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https://github.com/k3s-io/kubernetes.git
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104 lines
2.8 KiB
Go
104 lines
2.8 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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package kubectl
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import (
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"os"
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"strings"
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"testing"
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)
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// Test the cases of proccessEnvFileLine that can be run without touching the
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// environment.
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func Test_processEnvFileLine(t *testing.T) {
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testCases := []struct {
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name string
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line []byte
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currentLine int
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expectedKey string
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expectedValue string
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expectedErr string
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}{
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{"the utf8bom is trimmed on the first line",
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append(utf8bom, 'a', '=', 'c'), 0, "a", "c", ""},
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{"the utf8bom is NOT trimmed on the second line",
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append(utf8bom, 'a', '=', 'c'), 1, "", "", "not a valid key name"},
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{"no key is returned on a comment line",
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[]byte{' ', '#', 'c'}, 0, "", "", ""},
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{"no key is returned on a blank line",
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[]byte{' ', ' ', '\t'}, 0, "", "", ""},
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{"key is returned even with no value",
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[]byte{' ', 'x', '='}, 0, "x", "", ""},
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}
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for _, c := range testCases {
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key, value, err := proccessEnvFileLine(c.line, `filename`, c.currentLine)
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t.Logf("Testing that %s.", c.name)
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if c.expectedKey != key {
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t.Errorf("\texpected key %q, received %q", c.expectedKey, key)
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}
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if c.expectedValue != value {
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t.Errorf("\texpected value %q, received %q", c.expectedValue, value)
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}
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if len(c.expectedErr) == 0 {
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if err != nil {
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t.Errorf("\tunexpected err %v", err)
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}
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} else {
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if !strings.Contains(err.Error(), c.expectedErr) {
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t.Errorf("\terr %v doesn't match expected %q", err, c.expectedErr)
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}
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}
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}
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}
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// proccessEnvFileLine needs to fetch the value from the environment if no
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// equals sign is provided.
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// For example:
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//
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// my_key1=alpha
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// my_key2=beta
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// my_key3
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//
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// In this file, my_key3 must be fetched from the environment.
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// Test this capability.
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func Test_processEnvFileLine_readEnvironment(t *testing.T) {
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const realKey = "k8s_test_env_file_key"
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const realValue = `my_value`
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// Just in case, these two lines ensure the environment is restored to
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// its original state.
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original := os.Getenv(realKey)
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defer func() { os.Setenv(realKey, original) }()
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os.Setenv(realKey, `my_value`)
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key, value, err := proccessEnvFileLine([]byte(realKey), `filename`, 3)
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if err != nil {
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t.Fatal(err)
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}
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if key != realKey {
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t.Errorf(`expected key %q, received %q`, realKey, key)
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}
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if value != realValue {
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t.Errorf(`expected value %q, received %q`, realValue, value)
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}
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}
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