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greater_or_equal_test.go
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// Copyright 2011 Aaron Jacobs. All Rights Reserved.
// Author: [email protected] (Aaron Jacobs)
//
// 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 oglematchers_test
import (
"math"
. "github.com/jacobsa/oglematchers"
. "github.com/jacobsa/ogletest"
)
////////////////////////////////////////////////////////////////////////
// Helpers
////////////////////////////////////////////////////////////////////////
type GreaterOrEqualTest struct {
}
func init() { RegisterTestSuite(&GreaterOrEqualTest{}) }
type geTestCase struct {
candidate interface{}
expectedResult bool
shouldBeFatal bool
expectedError string
}
func (t *GreaterOrEqualTest) checkTestCases(matcher Matcher, cases []geTestCase) {
for i, c := range cases {
err := matcher.Matches(c.candidate)
ExpectThat(
(err == nil),
Equals(c.expectedResult),
"Case %d (candidate %v)",
i,
c.candidate)
if err == nil {
continue
}
_, isFatal := err.(*FatalError)
ExpectEq(
c.shouldBeFatal,
isFatal,
"Case %d (candidate %v)",
i,
c.candidate)
ExpectThat(
err,
Error(Equals(c.expectedError)),
"Case %d (candidate %v)",
i,
c.candidate)
}
}
////////////////////////////////////////////////////////////////////////
// Integer literals
////////////////////////////////////////////////////////////////////////
func (t *GreaterOrEqualTest) IntegerCandidateBadTypes() {
matcher := GreaterOrEqual(int(-150))
cases := []geTestCase{
geTestCase{true, false, true, "which is not comparable"},
geTestCase{complex64(-151), false, true, "which is not comparable"},
geTestCase{complex128(-151), false, true, "which is not comparable"},
geTestCase{[...]int{-151}, false, true, "which is not comparable"},
geTestCase{make(chan int), false, true, "which is not comparable"},
geTestCase{func() {}, false, true, "which is not comparable"},
geTestCase{map[int]int{}, false, true, "which is not comparable"},
geTestCase{&geTestCase{}, false, true, "which is not comparable"},
geTestCase{make([]int, 0), false, true, "which is not comparable"},
geTestCase{"-151", false, true, "which is not comparable"},
geTestCase{geTestCase{}, false, true, "which is not comparable"},
}
t.checkTestCases(matcher, cases)
}
func (t *GreaterOrEqualTest) FloatCandidateBadTypes() {
matcher := GreaterOrEqual(float32(-150))
cases := []geTestCase{
geTestCase{true, false, true, "which is not comparable"},
geTestCase{complex64(-151), false, true, "which is not comparable"},
geTestCase{complex128(-151), false, true, "which is not comparable"},
geTestCase{[...]int{-151}, false, true, "which is not comparable"},
geTestCase{make(chan int), false, true, "which is not comparable"},
geTestCase{func() {}, false, true, "which is not comparable"},
geTestCase{map[int]int{}, false, true, "which is not comparable"},
geTestCase{&geTestCase{}, false, true, "which is not comparable"},
geTestCase{make([]int, 0), false, true, "which is not comparable"},
geTestCase{"-151", false, true, "which is not comparable"},
geTestCase{geTestCase{}, false, true, "which is not comparable"},
}
t.checkTestCases(matcher, cases)
}
func (t *GreaterOrEqualTest) StringCandidateBadTypes() {
matcher := GreaterOrEqual("17")
cases := []geTestCase{
geTestCase{true, false, true, "which is not comparable"},
geTestCase{int(0), false, true, "which is not comparable"},
geTestCase{int8(0), false, true, "which is not comparable"},
geTestCase{int16(0), false, true, "which is not comparable"},
geTestCase{int32(0), false, true, "which is not comparable"},
geTestCase{int64(0), false, true, "which is not comparable"},
