test: add tests for csv reader and writer

input_csv_test.go

@@ -0,0 +1,29 @@
+package script_test
+
+import (
+	"slices"
+	"testing"
+
+	"code.uint32.ru/dmitry/script"
+)
+
+func TestCSVReader(t *testing.T) {
+	t.Parallel()
+	r, err := script.NewCSVReader("testdata/sample_csv.csv")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	want := []string{"one", "two", "three"}
+
+	for range 2 {
+		row, err := r.Read()
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if !slices.Equal(row, want) {
+			t.Fatalf("rows not equal, want: %v, have: %v", want, row)
+		}
+	}
+}