10
)
end
local
point
=
plot
[
5
]
luaunit
.
assert_is_number
(
point
)
luaunit
.
assert_equals
(
point
,
0.5
)
end
function
TestPlot
.
test_index_after_end
()
local
plot
=
Plot
:
new
(
0
,
0.5
)
for
i
=
1
,
5
do
plot
:
push
(
i
/
10
)
end
local
result
=
plot
[
6
]
luaunit
.
assert_is_nil
(
result
)
end
function
TestPlot
.
test_index_after_end_fractional_increase
()
local
plot
=
Plot
:
new
(
0
,
0.5
)
for
i
=
1
,
5
do
plot
:
push
(
i
/
10
)
end
local
result
=
plot
[
5.2
]
luaunit
.
assert_is_nil
(
result
)
end
function
TestPlot
.
test_index_after_end_fractional_decrease
()
local
plot
=
Plot
:
new
(
0
,
-
0.5
,
-
1
,
0
)
for
i
=
1
,
5
do
plot
:
push
(
-
i
/
10
)
end
local
result
=
plot
[
5.2
]
luaunit
.
assert_is_nil
(
result
)
end
function
TestPlot
.
test_ipairs_function
()
if
_VERSION
==
"
Lua 5.1
"
then
local
message
=
"
Lua 5.1 doesn't support for customizing the `ipairs()` function
"
luaunit
.
skip
(
message
)
end
local
plot
=
Plot
:
new
(
0
,
0.5
)
for
i
=
1
,
5
do
plot
:
push
(
i
/
10
)
end
local
points
=
{}
for
index
,
point
in
ipairs
(
plot
)
do
table.insert
(
points
, {
index
=
index
,
point
=
point
})
end
luaunit
.
assert_equals
(
points
, {
{
index
=
1
,
point
=
0.1
},
{
index
=
2
,
point
=
0.2
},
{
index
=
3
,
point
=
0.3
},
{
index
=
4
,
point
=
0.4
},
{
index
=
5
,
point
=
0.5
},
})
end
function
TestPlot
.
test_ipairs_function_empty
()
if
_VERSION
==
"
Lua 5.1
"
then
local
message
=
"
Lua 5.1 doesn't support for customizing the `ipairs()` function
"
luaunit
.
skip
(
message
)
end
local
plot
=
Plot
:
new
(
0
,
0.5
)
local
points
=
{}
for
index
,
point
in
ipairs
(
plot
)
do
table.insert
(
points
, {
index
=
index
,
point
=
point
})
end
luaunit
.
assert_equals
(
points
, {})
end
function
TestPlot
.
test_ipairs_metamethod
()
local
plot
=
Plot
:
new
(
0
,
0.5
)
for
i
=
1
,
5
do
plot
:
push
(
i
/
10
)
end
local
points
=
{}
for
index
,
point
in
plot
:
__ipairs
()
do
table.insert
(
points
, {
index
=
index
,
point
=
point
})
end
luaunit
.
assert_equals
(
points
, {
{
index
=
1
,
point
=
0.1
},
{
index
=
2
,
point
=
0.2
},
{
index
=
3
,
point
=
0.3
},
{
index
=
4
,
point
=
0.4
},
{
index
=
5
,
point
=
0.5
},
})
end
function
TestPlot
.
test_ipairs_metamethod_empty
()
local
plot
=
Plot
:
new
(
0
,
0.5
)
local
points
=
{}
for
index
,
point
in
plot
:
__ipairs
()
do
table.insert
(
points
, {
index
=
index
,
point
=
point
})
end
luaunit
.
assert_equals
(
points
, {})
end
function
TestPlot
.
test_tostring
()
local
plot
=
Plot
:
new
(
5
,
32
,
23
,
42
)
local
text
=
tostring
(
plot
)
luaunit
.
assert_is_string
(
text
)
luaunit
.
assert_equals
(
text
,
"
{
"
..
"
__name =
\"
Plot
\"
,
"
..
"
default = 32,
"
..
"
maximum = 42,
"
..
"
minimum = 23,
"
..
"
points = { 32, 32, 32, 32, 32 }
"
..
"
}
"
)
end
function
TestPlot
.
test_push_in_range
()
local
plot
=
Plot
:
new
(
5
,
0.5
)
plot
:
push
(
0.2
)
luaunit
.
assert_is_table
(
plot
.
_points
)
luaunit
.
assert_equals
(
plot
.
