envars/test/envars_test.exs

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2024-09-23 20:59:32 -04:00
defmodule EnvarsTest do
use ExUnit.Case
describe "Envars.read!/1" do
setup do
System.put_env("STRING_VAR", "FOOBAR")
System.put_env("INTEGER_VAR", "123")
System.put_env("BOOLEAN_VAR_1", "1")
System.put_env("BOOLEAN_VAR_2", "0")
System.put_env("BOOLEAN_VAR_3", "True")
System.put_env("BOOLEAN_VAR_4", "FALSE")
end
test "parses environment variables and uses defaults" do
assert %{
"STRING_VAR" => "FOOBAR",
"INTEGER_VAR" => 123,
"UNDEFINED_VAR" => nil,
"BOOLEAN_VAR_1" => true,
"BOOLEAN_VAR_2" => false,
"BOOLEAN_VAR_3" => true,
"BOOLEAN_VAR_4" => false,
"DEFAULTED_VAR" => "<default value>"
} ==
Envars.read!(%{
"STRING_VAR" => [type: :string, required: true],
"INTEGER_VAR" => [type: :integer, default: 10],
"UNDEFINED_VAR" => [required: false],
"BOOLEAN_VAR_1" => [type: :boolean],
"BOOLEAN_VAR_2" => [type: :boolean],
"BOOLEAN_VAR_3" => [type: :boolean],
"BOOLEAN_VAR_4" => [type: :boolean],
"DEFAULTED_VAR" => [required: true, default: "<default value>"]
})
end
test "raises and error with ALL missing environment variables" do
assert_raise RuntimeError, ~r/MISSING_1\n - MISSING_2/, fn ->
Envars.read!(%{"MISSING_1" => [], "MISSING_2" => []})
end
end
end
end