Files
go-toml/query/parser_test.go
T
x-hgg-x a60e466129 Fix index and slice expressions for query (#405)
* Fix index and slice expressions for query

Support negative step for slice expressions
2020-05-14 14:21:51 +08:00

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package query
import (
"fmt"
"io/ioutil"
"sort"
"strings"
"testing"
"time"
"github.com/pelletier/go-toml"
)
type queryTestNode struct {
value interface{}
position toml.Position
}
func valueString(root interface{}) string {
result := "" //fmt.Sprintf("%T:", root)
switch node := root.(type) {
case *Result:
items := []string{}
for i, v := range node.Values() {
items = append(items, fmt.Sprintf("%s:%s",
node.Positions()[i].String(), valueString(v)))
}
sort.Strings(items)
result = "[" + strings.Join(items, ", ") + "]"
case queryTestNode:
result = fmt.Sprintf("%s:%s",
node.position.String(), valueString(node.value))
case []interface{}:
items := []string{}
for _, v := range node {
items = append(items, valueString(v))
}
sort.Strings(items)
result = "[" + strings.Join(items, ", ") + "]"
case *toml.Tree:
// workaround for unreliable map key ordering
items := []string{}
for _, k := range node.Keys() {
v := node.GetPath([]string{k})
items = append(items, k+":"+valueString(v))
}
sort.Strings(items)
result = "{" + strings.Join(items, ", ") + "}"
case map[string]interface{}:
// workaround for unreliable map key ordering
items := []string{}
for k, v := range node {
items = append(items, k+":"+valueString(v))
}
sort.Strings(items)
result = "{" + strings.Join(items, ", ") + "}"
case int64:
result += fmt.Sprintf("%d", node)
case string:
result += "'" + node + "'"
case float64:
result += fmt.Sprintf("%f", node)
case bool:
result += fmt.Sprintf("%t", node)
case time.Time:
result += fmt.Sprintf("'%v'", node)
}
return result
}
func assertValue(t *testing.T, result, ref interface{}) {
pathStr := valueString(result)
refStr := valueString(ref)
if pathStr != refStr {
t.Errorf("values do not match")
t.Log("test:", pathStr)
t.Log("ref: ", refStr)
}
}
func assertParseError(t *testing.T, query string, errString string) {
_, err := Compile(query)
if err == nil {
t.Error("error should be non-nil")
return
}
if err.Error() != errString {
t.Errorf("error does not match")
t.Log("test:", err.Error())
t.Log("ref: ", errString)
}
}
func assertQueryPositions(t *testing.T, tomlDoc string, query string, ref []interface{}) {
tree, err := toml.Load(tomlDoc)
if err != nil {
t.Errorf("Non-nil toml parse error: %v", err)
return
}
q, err := Compile(query)
if err != nil {
t.Error(err)
return
}
results := q.Execute(tree)
assertValue(t, results, ref)
}
func TestQueryRoot(t *testing.T) {
assertQueryPositions(t,
"a = 42",
"$",
[]interface{}{
queryTestNode{
map[string]interface{}{
"a": int64(42),
}, toml.Position{1, 1},
},
})
}
func TestQueryKey(t *testing.T) {
assertQueryPositions(t,
"[foo]\na = 42",
"$.foo.a",
[]interface{}{
queryTestNode{
int64(42), toml.Position{2, 1},
},
})
}
func TestQueryKeyString(t *testing.T) {
assertQueryPositions(t,
"[foo]\na = 42",
"$.foo['a']",
[]interface{}{
queryTestNode{
int64(42), toml.Position{2, 1},
},
})
}
func TestQueryKeyUnicodeString(t *testing.T) {
assertQueryPositions(t,
"['f𝟘.o']\na = 42",
"$['f𝟘.o']['a']",
[]interface{}{
queryTestNode{
int64(42), toml.Position{2, 1},
},
})
}
func TestQueryIndexError1(t *testing.T) {