geTestCase{uint(0), false, true, "which is not comparable"},
geTestCase{uint8(0), false, true, "which is not comparable"},
geTestCase{uint16(0), false, true, "which is not comparable"},
geTestCase{uint32(0), false, true, "which is not comparable"},
geTestCase{uint64(0), false, true, "which is not comparable"},
geTestCase{float32(0), false, true, "which is not comparable"},
geTestCase{float64(0), false, true, "which is not comparable"},
geTestCase{complex64(-151), false, true, "which is not comparable"},
geTestCase{complex128(-151), false, true, "which is not comparable"},
geTestCase{[...]int{-151}, false, true, "which is not comparable"},
geTestCase{make(chan int), false, true, "which is not comparable"},
geTestCase{func() {}, false, true, "which is not comparable"},
geTestCase{map[int]int{}, false, true, "which is not comparable"},
geTestCase{&geTestCase{}, false, true, "which is not comparable"},
geTestCase{make([]int, 0), false, true, "which is not comparable"},
geTestCase{geTestCase{}, false, true, "which is not comparable"},
}
t.checkTestCases(matcher, cases)
}
func (t *GreaterOrEqualTest) BadArgument() {
panicked := false
defer func() {
ExpectThat(panicked, Equals(true))
}()
defer func() {
if r := recover(); r != nil {
panicked = true
}
}()
GreaterOrEqual(complex128(0))
}
////////////////////////////////////////////////////////////////////////
// Integer literals
////////////////////////////////////////////////////////////////////////
func (t *GreaterOrEqualTest) NegativeIntegerLiteral() {
matcher := GreaterOrEqual(-150)
desc := matcher.Description()
expectedDesc := "greater than or equal to -150"
ExpectThat(desc, Equals(expectedDesc))
cases := []geTestCase{
// Signed integers.
geTestCase{-(1 << 30), false, false, ""},
geTestCase{-151, false, false, ""},
geTestCase{-150, true, false, ""},
geTestCase{0, true, false, ""},
geTestCase{17, true, false, ""},
geTestCase{int(-(1 << 30)), false, false, ""},
geTestCase{int(-151), false, false, ""},
geTestCase{int(-150), true, false, ""},
geTestCase{int(0), true, false, ""},
geTestCase{int(17), true, false, ""},
geTestCase{int8(-127), true, false, ""},
geTestCase{int8(0), true, false, ""},
geTestCase{int8(17), true, false, ""},
geTestCase{int16(-(1 << 14)), false, false, ""},
geTestCase{int16(-151), false, false, ""},
geTestCase{int16(-150), true, false, ""},
geTestCase{int16(0), true, false, ""},
geTestCase{int16(17), true, false, ""},
geTestCase{int32(-(1 << 30)), false, false, ""},
geTestCase{int32(-151), false, false, ""},
geTestCase{int32(-150), true, false, ""},
geTestCase{int32(0), true, false, ""},
geTestCase{int32(17), true, false, ""},
geTestCase{int64(-(1 << 30)), false, false, ""},
geTestCase{int64(-151), false, false, ""},
geTestCase{int64(-150), true, false, ""},
geTestCase{int64(0), true, false, ""},
geTestCase{int64(17), true, false, ""},
// Unsigned integers.
geTestCase{uint((1 << 32) - 151), true, false, ""},
geTestCase{uint(0), true, false, ""},
geTestCase{uint(17), true, false, ""},
geTestCase{uint8(0), true, false, ""},
geTestCase{uint8(17), true, false, ""},
geTestCase{uint8(253), true, false, ""},
geTestCase{uint16((1 << 16) - 151), true, false, ""},
geTestCase{uint16(0), true, false, ""},
geTestCase{uint16(17), true, false, ""},
geTestCase{uint32((1 << 32) - 151), true, false, ""},
geTestCase{uint32(0), true, false, ""},
geTestCase{uint32(17), true, false, ""},
geTestCase{uint64((1 << 64) - 151), true, false, ""},
geTestCase{uint64(0), true, false, ""},
geTestCase{uint64(17), true, false, ""},
geTestCase{uintptr((1 << 64) - 151), true, false, ""},
geTestCase{uintptr(0), true, false, ""},
geTestCase{uintptr(17), true, false, ""},
// Floating point.
