refactor: add cache tests and remove cache merge task (#14)

util/hash_test.go

@@ -0,0 +1,37 @@
+package util
+
+import "testing"
+
+func TestAsSHA256(t *testing.T) {
+	type args struct {
+		o interface{}
+	}
+	tests := []struct {
+		name string
+		args args
+		want string
+	}{
+		{
+			name: "hash struct",
+			args: args{
+				o: struct {
+					Name    string
+					Surname string
+					Age     int
+				}{
+					Name:    "John",
+					Surname: "Smith",
+					Age:     18,
+				},
+			},
+			want: "f20fe06d96e179073fc3eebac62d7a2edf3164f0c50524d82c0c6390013bbc4a",
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := AsSHA256(tt.args.o); got != tt.want {
+				t.Errorf("AsSHA256() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}