assertParseError(t, "$.foo.a[5", "(1, 10): expected ',' or ']', not ''")
}
func TestQueryIndexError2(t *testing.T) {
assertParseError(t, "$.foo.a[]", "(1, 9): expected union sub expression, not ']', 0")
}
func TestQueryIndex(t *testing.T) {
assertQueryPositions(t,
"[foo]\na = [0,1,2,3,4,5,6,7,8,9]",
"$.foo.a[5]",
[]interface{}{
queryTestNode{int64(5), toml.Position{2, 1}},
})
}
func TestQueryIndexNegative(t *testing.T) {
assertQueryPositions(t,
"[foo]\na = [0,1,2,3,4,5,6,7,8,9]",
"$.foo.a[-2]",
[]interface{}{
queryTestNode{int64(8), toml.Position{2, 1}},
})
}
func TestQueryIndexWrong(t *testing.T) {
assertQueryPositions(t,
"[foo]\na = [0,1,2,3,4,5,6,7,8,9]",
"$.foo.a[99]",
[]interface{}{})
}
func TestQueryIndexEmpty(t *testing.T) {
assertQueryPositions(t,
"[foo]\na = []",
"$.foo.a[5]",
[]interface{}{})
}
func TestQueryIndexTree(t *testing.T) {
assertQueryPositions(t,
"[[foo]]\na = [0,1,2,3,4,5,6,7,8,9]\n[[foo]]\nb = 3",
"$.foo[1].b",
[]interface{}{
queryTestNode{int64(3), toml.Position{4, 1}},
})
}
func TestQuerySliceError1(t *testing.T) {
assertParseError(t, "$.foo.a[3:?]", "(1, 11): expected ']' or ':'")
}
func TestQuerySliceError2(t *testing.T) {
assertParseError(t, "$.foo.a[:::]", "(1, 11): expected ']'")
}
func TestQuerySliceError3(t *testing.T) {
assertParseError(t, "$.foo.a[::0]", "(1, 11): step cannot be zero")
}
func TestQuerySliceRange(t *testing.T) {
assertQueryPositions(t,
"[foo]\na = [0,1,2,3,4,5,6,7,8,9]",
"$.foo.a[:5]",
[]interface{}{
queryTestNode{int64(0), toml.Position{2, 1}},
queryTestNode{int64(1), toml.Position{2, 1}},
queryTestNode{int64(2), toml.Position{2, 1}},
queryTestNode{int64(3), toml.Position{2, 1}},
queryTestNode{int64(4), toml.Position{2, 1}},
})
}
func TestQuerySliceStep(t *testing.T) {
assertQueryPositions(t,
"[foo]\na = [0,1,2,3,4,5,6,7,8,9]",
"$.foo.a[0:5:2]",
[]interface{}{
queryTestNode{int64(0), toml.Position{2, 1}},
queryTestNode{int64(2), toml.Position{2, 1}},
queryTestNode{int64(4), toml.Position{2, 1}},
})
}
func TestQuerySliceStartNegative(t *testing.T) {
assertQueryPositions(t,
"[foo]\na = [0,1,2,3,4,5,6,7,8,9]",
"$.foo.a[-3:]",
[]interface{}{
queryTestNode{int64(7), toml.Position{2, 1}},
queryTestNode{int64(8), toml.Position{2, 1}},
queryTestNode{int64(9), toml.Position{2, 1}},
})
}
func TestQuerySliceEndNegative(t *testing.T) {
assertQueryPositions(t,
"[foo]\na = [0,1,2,3,4,5,6,7,8,9]",
"$.foo.a[:-6]",
[]interface{}{
queryTestNode{int64(0), toml.Position{2, 1}},
queryTestNode{int64(1), toml.Position{2, 1}},
queryTestNode{int64(2), toml.Position{2, 1}},
queryTestNode{int64(3), toml.Position{2, 1}},
})
}
func TestQuerySliceStepNegative(t *testing.T) {
assertQueryPositions(t,
"[foo]\na = [0,1,2,3,4,5,6,7,8,9]",
"$.foo.a[::-2]",
[]interface{}{
queryTestNode{int64(9), toml.Position{2, 1}},
queryTestNode{int64(7), toml.Position{2, 1}},
queryTestNode{int64(5), toml.Position{2, 1}},
queryTestNode{int64(3), toml.Position{2, 1}},
queryTestNode{int64(1), toml.Position{2, 1}},
})
}
func TestQuerySliceStartOverRange(t *testing.T) {
assertQueryPositions(t,
"[foo]\na = [0,1,2,3,4,5,6,7,8,9]",
"$.foo.a[-99:3]",
[]interface{}{
queryTestNode{int64(0), toml.Position{2, 1}},
queryTestNode{int64(1), toml.Position{2, 1}},
queryTestNode{int64(2), toml.Position{2, 1}},
})
}
func TestQuerySliceStartOverRangeNegative(t *testing.T) {
assertQueryPositions(t,
"[foo]\na = [0,1,2,3,4,5,6,7,8,9]",
"$.foo.a[99:7:-1]",