geTestCase{float32(-(1 << 30)), false, false, ""},
geTestCase{float32(-151), false, false, ""},
geTestCase{float32(-150.1), false, false, ""},
geTestCase{float32(-150), true, false, ""},
geTestCase{float32(-149.9), true, false, ""},
geTestCase{float32(0), true, false, ""},
geTestCase{float32(17), true, false, ""},
geTestCase{float32(160), true, false, ""},
geTestCase{float64(-(1 << 30)), false, false, ""},
geTestCase{float64(-151), false, false, ""},
geTestCase{float64(-150.1), false, false, ""},
geTestCase{float64(-150), true, false, ""},
geTestCase{float64(-149.9), true, false, ""},
geTestCase{float64(0), true, false, ""},
geTestCase{float64(17), true, false, ""},
geTestCase{float64(160), true, false, ""},
}
t.checkTestCases(matcher, cases)
}
func (t *GreaterOrEqualTest) ZeroIntegerLiteral() {
matcher := GreaterOrEqual(0)
desc := matcher.Description()
expectedDesc := "greater than or equal to 0"
ExpectThat(desc, Equals(expectedDesc))
cases := []geTestCase{
// Signed integers.
geTestCase{-(1 << 30), false, false, ""},
geTestCase{-1, false, false, ""},
geTestCase{0, true, false, ""},
geTestCase{1, true, false, ""},
geTestCase{17, true, false, ""},
geTestCase{(1 << 30), true, false, ""},
geTestCase{int(-(1 << 30)), false, false, ""},
geTestCase{int(-1), false, false, ""},
geTestCase{int(0), true, false, ""},
geTestCase{int(1), true, false, ""},
geTestCase{int(17), true, false, ""},
geTestCase{int8(-1), false, false, ""},
geTestCase{int8(0), true, false, ""},
geTestCase{int8(1), true, false, ""},
geTestCase{int16(-(1 << 14)), false, false, ""},
geTestCase{int16(-1), false, false, ""},
geTestCase{int16(0), true, false, ""},
geTestCase{int16(1), true, false, ""},
geTestCase{int16(17), true, false, ""},
geTestCase{int32(-(1 << 30)), false, false, ""},
geTestCase{int32(-1), false, false, ""},
geTestCase{int32(0), true, false, ""},
geTestCase{int32(1), true, false, ""},
geTestCase{int32(17), true, false, ""},
geTestCase{int64(-(1 << 30)), false, false, ""},
geTestCase{int64(-1), false, false, ""},
geTestCase{int64(0), true, false, ""},
geTestCase{int64(1), true, false, ""},
geTestCase{int64(17), true, false, ""},
// Unsigned integers.
geTestCase{uint((1 << 32) - 1), true, false, ""},
geTestCase{uint(0), true, false, ""},
geTestCase{uint(17), true, false, ""},
geTestCase{uint8(0), true, false, ""},
geTestCase{uint8(17), true, false, ""},
geTestCase{uint8(253), true, false, ""},
geTestCase{uint16((1 << 16) - 1), true, false, ""},
geTestCase{uint16(0), true, false, ""},
geTestCase{uint16(17), true, false, ""},
geTestCase{uint32((1 << 32) - 1), true, false, ""},
geTestCase{uint32(0), true, false, ""},
geTestCase{uint32(17), true, false, ""},
geTestCase{uint64((1 << 64) - 1), true, false, ""},
geTestCase{uint64(0), true, false, ""},
geTestCase{uint64(17), true, false, ""},
geTestCase{uintptr((1 << 64) - 1), true, false, ""},
geTestCase{uintptr(0), true, false, ""},
geTestCase{uintptr(17), true, false, ""},
// Floating point.
