55 lines
1.1 KiB
Go
55 lines
1.1 KiB
Go
package calc
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import (
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"testing"
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"github.com/stretchr/testify/require"
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)
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func TestNumbers(t *testing.T) {
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result, err := Calc(`1`)
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require.NoError(t, err)
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require.EqualValues(t, 1, result)
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}
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func TestAddition(t *testing.T) {
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result, err := Calc(`1+1`)
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require.NoError(t, err)
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require.EqualValues(t, 2, result)
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}
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func TestSubtraction(t *testing.T) {
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result, err := Calc(`1-1`)
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require.NoError(t, err)
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require.EqualValues(t, 0, result)
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}
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func TestDivision(t *testing.T) {
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result, err := Calc(`1/2`)
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require.NoError(t, err)
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require.EqualValues(t, .5, result)
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}
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func TestMultiplication(t *testing.T) {
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result, err := Calc(`1*2`)
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require.NoError(t, err)
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require.EqualValues(t, 2, result)
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}
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func TestOrderOfOperations(t *testing.T) {
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result, err := Calc(`1+10*2`)
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require.NoError(t, err)
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require.EqualValues(t, 21, result)
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}
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func TestParenthesis(t *testing.T) {
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result, err := Calc(`(1+10)*2`)
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require.NoError(t, err)
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require.EqualValues(t, 22, result)
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}
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func TestRecursive(t *testing.T) {
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result, err := Calc(`(1+(2*(3-(4/(5)))))`)
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require.NoError(t, err)
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require.EqualValues(t, 5.4, result)
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}
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