👔 up: maputil - fix a method name error, add tests for MergeMultiSMap

maputil/data.go

@@ -20,8 +20,8 @@ func (d Data) Has(key string) bool {
 	return ok
 }
 
-// IsEmtpy if the data map
-func (d Data) IsEmtpy() bool {
+// IsEmpty if the data map
+func (d Data) IsEmpty() bool {
 	return len(d) == 0
 }
 

maputil/data_test.go

@@ -24,7 +24,7 @@ func TestData_usage(t *testing.T) {
 	assert.True(t, mp.Has("k1"))
 	assert.True(t, mp.Bool("k3"))
 	assert.False(t, mp.Bool("k4"))
-	assert.False(t, mp.IsEmtpy())
+	assert.False(t, mp.IsEmpty())
 	assert.Eq(t, 23, mp.Get("k1"))
 	assert.Eq(t, "b", mp.Get("k5.a"))
 	assert.Eq(t, 23, mp.Get("anyMp.b"))

maputil/maputil.go

@@ -16,8 +16,7 @@ const (
 	KeySepChar = '.'
 )
 
-// SimpleMerge simple merge two data map by string key.
-// will merge the src to dst map
+// SimpleMerge simple merge two data map by string key. will merge the src to dst map
 func SimpleMerge(src, dst map[string]any) map[string]any {
 	if len(src) == 0 {
 		return dst
@@ -66,6 +65,27 @@ func MergeStringMap(src, dst map[string]string, ignoreCase bool) map[string]stri
 	return dst
 }
 
+// MergeMultiSMap quick merge multi string-map data.
+func MergeMultiSMap(mps ...map[string]string) map[string]string {
+	newMp := make(map[string]string)
+	for _, mp := range mps {
+		for k, v := range mp {
+			newMp[k] = v
+		}
+	}
+	return newMp
+}
+
+// FilterSMap filter empty elem for the string map.
+func FilterSMap(sm map[string]string) map[string]string {
+	for key, val := range sm {
+		if val == "" {
+			delete(sm, key)
+		}
+	}
+	return sm
+}
+
 // MakeByPath build new value by key names
 //
 // Example:

maputil/maputil_test.go

@@ -49,6 +49,11 @@ func TestMergeStringMap(t *testing.T) {
 
 	ret = maputil.MergeSMap(nil, map[string]string{"a": "v1"}, true)
 	assert.Eq(t, map[string]string{"a": "v1"}, ret)
+
+	ret = maputil.MergeMultiSMap(maputil.SMap{"a": "v1"}, maputil.SMap{"a": "v2"}, maputil.SMap{"b": "v3"})
+	assert.ContainsKeys(t, ret, []string{"a", "b"})
+
+	assert.Eq(t, map[string]string{"a": "v1"}, maputil.FilterSMap(map[string]string{"a": "v1", "b": ""}))
 }
 
 func TestMakeByPath(t *testing.T) {