geTestCase{float32(-(1 << 30)), false, false, ""},
geTestCase{float32(-1), false, false, ""},
geTestCase{float32(-0.1), false, false, ""},
geTestCase{float32(-0.0), true, false, ""},
geTestCase{float32(0), true, false, ""},
geTestCase{float32(0.1), true, false, ""},
geTestCase{float32(17), true, false, ""},
geTestCase{float32(160), true, false, ""},
geTestCase{float64(-(1 << 30)), false, false, ""},
geTestCase{float64(-1), false, false, ""},
geTestCase{float64(-0.1), false, false, ""},
geTestCase{float64(-0), true, false, ""},
geTestCase{float64(0), true, false, ""},
geTestCase{float64(17), true, false, ""},
geTestCase{float64(160), true, false, ""},
}
t.checkTestCases(matcher, cases)
}
func (t *GreaterOrEqualTest) PositiveIntegerLiteral() {
matcher := GreaterOrEqual(150)
desc := matcher.Description()
expectedDesc := "greater than or equal to 150"
ExpectThat(desc, Equals(expectedDesc))
cases := []geTestCase{
// Signed integers.
geTestCase{-1, false, false, ""},
geTestCase{149, false, false, ""},
geTestCase{150, true, false, ""},
geTestCase{151, true, false, ""},
geTestCase{int(-1), false, false, ""},
geTestCase{int(149), false, false, ""},
geTestCase{int(150), true, false, ""},
geTestCase{int(151), true, false, ""},
geTestCase{int8(-1), false, false, ""},
geTestCase{int8(0), false, false, ""},
geTestCase{int8(17), false, false, ""},
geTestCase{int8(127), false, false, ""},
geTestCase{int16(-1), false, false, ""},
geTestCase{int16(149), false, false, ""},
geTestCase{int16(150), true, false, ""},
geTestCase{int16(151), true, false, ""},
geTestCase{int32(-1), false, false, ""},
geTestCase{int32(149), false, false, ""},
geTestCase{int32(150), true, false, ""},
geTestCase{int32(151), true, false, ""},
geTestCase{int64(-1), false, false, ""},
geTestCase{int64(149), false, false, ""},
geTestCase{int64(150), true, false, ""},
geTestCase{int64(151), true, false, ""},
// Unsigned integers.
geTestCase{uint(0), false, false, ""},
geTestCase{uint(149), false, false, ""},
geTestCase{uint(150), true, false, ""},
geTestCase{uint(151), true, false, ""},
geTestCase{uint8(0), false, false, ""},
geTestCase{uint8(127), false, false, ""},
geTestCase{uint16(0), false, false, ""},
geTestCase{uint16(149), false, false, ""},
geTestCase{uint16(150), true, false, ""},
geTestCase{uint16(151), true, false, ""},
geTestCase{uint32(0), false, false, ""},
geTestCase{uint32(149), false, false, ""},
geTestCase{uint32(150), true, false, ""},
geTestCase{uint32(151), true, false, ""},
geTestCase{uint64(0), false, false, ""},
geTestCase{uint64(149), false, false, ""},
geTestCase{uint64(150), true, false, ""},
geTestCase{uint64(151), true, false, ""},
geTestCase{uintptr(0), false, false, ""},
geTestCase{uintptr(149), false, false, ""},
geTestCase{uintptr(150), true, false, ""},
geTestCase{uintptr(151), true, false, ""},
// Floating point.
geTestCase{float32(-1), false, false, ""},
geTestCase{float32(149), false, false, ""},
geTestCase{float32(149.9), false, false, ""},
geTestCase{float32(150), true, false, ""},
geTestCase{float32(150.1), true, false, ""},
geTestCase{float32(151), true, false, ""},
geTestCase{float64(-1), false, false, ""},
geTestCase{float64(149), false, false, ""},
geTestCase{float64(149.9), false, false, ""},
geTestCase{float64(150), true, false, ""},
geTestCase{float64(150.1), true, false, ""},
geTestCase{float64(151), true, false, ""},
}
t.checkTestCases(matcher, cases)
}
////////////////////////////////////////////////////////////////////////
// Float literals
////////////////////////////////////////////////////////////////////////
func (t *GreaterOrEqualTest) NegativeFloatLiteral() {
matcher := GreaterOrEqual(-150.1)
desc := matcher.Description()
expectedDesc := "greater than or equal to -150.1"
ExpectThat(desc, Equals(expectedDesc))
cases := []geTestCase{
// Signed integers.
