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package toml
import (
"bytes"
"errors"
"fmt"
"reflect"
"strings"
"testing"
"time"
)
type failingWriter struct {
failAt int
written int
buffer bytes.Buffer
}
func (f failingWriter) Write(p []byte) (n int, err error) {
count := len(p)
toWrite := f.failAt - count + f.written
if toWrite < 0 {
toWrite = 0
}
if toWrite > count {
f.written += count
f.buffer.WriteString(string(p))
return count, nil
}
f.buffer.WriteString(string(p[:toWrite]))
f.written = f.failAt
return f.written, fmt.Errorf("failingWriter failed after writting %d bytes", f.written)
}
func assertErrorString(t *testing.T, expected string, err error) {
expectedErr := errors.New(expected)
if err.Error() != expectedErr.Error() {
t.Errorf("expecting error %s, but got %s instead", expected, err)
}
}
func TestTreeWriteToTomlString(t *testing.T) {
toml, err := Load(`name = { first = "Tom", last = "Preston-Werner" }
points = { x = 1, y = 2 }`)
if err != nil {
t.Fatal("Unexpected error:", err)
}
tomlString, _ := toml.ToTomlString()
reparsedTree, err := Load(tomlString)
assertTree(t, reparsedTree, err, map[string]interface{}{
"name": map[string]interface{}{
"first": "Tom",
"last": "Preston-Werner",
},
"points": map[string]interface{}{
"x": int64(1),
"y": int64(2),
},
})
}
func TestTreeWriteToTomlStringSimple(t *testing.T) {
tree, err := Load("[foo]\n\n[[foo.bar]]\na = 42\n\n[[foo.bar]]\na = 69\n")
if err != nil {
t.Errorf("Test failed to parse: %v", err)
return
}
result, err := tree.ToTomlString()
if err != nil {
t.Errorf("Unexpected error: %s", err)
}
expected := "\n[foo]\n\n [[foo.bar]]\n a = 42\n\n [[foo.bar]]\n a = 69\n"
if result != expected {
t.Errorf("Expected got '%s', expected '%s'", result, expected)
}
}
func TestTreeWriteToTomlStringKeysOrders(t *testing.T) {
for i := 0; i < 100; i++ {
tree, _ := Load(`
foobar = true
bar = "baz"
foo = 1
[qux]
foo = 1
bar = "baz2"`)
stringRepr, _ := tree.ToTomlString()
t.Log("Intermediate string representation:")
t.Log(stringRepr)
r := strings.NewReader(stringRepr)
toml, err := LoadReader(r)
if err != nil {
t.Fatal("Unexpected error:", err)
}
assertTree(t, toml, err, map[string]interface{}{
"foobar": true,
"bar": "baz",
"foo": 1,
"qux": map[string]interface{}{
"foo": 1,
"bar": "baz2",
},
})
}
}
func testMaps(t *testing.T, actual, expected map[string]interface{}) {
if !reflect.DeepEqual(actual, expected) {
t.Fatal("trees aren't equal.\n", "Expected:\n", expected, "\nActual:\n", actual)
}
}
func TestTreeWriteToMapSimple(t *testing.T) {
tree, _ := Load("a = 42\nb = 17")
expected := map[string]interface{}{
"a": int64(42),
"b": int64(17),
}
testMaps(t, tree.ToMap(), expected)
}
func TestTreeWriteToInvalidTreeSimpleValue(t *testing.T) {
tree := Tree{values: map[string]interface{}{"foo": int8(1)}}
_, err := tree.ToTomlString()
assertErrorString(t, "invalid value type at foo: int8", err)
}
func TestTreeWriteToInvalidTreeTomlValue(t *testing.T) {
tree := Tree{values: map[string]interface{}{"foo": &tomlValue{int8(1), Position{}}}}
_, err := tree.ToTomlString()
assertErrorString(t, "unsupported value type int8: 1", err)
}
func TestTreeWriteToInvalidTreeTomlValueArray(t *testing.T) {
