Initial import

struct_test.go

@@ -0,0 +1,203 @@
+package commons
+
+import (
+  "testing"
+)
+
+func TestMapToStruct(t *testing.T) {
+  o := map[string]any {
+    "name": "name1",
+    "age": 22,
+    "active": true,
+  }
+
+  type O struct {
+    Name string
+    Age int
+    Active bool
+  }
+
+  var oo O
+
+  if err := MapToStruct(o, &oo); err != nil {
+    t.Fatalf("1 Failed to convert %v", err)
+  }
+
+  if oo.Name != "name1" || oo.Age != 22 || !oo.Active {
+    t.Fatalf("2 Failed to convert %v", oo)
+  }
+}
+
+func TestMapIsSubset(t *testing.T) {
+  super := map[string]any {
+    "name": "name1",
+    "age": 22,
+    "active": "2",
+  }
+
+  sub := map[string]any {
+    "name": "a",
+  }
+
+  if !MapIsSubset(sub, super) {
+    t.Fatal("Should have indicated that map is a subset")
+  }
+}
+
+func TestMapIsSubset_Nosubset(t *testing.T) {
+  super := map[string]any {
+    "name": "name1",
+    "age": 22,
+    "active": "2",
+  }
+
+  sub := map[string]any {
+    "foo": "a",
+  }
+
+  if MapIsSubset(sub, super) {
+    t.Fatal("Should have indicated that map is a NOT subset")
+  }
+}
+
+func TestMapIsSubsetOfStruct_NoSubset(t *testing.T) {
+  type O struct {
+    Name string
+    Age int `json:"age"`
+    Notes string
+  }
+
+  oo := map[string]any{
+    "name": "A Name",
+    "age": 1,
+    "notes": "dsafda",
+    "other": "dd",
+  }
+
+  if MapIsSubsetOfStruct(oo, &O{}) {
+    t.Fatal("Should have indicated that map is a NOT subset")
+  }
+}
+
+func TestMapIsSubsetOfStruct(t *testing.T) {
+  type O struct {
+    Name string
+    Age int `json:"age"`
+    Notes string
+  }
+
+  oo := map[string]any{
+    "Name": "A Name",
+  }
+
+  if !MapIsSubsetOfStruct(oo, &O{}) {
+    t.Fatal("Should have indicated that map is a subset")
+  }
+}
+
+func TestMapIsSubsetOfStruct_SomeFields(t *testing.T) {
+  type O struct {
+    Name string
+    Age int `json:"age"`
+    Notes string
+  }
+
+  oo := map[string]any{
+    "Name": "A Name",
+    "Foo": "bar",
+  }
+
+  if MapIsSubsetOfStruct(oo, &O{}) {
+    t.Fatal("Should have indicated that map is a NOT subset")
+  }
+}
+
+func TestStructHasJsonName_True(t *testing.T) {
+  type O struct {
+    Name string
+    Age int `json:"age"`
+    Notes string
+  }
+
+  o := &O{
+  }
+
+  if !StructHasJsonName(o, "age") {
+    t.Fatal("False negative for json tag")
+  }
+}
+
+func TestStructHasJsonName_False(t *testing.T) {
+  type O struct {
+    Name string
+    Age int `json:"age"`
+    Notes string
+  }
+
+  o := &O{
+  }
+
+  if StructHasJsonName(o, "foo") {
+    t.Fatal("False positive for json tag")
+  }
+}
+
+func TestStructHasBsonName_True(t *testing.T) {
+  type O struct {
+    Name string
+    Age int `bson:"age"`
+    Notes string
+  }
+
+  o := &O{
+  }
+
+  if !StructHasBsonName(o, "age") {
+    t.Fatal("False negative for bson tag")
+  }
+}
+
+func TestStructHasBsonName_False(t *testing.T) {
+  type O struct {
+    Name string
+    Age int `bson:"age"`
+    Notes string
+  }
+
+  o := &O{
+  }
+
+  if StructHasBsonName(o, "foo") {
+    t.Fatal("False positive for bson tag")
+  }
+}
+
+func TestCopyMatching(t *testing.T) {
+
+  type O struct {
+    Name string
+    Age int
+    Notes string
+  }
+
+  type OO struct {
+    Name string
+    Age int
+    Active bool
+  }
+
+  from := &O{
+    Name: "Nick",
+    Age: 15,
+    Notes: "Some notes about nick",
+  }
+
+  var to OO
+
+  StructCopyMatching(from, &to)
+
+  if to.Name != "Nick" && to.Age != 15 && to.Active != true {
+    t.Fatalf("Failed to copy matching fields to %v", to)
+  }
+
+}