geTestCase{-(1 << 30), false, false, ""},
geTestCase{-151, false, false, ""},
geTestCase{-150, true, false, ""},
geTestCase{0, true, false, ""},
geTestCase{17, true, false, ""},
geTestCase{int(-(1 << 30)), false, false, ""},
geTestCase{int(-151), false, false, ""},
geTestCase{int(-150), true, false, ""},
geTestCase{int(0), true, false, ""},
geTestCase{int(17), true, false, ""},
geTestCase{int8(-127), true, false, ""},
geTestCase{int8(0), true, false, ""},
geTestCase{int8(17), true, false, ""},
geTestCase{int16(-(1 << 14)), false, false, ""},
geTestCase{int16(-151), false, false, ""},
geTestCase{int16(-150), true, false, ""},
geTestCase{int16(0), true, false, ""},
geTestCase{int16(17), true, false, ""},
geTestCase{int32(-(1 << 30)), false, false, ""},
geTestCase{int32(-151), false, false, ""},
geTestCase{int32(-150), true, false, ""},
geTestCase{int32(0), true, false, ""},
geTestCase{int32(17), true, false, ""},
geTestCase{int64(-(1 << 30)), false, false, ""},
geTestCase{int64(-151), false, false, ""},
geTestCase{int64(-150), true, false, ""},
geTestCase{int64(0), true, false, ""},
geTestCase{int64(17), true, false, ""},
// Unsigned integers.
geTestCase{uint((1 << 32) - 151), true, false, ""},
geTestCase{uint(0), true, false, ""},
geTestCase{uint(17), true, false, ""},
geTestCase{uint8(0), true, false, ""},
geTestCase{uint8(17), true, false, ""},
geTestCase{uint8(253), true, false, ""},
geTestCase{uint16((1 << 16) - 151), true, false, ""},
geTestCase{uint16(0), true, false, ""},
geTestCase{uint16(17), true, false, ""},
geTestCase{uint32((1 << 32) - 151), true, false, ""},
geTestCase{uint32(0), true, false, ""},
geTestCase{uint32(17), true, false, ""},
geTestCase{uint64((1 << 64) - 151), true, false, ""},
geTestCase{uint64(0), true, false, ""},
geTestCase{uint64(17), true, false, ""},
geTestCase{uintptr((1 << 64) - 151), true, false, ""},
geTestCase{uintptr(0), true, false, ""},
geTestCase{uintptr(17), true, false, ""},
// Floating point.
geTestCase{float32(-(1 << 30)), false, false, ""},
geTestCase{float32(-151), false, false, ""},
geTestCase{float32(-150.2), false, false, ""},
geTestCase{float32(-150.1), true, false, ""},
geTestCase{float32(-150), true, false, ""},
geTestCase{float32(0), true, false, ""},
geTestCase{float32(17), true, false, ""},
geTestCase{float32(160), true, false, ""},
geTestCase{float64(-(1 << 30)), false, false, ""},
geTestCase{float64(-151), false, false, ""},
geTestCase{float64(-150.2), false, false, ""},
geTestCase{float64(-150.1), true, false, ""},
geTestCase{float64(-150), true, false, ""},
geTestCase{float64(0), true, false, ""},
geTestCase{float64(17), true, false, ""},
geTestCase{float64(160), true, false, ""},
}
t.checkTestCases(matcher, cases)
}
func (t *GreaterOrEqualTest) PositiveFloatLiteral() {
matcher := GreaterOrEqual(149.9)
desc := matcher.Description()
expectedDesc := "greater than or equal to 149.9"
ExpectThat(desc, Equals(expectedDesc))
cases := []geTestCase{
// Signed integers.