tree := Tree{values: map[string]interface{}{"foo": &tomlValue{[]interface{}{int8(1)}, Position{}}}}
_, err := tree.ToTomlString()
assertErrorString(t, "unsupported value type int8: 1", err)
}
func TestTreeWriteToFailingWriterInSimpleValue(t *testing.T) {
toml, _ := Load(`a = 2`)
writer := failingWriter{failAt: 0, written: 0}
_, err := toml.WriteTo(writer)
assertErrorString(t, "failingWriter failed after writting 0 bytes", err)
}
func TestTreeWriteToFailingWriterInTable(t *testing.T) {
toml, _ := Load(`
[b]
a = 2`)
writer := failingWriter{failAt: 2, written: 0}
_, err := toml.WriteTo(writer)
assertErrorString(t, "failingWriter failed after writting 2 bytes", err)
writer = failingWriter{failAt: 13, written: 0}
_, err = toml.WriteTo(writer)
assertErrorString(t, "failingWriter failed after writting 13 bytes", err)
}
func TestTreeWriteToFailingWriterInArray(t *testing.T) {
toml, _ := Load(`
[[b]]
a = 2`)
writer := failingWriter{failAt: 2, written: 0}
_, err := toml.WriteTo(writer)
assertErrorString(t, "failingWriter failed after writting 2 bytes", err)
writer = failingWriter{failAt: 15, written: 0}
_, err = toml.WriteTo(writer)
assertErrorString(t, "failingWriter failed after writting 15 bytes", err)
}
func TestTreeWriteToMapExampleFile(t *testing.T) {
tree, _ := LoadFile("example.toml")
expected := map[string]interface{}{
"title": "TOML Example",
"owner": map[string]interface{}{
"name": "Tom Preston-Werner",
"organization": "GitHub",
"bio": "GitHub Cofounder & CEO\nLikes tater tots and beer.",
"dob": time.Date(1979, time.May, 27, 7, 32, 0, 0, time.UTC),
},
"database": map[string]interface{}{
"server": "192.168.1.1",
"ports": []interface{}{int64(8001), int64(8001), int64(8002)},
"connection_max": int64(5000),
"enabled": true,
},
"servers": map[string]interface{}{
"alpha": map[string]interface{}{
"ip": "10.0.0.1",
"dc": "eqdc10",
},
"beta": map[string]interface{}{
"ip": "10.0.0.2",
"dc": "eqdc10",
},
},
"clients": map[string]interface{}{
"data": []interface{}{
[]interface{}{"gamma", "delta"},
[]interface{}{int64(1), int64(2)},
},
},
}
testMaps(t, tree.ToMap(), expected)
}
func TestTreeWriteToMapWithTablesInMultipleChunks(t *testing.T) {
tree, _ := Load(`
[[menu.main]]
a = "menu 1"
b = "menu 2"
[[menu.main]]
c = "menu 3"
d = "menu 4"`)
expected := map[string]interface{}{
"menu": map[string]interface{}{
"main": []interface{}{
map[string]interface{}{"a": "menu 1", "b": "menu 2"},
map[string]interface{}{"c": "menu 3", "d": "menu 4"},
},
},
}
treeMap := tree.ToMap()
testMaps(t, treeMap, expected)
}
func TestTreeWriteToMapWithArrayOfInlineTables(t *testing.T) {
tree, _ := Load(`
[params]
language_tabs = [
{ key = "shell", name = "Shell" },
{ key = "ruby", name = "Ruby" },
{ key = "python", name = "Python" }
]`)
expected := map[string]interface{}{
"params": map[string]interface{}{
"language_tabs": []interface{}{
map[string]interface{}{
"key": "shell",
"name": "Shell",
},
map[string]interface{}{
"key": "ruby",
"name": "Ruby",
},
map[string]interface{}{
"key": "python",
"name": "Python",
},
},
},
}
treeMap := tree.ToMap()
testMaps(t, treeMap, expected)
}
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