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moby--moby/pkg/stringutils/strslice_test.go

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package stringutils
import (
"encoding/json"
"reflect"
"testing"
)
func TestStrSliceMarshalJSON(t *testing.T) {
strss := map[*StrSlice]string{
nil: "",
&StrSlice{}: "null",
&StrSlice{[]string{"/bin/sh", "-c", "echo"}}: `["/bin/sh","-c","echo"]`,
}
for strs, expected := range strss {
data, err := strs.MarshalJSON()
if err != nil {
t.Fatal(err)
}
if string(data) != expected {
t.Fatalf("Expected %v, got %v", expected, string(data))
}
}
}
func TestStrSliceUnmarshalJSON(t *testing.T) {
parts := map[string][]string{
"": {"default", "values"},
"[]": {},
`["/bin/sh","-c","echo"]`: {"/bin/sh", "-c", "echo"},
}
for json, expectedParts := range parts {
strs := &StrSlice{
[]string{"default", "values"},
}
if err := strs.UnmarshalJSON([]byte(json)); err != nil {
t.Fatal(err)
}
actualParts := strs.Slice()
if len(actualParts) != len(expectedParts) {
t.Fatalf("Expected %v parts, got %v (%v)", len(expectedParts), len(actualParts), expectedParts)
}
for index, part := range actualParts {
if part != expectedParts[index] {
t.Fatalf("Expected %v, got %v", expectedParts, actualParts)
break
}
}
}
}
func TestStrSliceUnmarshalString(t *testing.T) {
var e *StrSlice
echo, err := json.Marshal("echo")
if err != nil {
t.Fatal(err)
}
if err := json.Unmarshal(echo, &e); err != nil {
t.Fatal(err)
}
slice := e.Slice()
if len(slice) != 1 {
t.Fatalf("expected 1 element after unmarshal: %q", slice)
}
if slice[0] != "echo" {
t.Fatalf("expected `echo`, got: %q", slice[0])
}
}
func TestStrSliceUnmarshalSlice(t *testing.T) {
var e *StrSlice
echo, err := json.Marshal([]string{"echo"})
if err != nil {
t.Fatal(err)
}
if err := json.Unmarshal(echo, &e); err != nil {
t.Fatal(err)
}
slice := e.Slice()
if len(slice) != 1 {
t.Fatalf("expected 1 element after unmarshal: %q", slice)
}
if slice[0] != "echo" {
t.Fatalf("expected `echo`, got: %q", slice[0])
}
}
func TestStrSliceToString(t *testing.T) {
slices := map[*StrSlice]string{
NewStrSlice(""): "",
NewStrSlice("one"): "one",
NewStrSlice("one", "two"): "one two",
}
for s, expected := range slices {
toString := s.ToString()
if toString != expected {
t.Fatalf("Expected %v, got %v", expected, toString)
}
}
}
func TestStrSliceLen(t *testing.T) {
var emptyStrSlice *StrSlice
slices := map[*StrSlice]int{
NewStrSlice(""): 1,
NewStrSlice("one"): 1,
NewStrSlice("one", "two"): 2,
emptyStrSlice: 0,
}
for s, expected := range slices {
if s.Len() != expected {
t.Fatalf("Expected %d, got %d", s.Len(), expected)
}
}
}
func TestStrSliceSlice(t *testing.T) {
var emptyStrSlice *StrSlice
slices := map[*StrSlice][]string{
NewStrSlice("one"): {"one"},
NewStrSlice("one", "two"): {"one", "two"},
emptyStrSlice: nil,
}
for s, expected := range slices {
if !reflect.DeepEqual(s.Slice(), expected) {
t.Fatalf("Expected %v, got %v", s.Slice(), expected)
}
}
}