add config

config/reader/json/json_test.go

@@ -0,0 +1,43 @@
+package json
+
+import (
+	"testing"
+
+	"github.com/micro/go-micro/config/source"
+)
+
+func TestReader(t *testing.T) {
+	data := []byte(`{"foo": "bar", "baz": {"bar": "cat"}}`)
+
+	testData := []struct {
+		path  []string
+		value string
+	}{
+		{
+			[]string{"foo"},
+			"bar",
+		},
+		{
+			[]string{"baz", "bar"},
+			"cat",
+		},
+	}
+
+	r := NewReader()
+
+	c, err := r.Merge(&source.ChangeSet{Data: data}, &source.ChangeSet{})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	values, err := r.Values(c)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	for _, test := range testData {
+		if v := values.Get(test.path...).String(""); v != test.value {
+			t.Fatalf("Expected %s got %s for path %v", test.value, v, test.path)
+		}
+	}
+}