_points
, {
0.5
,
0.5
,
0.5
,
0.5
,
0.5
,
0.2
})
end
function
TestPlot
.
test_push_too_less
()
local
plot
=
Plot
:
new
(
5
,
0.5
)
plot
:
push
(
-
0.2
)
luaunit
.
assert_is_table
(
plot
.
_points
)
luaunit
.
assert_equals
(
plot
.
_points
, {
0.5
,
0.5
,
0.5
,
0.5
,
0.5
,
0
})
end
function
TestPlot
.
test_push_too_greater
()
local
plot
=
Plot
:
new
(
5
,
0.5
)
plot
:
push
(
1.2
)
luaunit
.
assert_is_table
(
plot
.
_points
)
luaunit
.
assert_equals
(
plot
.
_points
, {
0.5
,
0.5
,
0.5
,
0.5
,
0.5
,
1
})
end
function
TestPlot
.
test_push_empty
()
local
plot
=
Plot
:
new
(
0
,
0.5
)
plot
:
push
(
0.2
)
luaunit
.
assert_is_table
(
plot
.
_points
)
luaunit
.
assert_equals
(
plot
.
_points
, {
0.2
})
end
function
TestPlot
.
test_push_with_factor_in_range_positive
()
local
plot
=
Plot
:
new
(
5
,
0.5
)
plot
:
push_with_factor
(
0.2
)
luaunit
.
assert_is_table
(
plot
.
_points
)
luaunit
.
assert_equals
(
plot
.
_points
, {
0.5
,
0.5
,
0.5
,
0.5
,
0.5
,
0.7
})
end
function
TestPlot
.
test_push_with_factor_in_range_negative
()
local
plot
=
Plot
:
new
(
5
,
0.5
)
plot
:
push_with_factor
(
-
0.2
)
luaunit
.
assert_is_table
(
plot
.
_points
)
luaunit
.
assert_equals
(
plot
.
_points
, {
0.5
,
0.5
,
0.5
,
0.5
,
0.5
,
0.3
})
end
function
TestPlot
.
test_push_with_factor_out_range
()
local
plot
=
Plot
:
new
(
5
,
0.5
)
plot
:
push_with_factor
(
0.6
)
luaunit
.
assert_is_table
(
plot
.
_points
)
luaunit
.
assert_equals
(
plot
.
_points
, {
0.5
,
0.5
,
0.5
,
0.5
,
0.5
,
1
})
end
function
TestPlot
.
test_push_with_factor_empty
()
local
plot
=
Plot
:
new
(
0
,
0.5
)
plot
:
push_with_factor
(
0.2
)
luaunit
.
assert_is_table
(
plot
.
_points
)
luaunit
.
assert_equals
(
plot
.
_points
, {
0.7
})
end
function
TestPlot
.
test_push_with_random_factor
()
math.randomseed
(
1
)
local
plot
=
Plot
:
new
(
5
,
0.5
)
plot
:
push_with_random_factor
(
0.2
)
local
last_point
if
_VERSION
==
"
Lua 5.5
"
or
_VERSION
==
"
Lua 5.4
"
then
last_point
=
0.626235
elseif
_VERSION
==
"
Lua 5.3
"
or
_VERSION
==
"
Lua 5.2
"
then
last_point
=
0.457753
elseif
_VERSION
==
"
Lua 5.1
"
then
if
checks
.
is_table
(
jit
)
then
--
check for LuaJIT
last_point
=
0.429524
else
last_point
=
0.636075
end
end
luaunit
.
assert_is_table
(
plot
.
_points
)
luaunit
.
assert_equals
(
#
plot
.
_points
,
6
)
luaunit
.
assert_almost_equals
(
plot
.
_points
[
6
],
last_point
,
1e-6
)
end
function
TestPlot
.
test_shift
()
local
plot
=
Plot
:
new
(
0
,
0.5
)
for
i
=
1
,
5
do
plot
:
push
(
i
/
10
)
end
local
first_point
=
plot
:
shift
()
luaunit
.
assert_is_table
(
plot
.
_points
)
luaunit
.
assert_equals
(
plot
.
_points
, {
0.2
,
0.3
,
0.4
,
0.5
})
luaunit
.
assert_is_number
(
first_point
)
luaunit
.
assert_equals
(
first_point
,
0.1
)
end
function
TestPlot
.
test_shift_empty
()
local
plot
=
Plot
:
new
(
0
,
0.5
)
local
first_point
=
plot
:
shift
()
luaunit
.
assert_is_table
(
plot
.
_points
)
luaunit
.
assert_equals
(
plot
.
_points
, {})
luaunit
.
assert_is_number
(
first_point
)
luaunit
.
assert_equals
(
first_point
,
0.5
)
end
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