diff options
Diffstat (limited to 'vendor/github.com/garyburd/redigo/redis/scan_test.go')
| -rw-r--r-- | vendor/github.com/garyburd/redigo/redis/scan_test.go | 440 |
1 files changed, 440 insertions, 0 deletions
diff --git a/vendor/github.com/garyburd/redigo/redis/scan_test.go b/vendor/github.com/garyburd/redigo/redis/scan_test.go new file mode 100644 index 000000000..d364dff42 --- /dev/null +++ b/vendor/github.com/garyburd/redigo/redis/scan_test.go @@ -0,0 +1,440 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis_test + +import ( + "fmt" + "math" + "reflect" + "testing" + + "github.com/garyburd/redigo/redis" +) + +var scanConversionTests = []struct { + src interface{} + dest interface{} +}{ + {[]byte("-inf"), math.Inf(-1)}, + {[]byte("+inf"), math.Inf(1)}, + {[]byte("0"), float64(0)}, + {[]byte("3.14159"), float64(3.14159)}, + {[]byte("3.14"), float32(3.14)}, + {[]byte("-100"), int(-100)}, + {[]byte("101"), int(101)}, + {int64(102), int(102)}, + {[]byte("103"), uint(103)}, + {int64(104), uint(104)}, + {[]byte("105"), int8(105)}, + {int64(106), int8(106)}, + {[]byte("107"), uint8(107)}, + {int64(108), uint8(108)}, + {[]byte("0"), false}, + {int64(0), false}, + {[]byte("f"), false}, + {[]byte("1"), true}, + {int64(1), true}, + {[]byte("t"), true}, + {"hello", "hello"}, + {[]byte("hello"), "hello"}, + {[]byte("world"), []byte("world")}, + {[]interface{}{[]byte("foo")}, []interface{}{[]byte("foo")}}, + {[]interface{}{[]byte("foo")}, []string{"foo"}}, + {[]interface{}{[]byte("hello"), []byte("world")}, []string{"hello", "world"}}, + {[]interface{}{[]byte("bar")}, [][]byte{[]byte("bar")}}, + {[]interface{}{[]byte("1")}, []int{1}}, + {[]interface{}{[]byte("1"), []byte("2")}, []int{1, 2}}, + {[]interface{}{[]byte("1"), []byte("2")}, []float64{1, 2}}, + {[]interface{}{[]byte("1")}, []byte{1}}, + {[]interface{}{[]byte("1")}, []bool{true}}, +} + +func TestScanConversion(t *testing.T) { + for _, tt := range scanConversionTests { + values := []interface{}{tt.src} + dest := reflect.New(reflect.TypeOf(tt.dest)) + values, err := redis.Scan(values, dest.Interface()) + if err != nil { + t.Errorf("Scan(%v) returned error %v", tt, err) + continue + } + if !reflect.DeepEqual(tt.dest, dest.Elem().Interface()) { + t.Errorf("Scan(%v) returned %v, want %v", tt, dest.Elem().Interface(), tt.dest) + } + } +} + +var scanConversionErrorTests = []struct { + src interface{} + dest interface{} +}{ + {[]byte("1234"), byte(0)}, + {int64(1234), byte(0)}, + {[]byte("-1"), byte(0)}, + {int64(-1), byte(0)}, + {[]byte("junk"), false}, + {redis.Error("blah"), false}, +} + +func TestScanConversionError(t *testing.T) { + for _, tt := range scanConversionErrorTests { + values := []interface{}{tt.src} + dest := reflect.New(reflect.TypeOf(tt.dest)) + values, err := redis.Scan(values, dest.Interface()) + if err == nil { + t.Errorf("Scan(%v) did not return error", tt) + } + } +} + +func ExampleScan() { + c, err := dial() + if err != nil { + fmt.Println(err) + return + } + defer c.Close() + + c.Send("HMSET", "album:1", "title", "Red", "rating", 5) + c.Send("HMSET", "album:2", "title", "Earthbound", "rating", 1) + c.Send("HMSET", "album:3", "title", "Beat") + c.Send("LPUSH", "albums", "1") + c.Send("LPUSH", "albums", "2") + c.Send("LPUSH", "albums", "3") + values, err := redis.Values(c.Do("SORT", "albums", + "BY", "album:*->rating", + "GET", "album:*->title", + "GET", "album:*->rating")) + if err != nil { + fmt.Println(err) + return + } + + for len(values) > 0 { + var title string + rating := -1 // initialize to illegal value to detect nil. + values, err = redis.Scan(values, &title, &rating) + if err != nil { + fmt.Println(err) + return + } + if rating == -1 { + fmt.Println(title, "not-rated") + } else { + fmt.Println(title, rating) + } + } + // Output: + // Beat not-rated + // Earthbound 1 + // Red 5 +} + +type s0 struct { + X int + Y int `redis:"y"` + Bt bool +} + +type s1 struct { + X int `redis:"-"` + I int `redis:"i"` + U uint `redis:"u"` + S string `redis:"s"` + P []byte `redis:"p"` + B bool `redis:"b"` + Bt bool + Bf bool + s0 +} + +var scanStructTests = []struct { + title string + reply []string + value interface{} +}{ + {"basic", + []string{"i", "-1234", "u", "5678", "s", "hello", "p", "world", "b", "t", "Bt", "1", "Bf", "0", "X", "123", "y", "456"}, + &s1{I: -1234, U: 5678, S: "hello", P: []byte("world"), B: true, Bt: true, Bf: false, s0: s0{X: 123, Y: 456}}, + }, +} + +func TestScanStruct(t *testing.T) { + for _, tt := range scanStructTests { + + var reply []interface{} + for _, v := range tt.reply { + reply = append(reply, []byte(v)) + } + + value := reflect.New(reflect.ValueOf(tt.value).Type().Elem()) + + if err := redis.ScanStruct(reply, value.Interface()); err != nil { + t.Fatalf("ScanStruct(%s) returned error %v", tt.title, err) + } + + if !reflect.DeepEqual(value.Interface(), tt.value) { + t.Fatalf("ScanStruct(%s) returned %v, want %v", tt.title, value.Interface(), tt.value) + } + } +} + +func TestBadScanStructArgs(t *testing.T) { + x := []interface{}{"A", "b"} + test := func(v interface{}) { + if err := redis.ScanStruct(x, v); err == nil { + t.Errorf("Expect error for ScanStruct(%T, %T)", x, v) + } + } + + test(nil) + + var v0 *struct{} + test(v0) + + var v1 int + test(&v1) + + x = x[:1] + v2 := struct{ A string }{} + test(&v2) +} + +var scanSliceTests = []struct { + src []interface{} + fieldNames []string + ok bool + dest interface{} +}{ + { + []interface{}{[]byte("1"), nil, []byte("-1")}, + nil, + true, + []int{1, 0, -1}, + }, + { + []interface{}{[]byte("1"), nil, []byte("2")}, + nil, + true, + []uint{1, 0, 2}, + }, + { + []interface{}{[]byte("-1")}, + nil, + false, + []uint{1}, + }, + { + []interface{}{[]byte("hello"), nil, []byte("world")}, + nil, + true, + [][]byte{[]byte("hello"), nil, []byte("world")}, + }, + { + []interface{}{[]byte("hello"), nil, []byte("world")}, + nil, + true, + []string{"hello", "", "world"}, + }, + { + []interface{}{[]byte("a1"), []byte("b1"), []byte("a2"), []byte("b2")}, + nil, + true, + []struct{ A, B string }{{"a1", "b1"}, {"a2", "b2"}}, + }, + { + []interface{}{[]byte("a1"), []byte("b1")}, + nil, + false, + []struct{ A, B, C string }{{"a1", "b1", ""}}, + }, + { + []interface{}{[]byte("a1"), []byte("b1"), []byte("a2"), []byte("b2")}, + nil, + true, + []*struct{ A, B string }{{"a1", "b1"}, {"a2", "b2"}}, + }, + { + []interface{}{[]byte("a1"), []byte("b1"), []byte("a2"), []byte("b2")}, + []string{"A", "B"}, + true, + []struct{ A, C, B string }{{"a1", "", "b1"}, {"a2", "", "b2"}}, + }, + { + []interface{}{[]byte("a1"), []byte("b1"), []byte("a2"), []byte("b2")}, + nil, + false, + []struct{}{}, + }, +} + +func TestScanSlice(t *testing.T) { + for _, tt := range scanSliceTests { + + typ := reflect.ValueOf(tt.dest).Type() + dest := reflect.New(typ) + + err := redis.ScanSlice(tt.src, dest.Interface(), tt.fieldNames...) + if tt.ok != (err == nil) { + t.Errorf("ScanSlice(%v, []%s, %v) returned error %v", tt.src, typ, tt.fieldNames, err) + continue + } + if tt.ok && !reflect.DeepEqual(dest.Elem().Interface(), tt.dest) { + t.Errorf("ScanSlice(src, []%s) returned %#v, want %#v", typ, dest.Elem().Interface(), tt.dest) + } + } +} + +func ExampleScanSlice() { + c, err := dial() + if err != nil { + fmt.Println(err) + return + } + defer c.Close() + + c.Send("HMSET", "album:1", "title", "Red", "rating", 5) + c.Send("HMSET", "album:2", "title", "Earthbound", "rating", 1) + c.Send("HMSET", "album:3", "title", "Beat", "rating", 4) + c.Send("LPUSH", "albums", "1") + c.Send("LPUSH", "albums", "2") + c.Send("LPUSH", "albums", "3") + values, err := redis.Values(c.Do("SORT", "albums", + "BY", "album:*->rating", + "GET", "album:*->title", + "GET", "album:*->rating")) + if err != nil { + fmt.Println(err) + return + } + + var albums []struct { + Title string + Rating int + } + if err := redis.ScanSlice(values, &albums); err != nil { + fmt.Println(err) + return + } + fmt.Printf("%v\n", albums) + // Output: + // [{Earthbound 1} {Beat 4} {Red 5}] +} + +var argsTests = []struct { + title string + actual redis.Args + expected redis.Args +}{ + {"struct ptr", + redis.Args{}.AddFlat(&struct { + I int `redis:"i"` + U uint `redis:"u"` + S string `redis:"s"` + P []byte `redis:"p"` + M map[string]string `redis:"m"` + Bt bool + Bf bool + }{ + -1234, 5678, "hello", []byte("world"), map[string]string{"hello": "world"}, true, false, + }), + redis.Args{"i", int(-1234), "u", uint(5678), "s", "hello", "p", []byte("world"), "m", map[string]string{"hello": "world"}, "Bt", true, "Bf", false}, + }, + {"struct", + redis.Args{}.AddFlat(struct{ I int }{123}), + redis.Args{"I", 123}, + }, + {"slice", + redis.Args{}.Add(1).AddFlat([]string{"a", "b", "c"}).Add(2), + redis.Args{1, "a", "b", "c", 2}, + }, + {"struct omitempty", + redis.Args{}.AddFlat(&struct { + I int `redis:"i,omitempty"` + U uint `redis:"u,omitempty"` + S string `redis:"s,omitempty"` + P []byte `redis:"p,omitempty"` + M map[string]string `redis:"m,omitempty"` + Bt bool `redis:"Bt,omitempty"` + Bf bool `redis:"Bf,omitempty"` + }{ + 0, 0, "", []byte{}, map[string]string{}, true, false, + }), + redis.Args{"Bt", true}, + }, +} + +func TestArgs(t *testing.T) { + for _, tt := range argsTests { + if !reflect.DeepEqual(tt.actual, tt.expected) { + t.Fatalf("%s is %v, want %v", tt.title, tt.actual, tt.expected) + } + } +} + +func ExampleArgs() { + c, err := dial() + if err != nil { + fmt.Println(err) + return + } + defer c.Close() + + var p1, p2 struct { + Title string `redis:"title"` + Author string `redis:"author"` + Body string `redis:"body"` + } + + p1.Title = "Example" + p1.Author = "Gary" + p1.Body = "Hello" + + if _, err := c.Do("HMSET", redis.Args{}.Add("id1").AddFlat(&p1)...); err != nil { + fmt.Println(err) + return + } + + m := map[string]string{ + "title": "Example2", + "author": "Steve", + "body": "Map", + } + + if _, err := c.Do("HMSET", redis.Args{}.Add("id2").AddFlat(m)...); err != nil { + fmt.Println(err) + return + } + + for _, id := range []string{"id1", "id2"} { + + v, err := redis.Values(c.Do("HGETALL", id)) + if err != nil { + fmt.Println(err) + return + } + + if err := redis.ScanStruct(v, &p2); err != nil { + fmt.Println(err) + return + } + + fmt.Printf("%+v\n", p2) + } + + // Output: + // {Title:Example Author:Gary Body:Hello} + // {Title:Example2 Author:Steve Body:Map} +} |