319 lines
7.5 KiB
Go
319 lines
7.5 KiB
Go
package jsonpath
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import (
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"reflect"
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"testing"
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)
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var testData = map[string]interface{}{
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"store": map[string]interface{}{
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"book": []interface{}{
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map[string]interface{}{
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"title": "The Fellowship of the Ring",
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"price": 22.99,
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},
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map[string]interface{}{
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"title": "The Two Towers",
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"price": 23.45,
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},
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},
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"bicycle": map[string]interface{}{
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"color": "red",
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"price": 199.95,
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},
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},
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}
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func TestParser(t *testing.T) {
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tests := []struct {
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path string
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steps []JSONStep
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wantErr bool
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}{
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{
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path: "$.store.bicycle.color",
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steps: []JSONStep{
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{Type: RootStep},
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{Type: ChildStep, Key: "store"},
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{Type: ChildStep, Key: "bicycle"},
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{Type: ChildStep, Key: "color"},
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},
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},
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{
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path: "$..price",
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steps: []JSONStep{
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{Type: RootStep},
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{Type: RecursiveDescentStep, Key: "price"},
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},
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},
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{
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path: "$.store.book[*].title",
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steps: []JSONStep{
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{Type: RootStep},
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{Type: ChildStep, Key: "store"},
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{Type: ChildStep, Key: "book"},
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{Type: IndexStep, Index: -1}, // Wildcard
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{Type: ChildStep, Key: "title"},
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},
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},
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{
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path: "$.store.book[0]",
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steps: []JSONStep{
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{Type: RootStep},
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{Type: ChildStep, Key: "store"},
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{Type: ChildStep, Key: "book"},
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{Type: IndexStep, Index: 0},
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},
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},
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{
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path: "invalid.path",
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wantErr: true,
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},
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{
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path: "$.store.book[abc]",
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wantErr: true,
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},
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}
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for _, tt := range tests {
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t.Run(tt.path, func(t *testing.T) {
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steps, err := ParseJSONPath(tt.path)
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if (err != nil) != tt.wantErr {
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t.Fatalf("ParseJSONPath() error = %v, wantErr %v", err, tt.wantErr)
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}
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if !tt.wantErr && !reflect.DeepEqual(steps, tt.steps) {
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t.Errorf("ParseJSONPath() steps = %+v, want %+v", steps, tt.steps)
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}
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})
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}
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}
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func TestEvaluator(t *testing.T) {
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tests := []struct {
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name string
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path string
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expected []JSONNode
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error bool
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}{
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{
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name: "simple_property_access",
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path: "$.store.bicycle.color",
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expected: []JSONNode{
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{Value: "red", Path: "$.store.bicycle.color"},
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},
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},
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{
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name: "array_index_access",
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path: "$.store.book[0].title",
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expected: []JSONNode{
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{Value: "The Fellowship of the Ring", Path: "$.store.book[0].title"},
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},
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},
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{
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name: "wildcard_array_access",
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path: "$.store.book[*].title",
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expected: []JSONNode{
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{Value: "The Fellowship of the Ring", Path: "$.store.book[0].title"},
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{Value: "The Two Towers", Path: "$.store.book[1].title"},
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},
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},
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{
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name: "recursive_price_search",
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path: "$..price",
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expected: []JSONNode{
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{Value: 22.99, Path: "$.store.book[0].price"},
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{Value: 23.45, Path: "$.store.book[1].price"},
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{Value: 199.95, Path: "$.store.bicycle.price"},
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},
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},
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{
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name: "wildcard_recursive",
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path: "$..*",
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expected: []JSONNode{
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// These will be compared by value only, paths will be validated separately
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{Value: testData["store"].(map[string]interface{})["book"]},
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{Value: testData["store"].(map[string]interface{})["bicycle"]},
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{Value: testData["store"].(map[string]interface{})["book"].([]interface{})[0]},
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{Value: testData["store"].(map[string]interface{})["book"].([]interface{})[1]},
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{Value: "The Fellowship of the Ring"},
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{Value: 22.99},
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{Value: "The Two Towers"},
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{Value: 23.45},
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{Value: "red"},
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{Value: 199.95},
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},
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},
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{
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name: "invalid_index",
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path: "$.store.book[5]",
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expected: []JSONNode{},
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error: true,
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},
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{
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name: "nonexistent_property",
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path: "$.store.nonexistent",
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expected: []JSONNode{},
