1
2
3 package matchers
4
5 import (
6 "fmt"
7 "reflect"
8 "strings"
9 )
10
11 func formattedMessage(comparisonMessage string, failurePath []interface{}) string {
12 var diffMessage string
13 if len(failurePath) == 0 {
14 diffMessage = ""
15 } else {
16 diffMessage = fmt.Sprintf("\n\nfirst mismatched key: %s", formattedFailurePath(failurePath))
17 }
18 return fmt.Sprintf("%s%s", comparisonMessage, diffMessage)
19 }
20
21 func formattedFailurePath(failurePath []interface{}) string {
22 formattedPaths := []string{}
23 for i := len(failurePath) - 1; i >= 0; i-- {
24 switch p := failurePath[i].(type) {
25 case int:
26 formattedPaths = append(formattedPaths, fmt.Sprintf(`[%d]`, p))
27 default:
28 if i != len(failurePath)-1 {
29 formattedPaths = append(formattedPaths, ".")
30 }
31 formattedPaths = append(formattedPaths, fmt.Sprintf(`"%s"`, p))
32 }
33 }
34 return strings.Join(formattedPaths, "")
35 }
36
37 func deepEqual(a interface{}, b interface{}) (bool, []interface{}) {
38 var errorPath []interface{}
39 if reflect.TypeOf(a) != reflect.TypeOf(b) {
40 return false, errorPath
41 }
42
43 switch a.(type) {
44 case []interface{}:
45 if len(a.([]interface{})) != len(b.([]interface{})) {
46 return false, errorPath
47 }
48
49 for i, v := range a.([]interface{}) {
50 elementEqual, keyPath := deepEqual(v, b.([]interface{})[i])
51 if !elementEqual {
52 return false, append(keyPath, i)
53 }
54 }
55 return true, errorPath
56
57 case map[interface{}]interface{}:
58 if len(a.(map[interface{}]interface{})) != len(b.(map[interface{}]interface{})) {
59 return false, errorPath
60 }
61
62 for k, v1 := range a.(map[interface{}]interface{}) {
63 v2, ok := b.(map[interface{}]interface{})[k]
64 if !ok {
65 return false, errorPath
66 }
67 elementEqual, keyPath := deepEqual(v1, v2)
68 if !elementEqual {
69 return false, append(keyPath, k)
70 }
71 }
72 return true, errorPath
73
74 case map[string]interface{}:
75 if len(a.(map[string]interface{})) != len(b.(map[string]interface{})) {
76 return false, errorPath
77 }
78
79 for k, v1 := range a.(map[string]interface{}) {
80 v2, ok := b.(map[string]interface{})[k]
81 if !ok {
82 return false, errorPath
83 }
84 elementEqual, keyPath := deepEqual(v1, v2)
85 if !elementEqual {
86 return false, append(keyPath, k)
87 }
88 }
89 return true, errorPath
90
91 default:
92 return a == b, errorPath
93 }
94 }
95
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