fix: add support for context sensitive readers

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

readerioeither/array_test.go

@@ -0,0 +1,24 @@
+package readerioeither
+
+import (
+	"context"
+	"testing"
+
+	A "github.com/ibm/fp-go/array"
+	ET "github.com/ibm/fp-go/either"
+	F "github.com/ibm/fp-go/function"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestTraverseArray(t *testing.T) {
+	f := TraverseArray(func(a string) ReaderIOEither[context.Context, string, string] {
+		if len(a) > 0 {
+			return Right[context.Context, string](a + a)
+		}
+		return Left[context.Context, string, string]("e")
+	})
+	ctx := context.Background()
+	assert.Equal(t, ET.Right[string](A.Empty[string]()), F.Pipe1(A.Empty[string](), f)(ctx)())
+	assert.Equal(t, ET.Right[string]([]string{"aa", "bb"}), F.Pipe1([]string{"a", "b"}, f)(ctx)())
+	assert.Equal(t, ET.Left[[]string]("e"), F.Pipe1([]string{"a", ""}, f)(ctx)())
+}