initial checkin

Signed-off-by: Dr. Carsten Leue <carsten.leue@de.ibm.com>

option/sequence_test.go

@@ -0,0 +1,29 @@
+package option
+
+import (
+	"testing"
+
+	T "github.com/ibm/fp-go/tuple"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestSequenceT(t *testing.T) {
+	// one argumemt
+	s1 := SequenceT1[int]
+	assert.Equal(t, Of(T.MakeTuple1(1)), s1(Of(1)))
+
+	// two arguments
+	s2 := SequenceT2[int, string]
+	assert.Equal(t, Of(T.MakeTuple2(1, "a")), s2(Of(1), Of("a")))
+
+	// three arguments
+	s3 := SequenceT3[int, string, bool]
+	assert.Equal(t, Of(T.MakeTuple3(1, "a", true)), s3(Of(1), Of("a"), Of(true)))
+
+	// four arguments
+	s4 := SequenceT4[int, string, bool, int]
+	assert.Equal(t, Of(T.MakeTuple4(1, "a", true, 2)), s4(Of(1), Of("a"), Of(true), Of(2)))
+
+	// three with one none
+	assert.Equal(t, None[T.Tuple3[int, string, bool]](), s3(Of(1), Of("a"), None[bool]()))
+}