1 files changed, 16 insertions, 0 deletions
diff --git a/adjust_test.go b/adjust_test.go
index 7b708ab..28432bc 100644
--- a/adjust_test.go
+++ b/adjust_test.go
@@ -67,3 +67,19 @@ func TestAdjustHelper(t *testing.T) {
 	// testing adjustHelper on not exists worksheet.
 	assert.EqualError(t, f.adjustHelper("SheetN", rows, 0, 0), "sheet SheetN is not exist")
 }
+
+func TestAdjustCalcChain(t *testing.T) {
+	f := NewFile()
+	f.CalcChain = &xlsxCalcChain{
+		C: []xlsxCalcChainC{
+			{R: "B2"},
+		},
+	}
+	assert.NoError(t, f.InsertCol("Sheet1", "A"))
+	assert.NoError(t, f.InsertRow("Sheet1", 1))
+
+	f.CalcChain.C[0].R = "invalid coordinates"
+	assert.EqualError(t, f.InsertCol("Sheet1", "A"), `cannot convert cell "invalid coordinates" to coordinates: invalid cell name "invalid coordinates"`)
+	f.CalcChain = nil
+	assert.NoError(t, f.InsertCol("Sheet1", "A"))
+}