Add live tuples metric tests

Author: diogonicoleti

gauges/table_rows_test.go

@@ -29,3 +29,27 @@ func TestDatabaseDeadRows(t *testing.T) {
 	assert.True(len(metrics) > 0)
 	assertNoErrs(t, gauges)
 }
+
+func TestTableLiveRows(t *testing.T) {
+	var assert = assert.New(t)
+	db, gauges, close := prepare(t)
+	defer close()
+	dropTestTable := createTestTable(t, db)
+	defer dropTestTable()
+
+	var metrics = evaluate(t, gauges.TableLiveRows())
+	assert.True(len(metrics) > 0)
+	assertNoErrs(t, gauges)
+}
+
+func TestDatabaseLiveRows(t *testing.T) {
+	var assert = assert.New(t)
+	db, gauges, close := prepare(t)
+	defer close()
+	dropTestTable := createTestTable(t, db)
+	defer dropTestTable()
+
+	var metrics = evaluate(t, gauges.DatabaseLiveRows())
+	assert.True(len(metrics) > 0)
+	assertNoErrs(t, gauges)
+}