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defmodule Cepis.LookupTest do
use Cepis.ServerCase
test "resolves a CEP", %{server: server, client: client} do
FakeServer.respond(server, "/01001000", {200, json(address_fixture()), []})
assert {:ok, address} = Cepis.lookup("01001-000", client)
assert address.logradouro == "Praça da Sé"
assert address.localidade == "São Paulo"
assert address.uf == "SP"
assert Cepis.Address.formatted_cep(address) == "01001-000"
assert address.geo == nil
end
test "reads the coordinate when the API sends one", %{server: server, client: client} do
body =
address_fixture(%{
"geo" => %{"lat" => -23.5, "lon" => -46.6, "raio_m" => 120, "precisao" => "logradouro"}
})
FakeServer.respond(server, "/01310100", {200, json(body), []})
assert {:ok, address} = Cepis.lookup("01310100", client)
assert address.geo.lat == -23.5
assert address.geo.lon == -46.6
assert address.geo.raio_m == 120
assert Cepis.Geo.precise?(address.geo)
end
test "a municipality centroid is not precise", %{server: server, client: client} do
body =
address_fixture(%{
"geo" => %{"lat" => -23.5, "lon" => -46.6, "raio_m" => 22_000, "precisao" => "localidade"}
})
FakeServer.respond(server, "/01001000", {200, json(body), []})
assert {:ok, address} = Cepis.lookup("01001000", client)
refute Cepis.Geo.precise?(address.geo)
end
test "a malformed geo block does not lose the address", %{server: server, client: client} do
body =
address_fixture(%{
"geo" => %{
"lat" => "not a number",
"lon" => "-46.6",
"raio_m" => "120",
"precisao" => "logradouro"
}
})
FakeServer.respond(server, "/01001000", {200, json(body), []})
assert {:ok, address} = Cepis.lookup("01001000", client)
assert address.geo == nil
assert address.localidade == "São Paulo"
end
test "a truncated geo block does not lose the address", %{server: server, client: client} do
FakeServer.respond(server, "/01001000", {200, json(address_fixture(%{"geo" => %{}})), []})
assert {:ok, address} = Cepis.lookup("01001000", client)
assert address.geo == nil
assert address.uf == "SP"
end
test "a field the API grows is kept in raw", %{server: server, client: client} do
body = address_fixture(%{"campo_do_futuro" => "value"})
FakeServer.respond(server, "/01001000", {200, json(body), []})
assert {:ok, address} = Cepis.lookup("01001000", client)
assert address.raw["campo_do_futuro"] == "value"
assert address.localidade == "São Paulo"
end
test "a missing CEP is a not-found error", %{server: server, client: client} do
FakeServer.respond(
server,
"/99999999",
{404, json(%{"erro" => "cep_nao_encontrado", "mensagem" => "gone"}), []}
)
assert {:error, %Cepis.NotFoundError{cep: "99999999"} = error} =
Cepis.lookup("99999999", client)
assert Exception.message(error) =~ "99999999"
end
test "a 404 is never retried", %{server: server, client: client} do
FakeServer.respond(server, "/99999999", {404, json(%{"erro" => "cep_nao_encontrado"}), []})
assert {:error, %Cepis.NotFoundError{}} = Cepis.lookup("99999999", client)
assert FakeServer.count(server, "/99999999") == 1
end
test "a malformed CEP never leaves the machine", %{server: server, client: client} do
assert {:error, %Cepis.InvalidCEPError{}} = Cepis.lookup("123", client)
assert FakeServer.calls(server) == []
end
test "a 400 carries the API's own message", %{server: server, client: client} do
FakeServer.respond(
server,
"/00000000",
{400, json(%{"erro" => "cep_invalido", "mensagem" => "rejected by the API"}), []}
)
assert {:error, %Cepis.InvalidCEPError{} = error} = Cepis.lookup("00000000", client)
assert Exception.message(error) =~ "rejected by the API"
end
test "a 400 is never retried", %{server: server, client: client} do
FakeServer.respond(server, "/00000000", {400, json(%{"erro" => "cep_invalido"}), []})
assert {:error, %Cepis.InvalidCEPError{}} = Cepis.lookup("00000000", client)
assert FakeServer.count(server, "/00000000") == 1
end
test "a captive portal answering instead of the API is diagnosed", %{
server: server,
client: client
} do
FakeServer.respond(server, "/01001000", {200, "<html>captive portal</html>", []})
assert {:error, %Cepis.InvalidResponseError{} = error} = Cepis.lookup("01001000", client)
assert Exception.message(error) =~ "captive portal"
end
test "a JSON body that is not an object is rejected", %{server: server, client: client} do
FakeServer.respond(server, "/01001000", {200, "[1,2,3]", []})
assert {:error, %Cepis.InvalidResponseError{}} = Cepis.lookup("01001000", client)
end
test "the bang variant returns the address and raises on failure", %{
server: server,
client: client
} do
FakeServer.respond(server, "/01001000", {200, json(address_fixture()), []})
assert %Cepis.Address{uf: "SP"} = Cepis.lookup!("01001000", client)
assert_raise Cepis.NotFoundError, fn -> Cepis.lookup!("99999999", client) end
end
test "keyword options work in place of a client struct", %{server: server} do
FakeServer.respond(server, "/01001000", {200, json(address_fixture()), []})
assert {:ok, address} = Cepis.lookup("01001000", base_url: server.url, timeout: 5_000)
assert address.localidade == "São Paulo"
end
end
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