feat(Go-StudyExample):2021/02/09:新增merge源码阅读和单测代码

SourceAnalysisAndTool/mergo@v0.3.11/issue143_test.go

@@ -0,0 +1,61 @@
+package mergo_test
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/imdario/mergo"
+)
+
+func TestIssue143(t *testing.T) {
+	testCases := []struct {
+		options  []func(*mergo.Config)
+		expected func(map[string]interface{}) error
+	}{
+		{
+			options: []func(*mergo.Config){mergo.WithOverride},
+			expected: func(m map[string]interface{}) error {
+				properties := m["properties"].(map[string]interface{})
+				if properties["field1"] != "wrong" {
+					return fmt.Errorf("expected %q, got %v", "wrong", properties["field1"])
+				}
+				return nil
+			},
+		},
+		{
+			options: []func(*mergo.Config){},
+			expected: func(m map[string]interface{}) error {
+				properties := m["properties"].(map[string]interface{})
+				if properties["field1"] == "wrong" {
+					return fmt.Errorf("expected a map, got %v", "wrong")
+				}
+				return nil
+			},
+		},
+	}
+	for _, tC := range testCases {
+		base := map[string]interface{}{
+			"properties": map[string]interface{}{
+				"field1": map[string]interface{}{
+					"type": "text",
+				},
+			},
+		}
+
+		err := mergo.Map(
+			&base,
+			map[string]interface{}{
+				"properties": map[string]interface{}{
+					"field1": "wrong",
+				},
+			},
+			tC.options...,
+		)
+		if err != nil {
+			t.Error(err)
+		}
+		if err := tC.expected(base); err != nil {
+			t.Error(err)
+		}
+	}
+}