feat: add toml config (#1899)

core/mapping/tomlunmarshaler_test.go

@@ -0,0 +1,41 @@
+package mapping
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestUnmarshalToml(t *testing.T) {
+	const input = `a = "foo"
+b = 1
+c = "${FOO}"
+d = "abcd!@#$112"
+`
+	var val struct {
+		A string `json:"a"`
+		B int    `json:"b"`
+		C string `json:"c"`
+		D string `json:"d"`
+	}
+	assert.Nil(t, UnmarshalTomlBytes([]byte(input), &val))
+	assert.Equal(t, "foo", val.A)
+	assert.Equal(t, 1, val.B)
+	assert.Equal(t, "${FOO}", val.C)
+	assert.Equal(t, "abcd!@#$112", val.D)
+}
+
+func TestUnmarshalTomlErrorToml(t *testing.T) {
+	const input = `foo"
+b = 1
+c = "${FOO}"
+d = "abcd!@#$112"
+`
+	var val struct {
+		A string `json:"a"`
+		B int    `json:"b"`
+		C string `json:"c"`
+		D string `json:"d"`
+	}
+	assert.NotNil(t, UnmarshalTomlBytes([]byte(input), &val))
+}