[]interface{}{
queryTestNode{int64(9), toml.Position{2, 1}},
queryTestNode{int64(8), toml.Position{2, 1}},
})
}
func TestQuerySliceEndOverRange(t *testing.T) {
assertQueryPositions(t,
"[foo]\na = [0,1,2,3,4,5,6,7,8,9]",
"$.foo.a[7:99]",
[]interface{}{
queryTestNode{int64(7), toml.Position{2, 1}},
queryTestNode{int64(8), toml.Position{2, 1}},
queryTestNode{int64(9), toml.Position{2, 1}},
})
}
func TestQuerySliceEndOverRangeNegative(t *testing.T) {
assertQueryPositions(t,
"[foo]\na = [0,1,2,3,4,5,6,7,8,9]",
"$.foo.a[2:-99:-1]",
[]interface{}{
queryTestNode{int64(2), toml.Position{2, 1}},
queryTestNode{int64(1), toml.Position{2, 1}},
queryTestNode{int64(0), toml.Position{2, 1}},
})
}
func TestQuerySliceWrongRange(t *testing.T) {
assertQueryPositions(t,
"[foo]\na = [0,1,2,3,4,5,6,7,8,9]",
"$.foo.a[5:3]",
[]interface{}{})
}
func TestQuerySliceWrongRangeNegative(t *testing.T) {
assertQueryPositions(t,
"[foo]\na = [0,1,2,3,4,5,6,7,8,9]",
"$.foo.a[3:5:-1]",
[]interface{}{})
}
func TestQuerySliceEmpty(t *testing.T) {
assertQueryPositions(t,
"[foo]\na = []",
"$.foo.a[5:]",
[]interface{}{})
}
func TestQuerySliceTree(t *testing.T) {
assertQueryPositions(t,
"[[foo]]\na='nok'\n[[foo]]\na = [0,1,2,3,4,5,6,7,8,9]\n[[foo]]\na='ok'\nb = 3",
"$.foo[1:].a",
[]interface{}{
queryTestNode{
[]interface{}{
int64(0), int64(1), int64(2), int64(3), int64(4),
int64(5), int64(6), int64(7), int64(8), int64(9)},
toml.Position{4, 1}},
queryTestNode{"ok", toml.Position{6, 1}},
})
}
func TestQueryAny(t *testing.T) {
assertQueryPositions(t,
"[foo.bar]\na=1\nb=2\n[foo.baz]\na=3\nb=4",
"$.foo.*",
[]interface{}{
queryTestNode{
map[string]interface{}{
"a": int64(1),
"b": int64(2),
}, toml.Position{1, 1},
},
queryTestNode{
map[string]interface{}{
"a": int64(3),
"b": int64(4),
}, toml.Position{4, 1},
},
})
}
func TestQueryUnionSimple(t *testing.T) {
assertQueryPositions(t,
"[foo.bar]\na=1\nb=2\n[baz.foo]\na=3\nb=4\n[gorf.foo]\na=5\nb=6",
"$.*[bar,foo]",
[]interface{}{
queryTestNode{
map[string]interface{}{
"a": int64(1),
"b": int64(2),
}, toml.Position{1, 1},
},
queryTestNode{
map[string]interface{}{
"a": int64(3),
"b": int64(4),
}, toml.Position{4, 1},
},
queryTestNode{
map[string]interface{}{
"a": int64(5),
"b": int64(6),
}, toml.Position{7, 1},
},
})
}
func TestQueryRecursionAll(t *testing.T) {
assertQueryPositions(t,
"[foo.bar]\na=1\nb=2\n[baz.foo]\na=3\nb=4\n[gorf.foo]\na=5\nb=6",
"$..*",
[]interface{}{
queryTestNode{
map[string]interface{}{
"foo": map[string]interface{}{
"bar": map[string]interface{}{
"a": int64(1),
"b": int64(2),
},
},
"baz": map[string]interface{}{
"foo": map[string]interface{}{
"a": int64(3),
"b": int64(4),
},
},
"gorf": map[string]interface{}{
"foo": map[string]interface{}{
"a": int64(5),
"b": int64(6),
},
},
}, toml.Position{1, 1},
},
queryTestNode{
map[string]interface{}{
"bar": map[string]interface{}{
"a": int64(1),
"b": int64(2),
},
}, toml.Position{1, 1},
},
queryTestNode{
map[string]interface{}{
"a": int64(1),
"b": int64(2),
}, toml.Position{1, 1},
},
queryTestNode{int64(1), toml.Position{2, 1}},
queryTestNode{int64(2), toml.Position{3, 1}},
queryTestNode{
map[string]interface{}{
"foo": map[string]interface{}{
"a": int64(3),
"b": int64(4),
},
}, toml.Position{4, 1},
},
queryTestNode{
map[string]interface{}{
"a": int64(3),
"b": int64(4),
}, toml.Position{4, 1},
},
queryTestNode{int64(3), toml.Position{5, 1}},
