Add dict module

1 files changed, 78 insertions, 0 deletions

diff --git a/dict/dict_test.go b/dict/dict_test.go
new file mode 100644
index 0000000..c5fb717
--- /dev/null
+++ b/dict/dict_test.go
@@ -0,0 +1,78 @@
+package dict
+
+import (
+	"fmt"
+	"slices"
+	"strings"
+	"testing"
+)
+
+func TestDict_Sort(t *testing.T) {
+	d := NewDict[string]()
+
+	d.Set("foo", "foo")
+	d.Set("bar", "bar")
+	d.Set("baz", "baz")
+
+	d.Sort(func(a, b Entry[string]) int {
+		return strings.Compare(a.Key, b.Key)
+	})
+
+	expected := []Entry[string]{
+		{"bar", "bar"},
+		{"baz", "baz"},
+		{"foo", "foo"},
+	}
+
+	verifyMap(t, d)
+
+	if !slices.Equal(d.s, expected) {
+		t.Fatalf("expected %v but got %v", expected, d.s)
+	}
+}
+
+func verifyMap(t *testing.T, dict *Dict[string]) {
+	if len(dict.m) != len(dict.s) {
+		t.Fatalf("length missmatch")
+	}
+
+	for i, s := range dict.s {
+		v, ok := dict.m[s.Key]
+
+		if !ok {
+			t.Fatalf("unknown key %s", s)
+		}
+
+		if v != i {
+			t.Errorf("expected %d but got %d\n", i, v)
+		}
+	}
+}
+
+func BenchmarkDict_Get(b *testing.B) {
+	d := NewDict[int]()
+
+	for i := 0; i < 1000; i++ {
+		d.Set(fmt.Sprintf("key_%d", i), i)
+	}
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		_, _ = d.Get("key_500")
+	}
+}
+
+func BenchmarkDict_GetBytes(b *testing.B) {
+	d := NewDict[int]()
+
+	for i := 0; i < 1000; i++ {
+		d.Set(fmt.Sprintf("key_%d", i), i)
+	}
+
+	keyBytes := []byte("key_500")
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		_, _ = d.GetBytes(keyBytes)
+	}
+}