ref: d62bc74770eb3a5f73a73561b34c5f3351c999ca
dir: /tpl/math/math_test.go/
// Copyright 2017 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package math
import (
"math"
"testing"
qt "github.com/frankban/quicktest"
)
func TestBasicNSArithmetic(t *testing.T) {
t.Parallel()
c := qt.New(t)
ns := New()
for _, test := range []struct {
fn func(a, b interface{}) (interface{}, error)
a interface{}
b interface{}
expect interface{}
}{
{ns.Add, 4, 2, int64(6)},
{ns.Add, 1.0, "foo", false},
{ns.Sub, 4, 2, int64(2)},
{ns.Sub, 1.0, "foo", false},
{ns.Mul, 4, 2, int64(8)},
{ns.Mul, 1.0, "foo", false},
{ns.Div, 4, 2, int64(2)},
{ns.Div, 1.0, "foo", false},
} {
result, err := test.fn(test.a, test.b)
if b, ok := test.expect.(bool); ok && !b {
c.Assert(err, qt.Not(qt.IsNil))
continue
}
c.Assert(err, qt.IsNil)
c.Assert(result, qt.Equals, test.expect)
}
}
func TestCeil(t *testing.T) {
t.Parallel()
c := qt.New(t)
ns := New()
for _, test := range []struct {
x interface{}
expect interface{}
}{
{0.1, 1.0},
{0.5, 1.0},
{1.1, 2.0},
{1.5, 2.0},
{-0.1, 0.0},
{-0.5, 0.0},
{-1.1, -1.0},
{-1.5, -1.0},
{"abc", false},
} {
result, err := ns.Ceil(test.x)
if b, ok := test.expect.(bool); ok && !b {
c.Assert(err, qt.Not(qt.IsNil))
continue
}
c.Assert(err, qt.IsNil)
c.Assert(result, qt.Equals, test.expect)
}
}
func TestFloor(t *testing.T) {
t.Parallel()
c := qt.New(t)
ns := New()
for _, test := range []struct {
x interface{}
expect interface{}
}{
{0.1, 0.0},
{0.5, 0.0},
{1.1, 1.0},
{1.5, 1.0},
{-0.1, -1.0},
{-0.5, -1.0},
{-1.1, -2.0},
{-1.5, -2.0},
{"abc", false},
} {
result, err := ns.Floor(test.x)
if b, ok := test.expect.(bool); ok && !b {
c.Assert(err, qt.Not(qt.IsNil))
continue
}
c.Assert(err, qt.IsNil)
c.Assert(result, qt.Equals, test.expect)
}
}
func TestLog(t *testing.T) {
t.Parallel()
c := qt.New(t)
ns := New()
for _, test := range []struct {
a interface{}
expect interface{}
}{
{1, float64(0)},
{3, float64(1.0986)},
{0, float64(math.Inf(-1))},
{1.0, float64(0)},
{3.1, float64(1.1314)},
{"abc", false},
} {
result, err := ns.Log(test.a)
if b, ok := test.expect.(bool); ok && !b {
c.Assert(err, qt.Not(qt.IsNil))
continue
}
// we compare only 4 digits behind point if its a real float
// otherwise we usually get different float values on the last positions
if result != math.Inf(-1) {
result = float64(int(result*10000)) / 10000
}
c.Assert(err, qt.IsNil)
c.Assert(result, qt.Equals, test.expect)
}
// Separate test for Log(-1) -- returns NaN
result, err := ns.Log(-1)
c.Assert(err, qt.IsNil)
c.Assert(result, qt.Satisfies, math.IsNaN)
}
func TestSqrt(t *testing.T) {
t.Parallel()
c := qt.New(t)
ns := New()
for _, test := range []struct {
a interface{}
expect interface{}
}{
{81, float64(9)},
{0.25, float64(0.5)},
{0, float64(0)},
{"abc", false},
} {
result, err := ns.Sqrt(test.a)
if b, ok := test.expect.(bool); ok && !b {
c.Assert(err, qt.Not(qt.IsNil))
continue
}
// we compare only 4 digits behind point if its a real float
// otherwise we usually get different float values on the last positions
