test: add test for dict's Iter method.

Signed-off-by: ghosind <ghosind@gmail.com>

dict/dict_go123_test.go

@@ -0,0 +1,19 @@
+//go:build go1.23
+
+package dict
+
+import (
+	"github.com/ghosind/collection"
+	"github.com/ghosind/go-assert"
+)
+
+func testDictIter(a *assert.Assertion, m collection.Dict[int, int], data []int) {
+	n := 0
+
+	for k, v := range m.Iter() {
+		n++
+		a.EqualNow(v, data[k])
+	}
+
+	a.EqualNow(n, m.Size())
+}

dict/dict_pre_go123_test.go

@@ -0,0 +1,12 @@
+//go:build !go1.23
+
+package dict
+
+import (
+	"github.com/ghosind/collection"
+	"github.com/ghosind/go-assert"
+)
+
+func testDictIter(a *assert.Assertion, m collection.Dict[int, int], data []int) {
+	// Do nothing
+}

dict/dict_test.go

@@ -151,6 +151,8 @@ func testDict(a *assert.Assertion, m collection.Dict[int, int]) {
 
 	testDictForEach(a, m, data)
 
+	testDictIter(a, m, data)
+
 	testDictKeys(a, m)
 
 	testDictValues(a, m)