nim-confutils/tests/test_envvar.nim

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import
std/options,
unittest2,
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../confutils/envvar/envvar_serialization,
../confutils/envvar/utils
const
commonPrefix = "Nimbus"
template readWrite(key: string, val: typed) =
test key:
setValue(key, val)
var outVal: type val
getValue(key, outVal)
check outVal == val
proc testUtils() =
type
Fruit = enum
Apple
suite "envvar utils test suite":
readWrite("some number", 123'u32)
readWrite("some number 64", 123'u64)
readWrite("some bytes", @[1.byte, 2.byte])
readWrite("some int list", @[4,5,6])
readWrite("some array", [1.byte, 2.byte, 4.byte])
readWrite("some string", "hello world")
readWrite("some enum", Apple)
readWrite("some boolean", true)
readWrite("some float32", 1.234'f32)
readWrite("some float64", 1.234'f64)
proc testEncoder() =
type
Class = enum
Truck
MPV
SUV
Fuel = enum
Gasoline
Diesel
Engine = object
cylinder: int
valve: int16
fuel: Fuel
Suspension = object
dist: int
length: int
Vehicle = object
name: string
color: int
class: Class
engine: Engine
wheel: int
suspension: array[3, Suspension]
door: array[4, int]
antennae: Option[int]
bumper: Option[string]
suite "envvar encoder test suite":
test "basic encoder and decoder":
let v = Vehicle(
name: "buggy",
color: 213,
class: MPV,
engine: Engine(
cylinder: 3,
valve: 2,
fuel: Diesel
),
wheel: 6,
door: [1,2,3,4],
suspension: [
Suspension(dist: 1, length: 5),
Suspension(dist: 2, length: 6),
Suspension(dist: 3, length: 7)
],
bumper: some("Chromium")
)
Envvar.encode(commonPrefix, v)
let x = Envvar.decode(commonPrefix, Vehicle)
check x == v
check x.antennae.isNone
check x.bumper.get() == "Chromium"
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type
ValidIpAddress {.requiresInit.} = object
value: string
TestObject = object
address: Option[ValidIpAddress]
proc readValue(r: var EnvvarReader, value: var ValidIpAddress) =
r.readValue(value.value)
proc writeValue(w: var EnvvarWriter, value: ValidIpAddress) =
w.writeValue(value.value)
proc testOptionalFields() =
suite "optional fields test suite":
test "optional field with requiresInit pragma":
var z = TestObject(address: some(ValidIpAddress(value: "1.2.3.4")))
Envvar.saveFile(commonPrefix, z)
var x = Envvar.loadFile(commonPrefix, TestObject)
check x.address.isSome
check x.address.get().value == "1.2.3.4"
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testUtils()
testEncoder()
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testOptionalFields()