70 lines
2.5 KiB
Go
70 lines
2.5 KiB
Go
// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
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// All rights reserved.
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// t_fractions_test.go
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package expr
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import (
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"testing"
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)
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func TestFractionsParser(t *testing.T) {
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section := "Fraction"
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inputs := []inputType{
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/* 1 */ {`1:2`, newFraction(1, 2), nil},
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/* 2 */ {`1:2 + 1`, newFraction(3, 2), nil},
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/* 3 */ {`1:2 - 1`, newFraction(-1, 2), nil},
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/* 4 */ {`1:2 * 1`, newFraction(1, 2), nil},
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/* 5 */ {`1:2 * 2:3`, newFraction(2, 6), nil},
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/* 6 */ {`1:2 / 2:3`, newFraction(3, 4), nil},
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/* 7 */ {`1:"5"`, nil, `denominator must be integer, got string (5)`},
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/* 8 */ {`"1":5`, nil, `numerator must be integer, got string (1)`},
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/* 9 */ {`1:+5`, newFraction(1, 5), nil},
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/* 10 */ {`1:(-2)`, newFraction(-1, 2), nil},
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/* 11 */ {`builtin "math.arith"; add(1:2, 2:3)`, newFraction(7, 6), nil},
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/* 12 */ {`builtin "math.arith"; add(1:2, 1.0, 2)`, float64(3.5), nil},
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/* 13 */ {`builtin "math.arith"; mul(1:2, 2:3)`, newFraction(2, 6), nil},
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/* 14 */ {`builtin "math.arith"; mul(1:2, 1.0, 2)`, float64(1.0), nil},
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/* 15 */ {`1:0`, nil, `[1:3] division by zero`},
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/* 16 */ {`fract(-0.5)`, newFraction(-1, 2), nil},
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/* 17 */ {`fract("")`, (*FractionType)(nil), `bad syntax`},
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/* 18 */ {`fract("-1")`, newFraction(-1, 1), nil},
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/* 19 */ {`fract("+1")`, newFraction(1, 1), nil},
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/* 20 */ {`fract("1a")`, (*FractionType)(nil), `strconv.ParseInt: parsing "1a": invalid syntax`},
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/* 21 */ {`fract(1,0)`, nil, `fract(): division by zero`},
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/* 22 */ {`string(1:2)`, "1:2", nil},
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/* 23 */ {`1+1:2+0.5`, float64(2), nil},
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/* 24 */ {`1:(2-2)`, nil, `[1:3] division by zero`},
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/* 25 */ {`[0,1][1-1]:1`, newFraction(0, 1), nil},
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}
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// runTestSuiteSpec(t, section, inputs, 25)
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runTestSuite(t, section, inputs)
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}
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func TestFractionToStringSimple(t *testing.T) {
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source := newFraction(1, 2)
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want := "1:2"
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got := source.ToString(0)
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if got != want {
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t.Errorf(`(1,2) -> result = %v [%T], want = %v [%T]`, got, got, want, want)
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}
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}
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func TestFractionToStringMultiline(t *testing.T) {
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source := newFraction(1, 2)
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want := "1\n-\n2"
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got := source.ToString(MultiLine)
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if got != want {
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t.Errorf(`(1,2) -> result = %v [%T], want = %v [%T]`, got, got, want, want)
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}
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}
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func TestToStringMultilineTty(t *testing.T) {
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source := newFraction(-1, 2)
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want := "\x1b[4m-1\x1b[0m\n 2"
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got := source.ToString(MultiLine | TTY)
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if got != want {
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t.Errorf(`(1,2) -> result = %#v [%T], want = %#v [%T]`, got, got, want, want)
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}
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}
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