[🤖] Add Unit-Tests

langext/iter_test.go

@@ -0,0 +1,61 @@
+package langext
+
+import (
+	"git.blackforestbytes.com/BlackForestBytes/goext/tst"
+	"testing"
+)
+
+func TestIterSingleValueSeq(t *testing.T) {
+	seq := IterSingleValueSeq(42)
+
+	count := 0
+	var got int
+	for v := range seq {
+		got = v
+		count++
+	}
+
+	tst.AssertEqual(t, count, 1)
+	tst.AssertEqual(t, got, 42)
+}
+
+func TestIterSingleValueSeqString(t *testing.T) {
+	seq := IterSingleValueSeq("hello")
+
+	values := make([]string, 0)
+	for v := range seq {
+		values = append(values, v)
+	}
+
+	tst.AssertEqual(t, len(values), 1)
+	tst.AssertEqual(t, values[0], "hello")
+}
+
+func TestIterSingleValueSeq2(t *testing.T) {
+	seq := IterSingleValueSeq2("key", 42)
+
+	count := 0
+	var k string
+	var v int
+	for kk, vv := range seq {
+		k = kk
+		v = vv
+		count++
+	}
+
+	tst.AssertEqual(t, count, 1)
+	tst.AssertEqual(t, k, "key")
+	tst.AssertEqual(t, v, 42)
+}
+
+func TestIterSingleValueSeqEarlyBreak(t *testing.T) {
+	seq := IterSingleValueSeq(1)
+
+	count := 0
+	for range seq {
+		count++
+		break
+	}
+
+	tst.AssertEqual(t, count, 1)
+}