geTestCase{-1, false, false, ""},
geTestCase{149, false, false, ""},
geTestCase{150, true, false, ""},
geTestCase{151, true, false, ""},
geTestCase{int(-1), false, false, ""},
geTestCase{int(149), false, false, ""},
geTestCase{int(150), true, false, ""},
geTestCase{int(151), true, false, ""},
geTestCase{int8(-1), false, false, ""},
geTestCase{int8(0), false, false, ""},
geTestCase{int8(17), false, false, ""},
geTestCase{int8(127), false, false, ""},
geTestCase{int16(-1), false, false, ""},
geTestCase{int16(149), false, false, ""},
geTestCase{int16(150), true, false, ""},
geTestCase{int16(151), true, false, ""},
geTestCase{int32(-1), false, false, ""},
geTestCase{int32(149), false, false, ""},
geTestCase{int32(150), true, false, ""},
geTestCase{int32(151), true, false, ""},
geTestCase{int64(-1), false, false, ""},
geTestCase{int64(149), false, false, ""},
geTestCase{int64(150), true, false, ""},
geTestCase{int64(151), true, false, ""},
// Unsigned integers.
geTestCase{uint(0), false, false, ""},
geTestCase{uint(149), false, false, ""},
geTestCase{uint(150), true, false, ""},
geTestCase{uint(151), true, false, ""},
geTestCase{uint8(0), false, false, ""},
geTestCase{uint8(127), false, false, ""},
geTestCase{uint16(0), false, false, ""},
geTestCase{uint16(149), false, false, ""},
geTestCase{uint16(150), true, false, ""},
geTestCase{uint16(151), true, false, ""},
geTestCase{uint32(0), false, false, ""},
geTestCase{uint32(149), false, false, ""},
geTestCase{uint32(150), true, false, ""},
geTestCase{uint32(151), true, false, ""},
geTestCase{uint64(0), false, false, ""},
geTestCase{uint64(149), false, false, ""},
geTestCase{uint64(150), true, false, ""},
geTestCase{uint64(151), true, false, ""},
geTestCase{uintptr(0), false, false, ""},
geTestCase{uintptr(149), false, false, ""},
geTestCase{uintptr(150), true, false, ""},
geTestCase{uintptr(151), true, false, ""},
// Floating point.
geTestCase{float32(-1), false, false, ""},
geTestCase{float32(149), false, false, ""},
geTestCase{float32(149.8), false, false, ""},
geTestCase{float32(149.9), true, false, ""},
geTestCase{float32(150), true, false, ""},
geTestCase{float32(151), true, false, ""},
geTestCase{float64(-1), false, false, ""},
geTestCase{float64(149), false, false, ""},
geTestCase{float64(149.8), false, false, ""},
geTestCase{float64(149.9), true, false, ""},
geTestCase{float64(150), true, false, ""},
geTestCase{float64(151), true, false, ""},
}
t.checkTestCases(matcher, cases)
}
////////////////////////////////////////////////////////////////////////
// Subtle cases
////////////////////////////////////////////////////////////////////////
func (t *GreaterOrEqualTest) Int64NotExactlyRepresentableBySinglePrecision() {
// Single-precision floats don't have enough bits to represent the integers
// near this one distinctly, so [2^25-1, 2^25+2] all receive the same value
// and should be treated as equivalent when floats are in the mix.
const kTwoTo25 = 1 << 25
matcher := GreaterOrEqual(int64(kTwoTo25 + 1))
desc := matcher.Description()
expectedDesc := "greater than or equal to 33554433"
ExpectThat(desc, Equals(expectedDesc))
cases := []geTestCase{
// Signed integers.
