New test file for specific code section or data type

2024-06-01 16:31:50 +02:00
parent f41ea96d17
commit f66cd1fdb1
19 changed files with 488 additions and 214 deletions
@@ -0,0 +1,66 @@
+// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
+// All rights reserved.
+
+// t_fractions_test.go
+package expr
+
+import (
+	"errors"
+	"testing"
+)
+
+func TestFractionsParser(t *testing.T) {
+	section := "Fraction"
+	inputs := []inputType{
+		/*   1 */ {`1|2`, newFraction(1, 2), nil},
+		/*   2 */ {`1|2 + 1`, newFraction(3, 2), nil},
+		/*   3 */ {`1|2 - 1`, newFraction(-1, 2), nil},
+		/*   4 */ {`1|2 * 1`, newFraction(1, 2), nil},
+		/*   5 */ {`1|2 * 2|3`, newFraction(2, 6), nil},
+		/*   6 */ {`1|2 / 2|3`, newFraction(3, 4), nil},
+		/*   7 */ {`1|"5"`, nil, errors.New(`denominator must be integer, got string (5)`)},
+		/*   8 */ {`"1"|5`, nil, errors.New(`numerator must be integer, got string (1)`)},
+		/*   9 */ {`1|+5`, nil, errors.New(`[1:3] infix operator "|" requires two non-nil operands, got 1`)},
+		/*  10 */ {`1|(-2)`, newFraction(-1, 2), nil},
+		/*  11 */ {`builtin "math.arith"; add(1|2, 2|3)`, newFraction(7, 6), nil},
+		/*  12 */ {`builtin "math.arith"; add(1|2, 1.0, 2)`, float64(3.5), nil},
+		/*  13 */ {`builtin "math.arith"; mul(1|2, 2|3)`, newFraction(2, 6), nil},
+		/*  14 */ {`builtin "math.arith"; mul(1|2, 1.0, 2)`, float64(1.0), nil},
+		/*  15 */ {`1|0`, nil, errors.New(`division by zero`)},
+		/*  16 */ {`fract(-0.5)`, newFraction(-1, 2), nil},
+		/*  17 */ {`fract("")`, (*FractionType)(nil), errors.New(`bad syntax`)},
+		/*  18 */ {`fract("-1")`, newFraction(-1, 1), nil},
+		/*  19 */ {`fract("+1")`, newFraction(1, 1), nil},
+		/*  20 */ {`fract("1a")`, (*FractionType)(nil), errors.New(`strconv.ParseInt: parsing "1a": invalid syntax`)},
+		/*  21 */ {`fract(1,0)`, nil, errors.New(`fract(): division by zero`)},
+	}
+	parserTest(t, section, inputs)
+}
+
+func TestFractionToStringSimple(t *testing.T) {
+	source := newFraction(1, 2)
+	want := "1|2"
+	got := source.ToString(0)
+	if got != want {
+		t.Errorf(`(1,2) -> result = %v [%T], want = %v [%T]`, got, got, want, want)
+	}
+}
+
+func TestFractionToStringMultiline(t *testing.T) {
+	source := newFraction(1, 2)
+	want := "1\n-\n2"
+	got := source.ToString(MultiLine)
+	if got != want {
+		t.Errorf(`(1,2) -> result = %v [%T], want = %v [%T]`, got, got, want, want)
+	}
+}
+
+// TODO Check this test: the output string ends with a space
+func _TestToStringMultilineTty(t *testing.T) {
+	source := newFraction(-1, 2)
+	want := "\x1b[4m-1\x1b[0m\n2"
+	got := source.ToString(MultiLine | TTY)
+	if got != want {
+		t.Errorf(`(1,2) -> result = %#v [%T], want = %#v [%T]`, got, got, want, want)
+	}
+}