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error: true,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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// Use GetWithPaths directly
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result, err := Get(testData, tt.path)
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if err != nil {
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if !tt.error {
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t.Errorf("Get() returned error: %v", err)
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}
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return
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}
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// Special handling for wildcard recursive test
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if tt.name == "wildcard_recursive" {
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// Skip length check for wildcard recursive since it might vary
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// Just verify that each expected item is in the results
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// Validate values match and paths are filled in
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for _, e := range tt.expected {
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found := false
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for _, r := range result {
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if reflect.DeepEqual(r.Value, e.Value) {
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found = true
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break
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}
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}
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if !found {
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t.Errorf("Expected value %v not found in results", e.Value)
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}
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}
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return
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}
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if len(result) != len(tt.expected) {
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t.Errorf("Expected %d items, got %d", len(tt.expected), len(result))
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}
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// Validate both values and paths
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for i, e := range tt.expected {
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if i < len(result) {
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if !reflect.DeepEqual(result[i].Value, e.Value) {
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t.Errorf("Value at [%d]: got %v, expected %v", i, result[i].Value, e.Value)
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}
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if result[i].Path != e.Path {
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t.Errorf("Path at [%d]: got %s, expected %s", i, result[i].Path, e.Path)
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}
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}
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}
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})
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}
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}
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func TestEdgeCases(t *testing.T) {
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t.Run("empty_data", func(t *testing.T) {
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result, err := Get(nil, "$.a.b")
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if err == nil {
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t.Errorf("Expected error for empty data")
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return
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}
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if len(result) > 0 {
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t.Errorf("Expected empty result, got %v", result)
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}
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})
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t.Run("empty_path", func(t *testing.T) {
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_, err := ParseJSONPath("")
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if err == nil {
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t.Error("Expected error for empty path")
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}
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})
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t.Run("numeric_keys", func(t *testing.T) {
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data := map[string]interface{}{
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"42": "answer",
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}
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result, err := Get(data, "$.42")
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if err != nil {
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t.Errorf("Get() returned error: %v", err)
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return
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}
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if len(result) == 0 || result[0].Value != "answer" {
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t.Errorf("Expected 'answer', got %v", result)
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}
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})
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}
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func TestGetWithPaths(t *testing.T) {
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tests := []struct {
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name string
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path string
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expected []JSONNode
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}{
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{
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name: "simple_property_access",
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path: "$.store.bicycle.color",
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expected: []JSONNode{
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{Value: "red", Path: "$.store.bicycle.color"},
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},
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},
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{
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name: "array_index_access",
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path: "$.store.book[0].title",
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expected: []JSONNode{
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{Value: "The Fellowship of the Ring", Path: "$.store.book[0].title"},
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},
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},
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{
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name: "wildcard_array_access",
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path: "$.store.book[*].title",
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expected: []JSONNode{
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{Value: "The Fellowship of the Ring", Path: "$.store.book[0].title"},
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{Value: "The Two Towers", Path: "$.store.book[1].title"},
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},
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},
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{
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name: "recursive_price_search",
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path: "$..price",
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expected: []JSONNode{
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{Value: 22.99, Path: "$.store.book[0].price"},
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{Value: 23.45, Path: "$.store.book[1].price"},
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{Value: 199.95, Path: "$.store.bicycle.price"},
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},
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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result, err := Get(testData, tt.path)
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if err != nil {
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t.Errorf("Get() returned error: %v", err)
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return
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}
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// Check if lengths match
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if len(result) != len(tt.expected) {
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t.Errorf("GetWithPaths() returned %d items, expected %d", len(result), len(tt.expected))
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return
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}
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// For each expected item, find its match in the results and verify both value and path
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for _, expected := range tt.expected {
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found := false
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for _, r := range result {
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// First verify the value matches
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if reflect.DeepEqual(r.Value, expected.Value) {
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found = true
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// Then verify the path matches
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if r.Path != expected.Path {
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t.Errorf("Path mismatch for value %v: got %s, expected %s", r.Value, r.Path, expected.Path)
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}
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break
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}
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}
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if !found {
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t.Errorf("Expected node with value %v and path %s not found in results", expected.Value, expected.Path)
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}
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}
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})
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}
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}
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