geTestCase{-1, false, false, ""},
geTestCase{kTwoTo25 + 0, false, false, ""},
geTestCase{kTwoTo25 + 1, true, false, ""},
geTestCase{kTwoTo25 + 2, true, false, ""},
geTestCase{int(-1), false, false, ""},
geTestCase{int(kTwoTo25 + 0), false, false, ""},
geTestCase{int(kTwoTo25 + 1), true, false, ""},
geTestCase{int(kTwoTo25 + 2), true, false, ""},
geTestCase{int8(-1), false, false, ""},
geTestCase{int8(127), false, false, ""},
geTestCase{int16(-1), false, false, ""},
geTestCase{int16(0), false, false, ""},
geTestCase{int16(32767), false, false, ""},
geTestCase{int32(-1), false, false, ""},
geTestCase{int32(kTwoTo25 + 0), false, false, ""},
geTestCase{int32(kTwoTo25 + 1), true, false, ""},
geTestCase{int32(kTwoTo25 + 2), true, false, ""},
geTestCase{int64(-1), false, false, ""},
geTestCase{int64(kTwoTo25 + 0), false, false, ""},
geTestCase{int64(kTwoTo25 + 1), true, false, ""},
geTestCase{int64(kTwoTo25 + 2), true, false, ""},
// Unsigned integers.
geTestCase{uint(0), false, false, ""},
geTestCase{uint(kTwoTo25 + 0), false, false, ""},
geTestCase{uint(kTwoTo25 + 1), true, false, ""},
geTestCase{uint(kTwoTo25 + 2), true, false, ""},
geTestCase{uint8(0), false, false, ""},
geTestCase{uint8(255), false, false, ""},
geTestCase{uint16(0), false, false, ""},
geTestCase{uint16(65535), false, false, ""},
geTestCase{uint32(0), false, false, ""},
geTestCase{uint32(kTwoTo25 + 0), false, false, ""},
geTestCase{uint32(kTwoTo25 + 1), true, false, ""},
geTestCase{uint32(kTwoTo25 + 2), true, false, ""},
geTestCase{uint64(0), false, false, ""},
geTestCase{uint64(kTwoTo25 + 0), false, false, ""},
geTestCase{uint64(kTwoTo25 + 1), true, false, ""},
geTestCase{uint64(kTwoTo25 + 2), true, false, ""},
geTestCase{uintptr(0), false, false, ""},
geTestCase{uintptr(kTwoTo25 + 0), false, false, ""},
geTestCase{uintptr(kTwoTo25 + 1), true, false, ""},
geTestCase{uintptr(kTwoTo25 + 2), true, false, ""},
// Floating point.
geTestCase{float32(-1), false, false, ""},
geTestCase{float32(kTwoTo25 - 2), false, false, ""},
geTestCase{float32(kTwoTo25 - 1), true, false, ""},
geTestCase{float32(kTwoTo25 + 0), true, false, ""},
geTestCase{float32(kTwoTo25 + 1), true, false, ""},
geTestCase{float32(kTwoTo25 + 2), true, false, ""},
geTestCase{float32(kTwoTo25 + 3), true, false, ""},
geTestCase{float64(-1), false, false, ""},
geTestCase{float64(kTwoTo25 - 2), false, false, ""},
geTestCase{float64(kTwoTo25 - 1), false, false, ""},
geTestCase{float64(kTwoTo25 + 0), false, false, ""},
geTestCase{float64(kTwoTo25 + 1), true, false, ""},
geTestCase{float64(kTwoTo25 + 2), true, false, ""},
geTestCase{float64(kTwoTo25 + 3), true, false, ""},
}
t.checkTestCases(matcher, cases)
}
func (t *GreaterOrEqualTest) Int64NotExactlyRepresentableByDoublePrecision() {
// Double-precision floats don't have enough bits to represent the integers
// near this one distinctly, so [2^54-1, 2^54+2] all receive the same value
// and should be treated as equivalent when floats are in the mix.
const kTwoTo54 = 1 << 54
matcher := GreaterOrEqual(int64(kTwoTo54 + 1))
desc := matcher.Description()
expectedDesc := "greater than or equal to 18014398509481985"
ExpectThat(desc, Equals(expectedDesc))
cases := []geTestCase{
// Signed integers.
