mirror of https://github.com/grpc/grpc-go.git
104 lines
2.4 KiB
Go
104 lines
2.4 KiB
Go
/*
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*
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* Copyright 2022 gRPC authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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package envconfig
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import (
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"os"
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"testing"
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"google.golang.org/grpc/internal/grpctest"
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)
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type s struct {
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grpctest.Tester
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}
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func Test(t *testing.T) {
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grpctest.RunSubTests(t, s{})
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}
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func (s) TestUint64FromEnv(t *testing.T) {
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var testCases = []struct {
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name string
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val string
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def, min, max uint64
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want uint64
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}{
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{
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name: "error parsing",
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val: "asdf", def: 5, want: 5,
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}, {
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name: "unset",
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val: "", def: 5, want: 5,
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}, {
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name: "too low",
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val: "5", min: 10, want: 10,
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}, {
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name: "too high",
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val: "5", max: 2, want: 2,
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}, {
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name: "in range",
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val: "17391", def: 13000, min: 12000, max: 18000, want: 17391,
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},
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}
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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const testVar = "testvar"
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if tc.val == "" {
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os.Unsetenv(testVar)
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} else {
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os.Setenv(testVar, tc.val)
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}
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if got := uint64FromEnv(testVar, tc.def, tc.min, tc.max); got != tc.want {
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t.Errorf("uint64FromEnv(%q(=%q), %v, %v, %v) = %v; want %v", testVar, tc.val, tc.def, tc.min, tc.max, got, tc.want)
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}
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})
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}
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}
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func (s) TestBoolFromEnv(t *testing.T) {
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var testCases = []struct {
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val string
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def bool
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want bool
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}{
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{val: "", def: true, want: true},
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{val: "", def: false, want: false},
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{val: "true", def: true, want: true},
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{val: "true", def: false, want: true},
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{val: "false", def: true, want: false},
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{val: "false", def: false, want: false},
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{val: "asdf", def: true, want: true},
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{val: "asdf", def: false, want: false},
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}
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for _, tc := range testCases {
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t.Run("", func(t *testing.T) {
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const testVar = "testvar"
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if tc.val == "" {
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os.Unsetenv(testVar)
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} else {
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os.Setenv(testVar, tc.val)
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}
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if got := boolFromEnv(testVar, tc.def); got != tc.want {
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t.Errorf("boolFromEnv(%q(=%q), %v) = %v; want %v", testVar, tc.val, tc.def, got, tc.want)
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}
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})
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}
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}
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