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moby--moby/builder/shell_parser_test.go
Doug Davis eeeae2c235 Add some builder getEnv tests
In particular I want to make sure that calling getEnv() when the same
var name appears more than once in the env list that we only pick up
the first one.  PR #15182 counts on this

Signed-off-by: Doug Davis <dug@us.ibm.com>
2015-08-22 13:12:43 -07:00

93 lines
1.8 KiB
Go

package builder
import (
"bufio"
"os"
"strings"
"testing"
)
func TestShellParser(t *testing.T) {
file, err := os.Open("words")
if err != nil {
t.Fatalf("Can't open 'words': %s", err)
}
defer file.Close()
scanner := bufio.NewScanner(file)
envs := []string{"PWD=/home", "SHELL=bash"}
for scanner.Scan() {
line := scanner.Text()
// Trim comments and blank lines
i := strings.Index(line, "#")
if i >= 0 {
line = line[:i]
}
line = strings.TrimSpace(line)
if line == "" {
continue
}
words := strings.Split(line, "|")
if len(words) != 2 {
t.Fatalf("Error in 'words' - should be 2 words:%q", words)
}
words[0] = strings.TrimSpace(words[0])
words[1] = strings.TrimSpace(words[1])
newWord, err := ProcessWord(words[0], envs)
if err != nil {
newWord = "error"
}
if newWord != words[1] {
t.Fatalf("Error. Src: %s Calc: %s Expected: %s", words[0], newWord, words[1])
}
}
}
func TestGetEnv(t *testing.T) {
sw := &shellWord{
word: "",
envs: nil,
pos: 0,
}
sw.envs = []string{}
if sw.getEnv("foo") != "" {
t.Fatalf("2 - 'foo' should map to ''")
}
sw.envs = []string{"foo"}
if sw.getEnv("foo") != "" {
t.Fatalf("3 - 'foo' should map to ''")
}
sw.envs = []string{"foo="}
if sw.getEnv("foo") != "" {
t.Fatalf("4 - 'foo' should map to ''")
}
sw.envs = []string{"foo=bar"}
if sw.getEnv("foo") != "bar" {
t.Fatalf("5 - 'foo' should map to 'bar'")
}
sw.envs = []string{"foo=bar", "car=hat"}
if sw.getEnv("foo") != "bar" {
t.Fatalf("6 - 'foo' should map to 'bar'")
}
if sw.getEnv("car") != "hat" {
t.Fatalf("7 - 'car' should map to 'hat'")
}
// Make sure we grab the first 'car' in the list
sw.envs = []string{"foo=bar", "car=hat", "car=bike"}
if sw.getEnv("car") != "hat" {
t.Fatalf("8 - 'car' should map to 'hat'")
}
}