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|
-- Allow testing without installing,
package.path = "src/?.lua;"..package.path
local LineScanner = require("luacov.reporter").LineScanner
local ntests = 0
-- source must contain "+", "?" or "-" at the end of each line,
-- marking expected output: "+" for always included lines, "?" for lines
-- included when hit, "-" for excluded lines.
local function test(source)
ntests = ntests + 1
local lines = {}
local failed = false
local scanner = LineScanner:new()
for line in source:gmatch("[^\n]+") do
local expected_symbol = line:sub(-1)
line = line:sub(1, -2)
local always_excluded, excluded_when_not_hit = scanner:consume(line)
local actual_symbol = always_excluded and "-" or (excluded_when_not_hit and "?" or "+")
if actual_symbol ~= expected_symbol then
failed = true
end
table.insert(lines, line..expected_symbol.." "..actual_symbol)
end
if failed then
error(("LineScanner test #%d failed!\nLine/expected/actual:\n\n%s"):format(
ntests, table.concat(lines, "\n")
), 0)
end
end
test [[
local thing = nil ?
print("test1") +
]]
test [[
local stuff = function (x) return x end +
local thing = stuff({ +
b = { name = 'bob', ?
}, ?
-- comment -
}) ?
print("test2") +
]]
test [[
local stuff = function (x) return x end +
local thing = stuff({ +
b = { name = 'bob', ?
}, ?
-- comment -
} ?
) ?
print("test2") +
]]
test [[
if true then -
print("test3") +
end -
]]
test [[
if true then -
end -
print("test3") +
]]
test [[
while true do -
print("test4") +
break ?
end -
]]
test [[
local a, b = 1,2 +
if -
a < b +
then -
a = b +
end -
print("test7") +
]]
test [[
local a,b = 1,2 +
if a < b then +
a = b +
end; -
-
local function foo(f) f() end +
foo(function() +
a = b +
end) -
-
print("test8") +
]]
test [[
local function foo(f) -
return function() ?
a = a +
end -
end -
foo()() +
-
print("test9") +
]]
-- Line 'c = 3' should be excluded, but can not because it looks like an assignment.
test [[
local s = { +
a = 1; ?
b = 2, ?
c = 3 +
} ?
-
print("test10") +
]]
-- Line 'return 1, 2, function()' is supposed to be excluded,
-- but corresponding exclusion rule is bugged, see #27.
test [[
local function foo(f) -
return 1, 2, function() +
a = a +
end -
end -
local a,b,c = foo() +
c() +
-
print("test11") +
]]
-- Lines inside long strings.
test [=[
print([[ +
some long string -
]==] -
still going -
end]]) +
]=]
-- Assignments of long strings.
test [=[
local s = [[ ?
abc -
]] +
]=]
test [=[
s = [[ ?
abc -
]] +
]=]
test [=[
t.k = [[ ?
abc -
]] +
]=]
test [=[
t.k1.k2 = [[ +
abc -
]] +
]=]
test [=[
t["k"] = [[ ?
abc -
]] +
]=]
-- Inline long comments.
test [=[
local function foo(--[[unused]] x) -
return x +
end -
]=]
-- Chaotic whitespace.
test [=[
while true do -
end -
]=]
-- Strange strings.
test [=[
local a = "[[\ ?
]]\ -
print(b)" +
print(a) +
]=]
test [=[
local a = ("\ ?
local function(") +
]=]
-- String declarations with parentheses.
test [=[
local a = ([[ ?
format %string -
]]):format(var) +
]=]
-- Incomplete function declarations.
test [[
local function fff(a, -
b, -
c) -
return a + b + c +
end -
]]
test [[
local function fff( -
a, b, c) -
return a + b + c +
end -
]]
test [[
local function fff -
(a, b, c) -
return a + b + c +
end -
]]
-- Local declarations
test [[
local function f() end +
local x -
local x, y -
local x = -
1 ?
local x, y = -
2, 3 +
local x, y = 2, +
3 ?
]]
test [[
local x = nil ?
-
for i = 1, 100 do +
x = 1 +
end -
]]
-- Multiline declarations in tables.
test [=[
local t = { +
["1"] = function() ?
foo() +
end, -
["2"] = ([[ ?
%s -
]]):format(var), +
["3"] = [[ ?
bar() -
]] +
} ?
]=]
-- Single expressions in tables and calls.
test [=[
local x = { +
1, ?
2 ?
} ?
local y = { +
3, ?
id ?
} ?
local z = { +
"" ?
} ?
local a = f( +
true ?
) ?
local b = { +
id[1] ?
} ?
local c = { +
id.abcd ?
} ?
local d = { +
id.k1.k2 +
} ?
local e = { +
{}, ?
{} ?
} ?
local f = { +
{foo} +
} ?
]=]
-- Hanging table endings.
test [[
local v = f({ +
a = "foo", ?
x = y +
}, ?
function(g) ?
g() +
end) -
]]
test [[
local v = f({ +
a = "foo", ?
x = y +
}, function(g) ?
g() +
end) -
]]
print(("%d LineScanner tests passed."):format(ntests))
|
