func TestParseFormulaMultiplication(t *testing.T) {
formula, _ := calc.ParseFormula("20*3")
if formula.Operator != "*" {
t.Error("expecting operator: multiplication")
} else if formula.Expression1 != 20 {
t.Error("expecting expression1: 20")
} else if formula.Expression2 != 3 {
t.Error("expecting expression2: 3")
}
}
func TestParseFormulaSubtraction(t *testing.T) {
formula, _ := calc.ParseFormula("7-2")
if formula.Operator != "-" {
t.Error("expecting operator: subtraction")
} else if formula.Expression1 != 7 {
t.Error("expecting expression1: 7")
} else if formula.Expression2 != 2 {
t.Error("expecting expression2: 2")
}
}
func TestParseFormulaDivision(t *testing.T) {
formula, _ := calc.ParseFormula("15/5")
if formula.Operator != "/" {
t.Error("expecting operator: division")
} else if formula.Expression1 != 15 {
t.Error("expecting expression1: 15")
} else if formula.Expression2 != 5 {
t.Error("expecting expression2: 5")
}
}
func TestParseFormulaAddition(t *testing.T) {
formula, _ := calc.ParseFormula("10+2")
if formula.Operator != "+" {
t.Error("expecting operator: addition")
} else if formula.Expression1 != 10 {
t.Error("expecting expression1: 10")
} else if formula.Expression2 != 2 {
t.Error("expecting expression2: 2")
}
}
func TestParseFormulaNoOperator(t *testing.T) {
if f, _ := calc.ParseFormula("3"); f.Operator != "+" {
t.Error("ParseFormula(3), expected: addition operator")
}
}