if result != math.Inf(-1) {
result = float64(int(result*10000)) / 10000
}
c.Assert(err, qt.IsNil)
c.Assert(result, qt.Equals, test.expect)
}
// Separate test for Sqrt(-1) -- returns NaN
result, err := ns.Sqrt(-1)
c.Assert(err, qt.IsNil)
c.Assert(result, qt.Satisfies, math.IsNaN)
}
func TestMod(t *testing.T) {
t.Parallel()
c := qt.New(t)
ns := New()
for _, test := range []struct {
a interface{}
b interface{}
expect interface{}
}{
{3, 2, int64(1)},
{3, 1, int64(0)},
{3, 0, false},
{0, 3, int64(0)},
{3.1, 2, int64(1)},
{3, 2.1, int64(1)},
{3.1, 2.1, int64(1)},
{int8(3), int8(2), int64(1)},
{int16(3), int16(2), int64(1)},
{int32(3), int32(2), int64(1)},
{int64(3), int64(2), int64(1)},
{"3", "2", int64(1)},
{"3.1", "2", false},
{"aaa", "0", false},
{"3", "aaa", false},
} {
result, err := ns.Mod(test.a, test.b)
if b, ok := test.expect.(bool); ok && !b {
c.Assert(err, qt.Not(qt.IsNil))
continue
}
c.Assert(err, qt.IsNil)
c.Assert(result, qt.Equals, test.expect)
}
}
func TestModBool(t *testing.T) {
t.Parallel()
c := qt.New(t)
ns := New()
for _, test := range []struct {
a interface{}
b interface{}
expect interface{}
}{
{3, 3, true},
{3, 2, false},
{3, 1, true},
{3, 0, nil},
{0, 3, true},
{3.1, 2, false},
{3, 2.1, false},
{3.1, 2.1, false},
{int8(3), int8(3), true},
{int8(3), int8(2), false},
{int16(3), int16(3), true},
{int16(3), int16(2), false},
{int32(3), int32(3), true},
{int32(3), int32(2), false},
{int64(3), int64(3), true},
{int64(3), int64(2), false},
{"3", "3", true},
{"3", "2", false},
{"3.1", "2", nil},
{"aaa", "0", nil},
{"3", "aaa", nil},
} {
result, err := ns.ModBool(test.a, test.b)
if test.expect == nil {
c.Assert(err, qt.Not(qt.IsNil))
continue
}
c.Assert(err, qt.IsNil)
c.Assert(result, qt.Equals, test.expect)
}
}
func TestRound(t *testing.T) {
t.Parallel()
c := qt.New(t)
ns := New()
for _, test := range []struct {
x interface{}
expect interface{}
}{
{0.1, 0.0},
{0.5, 1.0},
{1.1, 1.0},
{1.5, 2.0},
{-0.1, -0.0},
{-0.5, -1.0},
{-1.1, -1.0},
{-1.5, -2.0},
{"abc", false},
} {
result, err := ns.Round(test.x)
if b, ok := test.expect.(bool); ok && !b {
c.Assert(err, qt.Not(qt.IsNil))
continue
}
c.Assert(err, qt.IsNil)
c.Assert(result, qt.Equals, test.expect)
}
}
func TestPow(t *testing.T) {
t.Parallel()
c := qt.New(t)
ns := New()
for _, test := range []struct {
a interface{}
b interface{}
expect interface{}
}{
{0, 0, float64(1)},
{2, 0, float64(1)},
{2, 3, float64(8)},
{-2, 3, float64(-8)},
{2, -3, float64(0.125)},
{-2, -3, float64(-0.125)},
{0.2, 3, float64(0.008)},
{2, 0.3, float64(1.2311)},
{0.2, 0.3, float64(0.617)},
{"aaa", "3", false},
{"2", "aaa", false},
} {
result, err := ns.Pow(test.a, test.b)
if b, ok := test.expect.(bool); ok && !b {
c.Assert(err, qt.Not(qt.IsNil))
continue
}
// we compare only 4 digits behind point if its a real float
// otherwise we usually get different float values on the last positions
result = float64(int(result*10000)) / 10000
c.Assert(err, qt.IsNil)
c.Assert(result, qt.Equals, test.expect)
}
}