whatcanGOwrong

go/pkg/mod/github.com/jackc/pgio@v1.0.0/write_test.go

@@ -0,0 +1,78 @@
+package pgio
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestAppendUint16NilBuf(t *testing.T) {
+	buf := AppendUint16(nil, 1)
+	if !reflect.DeepEqual(buf, []byte{0, 1}) {
+		t.Errorf("AppendUint16(nil, 1) => %v, want %v", buf, []byte{0, 1})
+	}
+}
+
+func TestAppendUint16EmptyBuf(t *testing.T) {
+	buf := []byte{}
+	buf = AppendUint16(buf, 1)
+	if !reflect.DeepEqual(buf, []byte{0, 1}) {
+		t.Errorf("AppendUint16(nil, 1) => %v, want %v", buf, []byte{0, 1})
+	}
+}
+
+func TestAppendUint16BufWithCapacityDoesNotAllocate(t *testing.T) {
+	buf := make([]byte, 0, 4)
+	AppendUint16(buf, 1)
+	buf = buf[0:2]
+	if !reflect.DeepEqual(buf, []byte{0, 1}) {
+		t.Errorf("AppendUint16(nil, 1) => %v, want %v", buf, []byte{0, 1})
+	}
+}
+
+func TestAppendUint32NilBuf(t *testing.T) {
+	buf := AppendUint32(nil, 1)
+	if !reflect.DeepEqual(buf, []byte{0, 0, 0, 1}) {
+		t.Errorf("AppendUint32(nil, 1) => %v, want %v", buf, []byte{0, 0, 0, 1})
+	}
+}
+
+func TestAppendUint32EmptyBuf(t *testing.T) {
+	buf := []byte{}
+	buf = AppendUint32(buf, 1)
+	if !reflect.DeepEqual(buf, []byte{0, 0, 0, 1}) {
+		t.Errorf("AppendUint32(nil, 1) => %v, want %v", buf, []byte{0, 0, 0, 1})
+	}
+}
+
+func TestAppendUint32BufWithCapacityDoesNotAllocate(t *testing.T) {
+	buf := make([]byte, 0, 4)
+	AppendUint32(buf, 1)
+	buf = buf[0:4]
+	if !reflect.DeepEqual(buf, []byte{0, 0, 0, 1}) {
+		t.Errorf("AppendUint32(nil, 1) => %v, want %v", buf, []byte{0, 0, 0, 1})
+	}
+}
+
+func TestAppendUint64NilBuf(t *testing.T) {
+	buf := AppendUint64(nil, 1)
+	if !reflect.DeepEqual(buf, []byte{0, 0, 0, 0, 0, 0, 0, 1}) {
+		t.Errorf("AppendUint64(nil, 1) => %v, want %v", buf, []byte{0, 0, 0, 0, 0, 0, 0, 1})
+	}
+}
+
+func TestAppendUint64EmptyBuf(t *testing.T) {
+	buf := []byte{}
+	buf = AppendUint64(buf, 1)
+	if !reflect.DeepEqual(buf, []byte{0, 0, 0, 0, 0, 0, 0, 1}) {
+		t.Errorf("AppendUint64(nil, 1) => %v, want %v", buf, []byte{0, 0, 0, 0, 0, 0, 0, 1})
+	}
+}
+
+func TestAppendUint64BufWithCapacityDoesNotAllocate(t *testing.T) {
+	buf := make([]byte, 0, 8)
+	AppendUint64(buf, 1)
+	buf = buf[0:8]
+	if !reflect.DeepEqual(buf, []byte{0, 0, 0, 0, 0, 0, 0, 1}) {
+		t.Errorf("AppendUint64(nil, 1) => %v, want %v", buf, []byte{0, 0, 0, 0, 0, 0, 0, 1})
+	}
+}