queryTestNode{int64(4), toml.Position{6, 1}},
queryTestNode{
map[string]interface{}{
"foo": map[string]interface{}{
"a": int64(5),
"b": int64(6),
},
}, toml.Position{7, 1},
},
queryTestNode{
map[string]interface{}{
"a": int64(5),
"b": int64(6),
}, toml.Position{7, 1},
},
queryTestNode{int64(5), toml.Position{8, 1}},
queryTestNode{int64(6), toml.Position{9, 1}},
})
}
func TestQueryRecursionUnionSimple(t *testing.T) {
assertQueryPositions(t,
"[foo.bar]\na=1\nb=2\n[baz.foo]\na=3\nb=4\n[gorf.foo]\na=5\nb=6",
"$..['foo','bar']",
[]interface{}{
queryTestNode{
map[string]interface{}{
"bar": map[string]interface{}{
"a": int64(1),
"b": int64(2),
},
}, toml.Position{1, 1},
},
queryTestNode{
map[string]interface{}{
"a": int64(3),
"b": int64(4),
}, toml.Position{4, 1},
},
queryTestNode{
map[string]interface{}{
"a": int64(1),
"b": int64(2),
}, toml.Position{1, 1},
},
queryTestNode{
map[string]interface{}{
"a": int64(5),
"b": int64(6),
}, toml.Position{7, 1},
},
})
}
func TestQueryFilterFn(t *testing.T) {
buff, err := ioutil.ReadFile("../example.toml")
if err != nil {
t.Error(err)
return
}
assertQueryPositions(t, string(buff),
"$..[?(int)]",
[]interface{}{
queryTestNode{int64(8001), toml.Position{13, 1}},
queryTestNode{int64(8001), toml.Position{13, 1}},
queryTestNode{int64(8002), toml.Position{13, 1}},
queryTestNode{int64(5000), toml.Position{14, 1}},
})
assertQueryPositions(t, string(buff),
"$..[?(string)]",
[]interface{}{
queryTestNode{"TOML Example", toml.Position{3, 1}},
queryTestNode{"Tom Preston-Werner", toml.Position{6, 1}},
queryTestNode{"GitHub", toml.Position{7, 1}},
queryTestNode{"GitHub Cofounder & CEO\nLikes tater tots and beer.", toml.Position{8, 1}},
queryTestNode{"192.168.1.1", toml.Position{12, 1}},
queryTestNode{"10.0.0.1", toml.Position{21, 3}},
queryTestNode{"eqdc10", toml.Position{22, 3}},
queryTestNode{"10.0.0.2", toml.Position{25, 3}},
queryTestNode{"eqdc10", toml.Position{26, 3}},
})
assertQueryPositions(t, string(buff),
"$..[?(float)]",
[]interface{}{
queryTestNode{4e-08, toml.Position{30, 1}},
})
tv, _ := time.Parse(time.RFC3339, "1979-05-27T07:32:00Z")
assertQueryPositions(t, string(buff),
"$..[?(tree)]",
[]interface{}{
queryTestNode{
map[string]interface{}{
"name": "Tom Preston-Werner",
"organization": "GitHub",
"bio": "GitHub Cofounder & CEO\nLikes tater tots and beer.",
"dob": tv,
}, toml.Position{5, 1},
},
queryTestNode{
map[string]interface{}{
"server": "192.168.1.1",
"ports": []interface{}{int64(8001), int64(8001), int64(8002)},
"connection_max": int64(5000),
"enabled": true,
}, toml.Position{11, 1},
},
queryTestNode{
map[string]interface{}{
"alpha": map[string]interface{}{
"ip": "10.0.0.1",
"dc": "eqdc10",
},
"beta": map[string]interface{}{
"ip": "10.0.0.2",
"dc": "eqdc10",
},
}, toml.Position{17, 1},
},
queryTestNode{
map[string]interface{}{
"ip": "10.0.0.1",
"dc": "eqdc10",
}, toml.Position{20, 3},
},
queryTestNode{
map[string]interface{}{
"ip": "10.0.0.2",
"dc": "eqdc10",
}, toml.Position{24, 3},
},
queryTestNode{
map[string]interface{}{
"data": []interface{}{
[]interface{}{"gamma", "delta"},
[]interface{}{int64(1), int64(2)},
},
"score": 4e-08,
}, toml.Position{28, 1},
},
})
assertQueryPositions(t, string(buff),
"$..[?(time)]",
[]interface{}{
queryTestNode{tv, toml.Position{9, 1}},
})
assertQueryPositions(t, string(buff),
"$..[?(bool)]",
[]interface{}{
queryTestNode{true, toml.Position{15, 1}},
})
}