geTestCase{-1, false, false, ""},
geTestCase{1 << 30, false, false, ""},
geTestCase{int(-1), false, false, ""},
geTestCase{int(math.MaxInt32), false, false, ""},
geTestCase{int8(-1), false, false, ""},
geTestCase{int8(127), false, false, ""},
geTestCase{int16(-1), false, false, ""},
geTestCase{int16(0), false, false, ""},
geTestCase{int16(32767), false, false, ""},
geTestCase{int32(-1), false, false, ""},
geTestCase{int32(math.MaxInt32), false, false, ""},
geTestCase{int64(-1), false, false, ""},
geTestCase{int64(kTwoTo54 - 1), false, false, ""},
geTestCase{int64(kTwoTo54 + 0), false, false, ""},
geTestCase{int64(kTwoTo54 + 1), true, false, ""},
geTestCase{int64(kTwoTo54 + 2), true, false, ""},
// Unsigned integers.
geTestCase{uint(0), false, false, ""},
geTestCase{uint(math.MaxUint32), false, false, ""},
geTestCase{uint8(0), false, false, ""},
geTestCase{uint8(255), false, false, ""},
geTestCase{uint16(0), false, false, ""},
geTestCase{uint16(65535), false, false, ""},
geTestCase{uint32(0), false, false, ""},
geTestCase{uint32(math.MaxUint32), false, false, ""},
geTestCase{uint64(0), false, false, ""},
geTestCase{uint64(kTwoTo54 - 1), false, false, ""},
geTestCase{uint64(kTwoTo54 + 0), false, false, ""},
geTestCase{uint64(kTwoTo54 + 1), true, false, ""},
geTestCase{uint64(kTwoTo54 + 2), true, false, ""},
geTestCase{uintptr(0), false, false, ""},
geTestCase{uintptr(kTwoTo54 - 1), false, false, ""},
geTestCase{uintptr(kTwoTo54 + 0), false, false, ""},
geTestCase{uintptr(kTwoTo54 + 1), true, false, ""},
geTestCase{uintptr(kTwoTo54 + 2), true, false, ""},
// Floating point.
geTestCase{float64(-1), false, false, ""},
geTestCase{float64(kTwoTo54 - 2), false, false, ""},
geTestCase{float64(kTwoTo54 - 1), true, false, ""},
geTestCase{float64(kTwoTo54 + 0), true, false, ""},
geTestCase{float64(kTwoTo54 + 1), true, false, ""},
geTestCase{float64(kTwoTo54 + 2), true, false, ""},
geTestCase{float64(kTwoTo54 + 3), true, false, ""},
}
t.checkTestCases(matcher, cases)
}
func (t *GreaterOrEqualTest) Uint64NotExactlyRepresentableBySinglePrecision() {
// Single-precision floats don't have enough bits to represent the integers
// near this one distinctly, so [2^25-1, 2^25+2] all receive the same value
// and should be treated as equivalent when floats are in the mix.
const kTwoTo25 = 1 << 25
matcher := GreaterOrEqual(uint64(kTwoTo25 + 1))
desc := matcher.Description()
expectedDesc := "greater than or equal to 33554433"
ExpectThat(desc, Equals(expectedDesc))
cases := []geTestCase{
// Signed integers.
geTestCase{-1, false, false, ""},
geTestCase{kTwoTo25 + 0, false, false, ""},
geTestCase{kTwoTo25 + 1, true, false, ""},
geTestCase{kTwoTo25 + 2, true, false, ""},
geTestCase{int(-1), false, false, ""},
geTestCase{int(kTwoTo25 + 0), false, false, ""},
geTestCase{int(kTwoTo25 + 1), true, false, ""},
geTestCase{int(kTwoTo25 + 2), true, false, ""},
geTestCase{int8(-1), false, false, ""},
geTestCase{int8(127), false, false, ""},
geTestCase{int16(-1), false, false, ""},
geTestCase{int16(0), false, false, ""},
geTestCase{int16(32767), false, false, ""},
geTestCase{int32(-1), false, false, ""},
geTestCase{int32(kTwoTo25 + 0), false, false, ""},
geTestCase{int32(kTwoTo25 + 1), true, false, ""},
geTestCase{int32(kTwoTo25 + 2), true, false, ""},
geTestCase{int64(-1), false, false, ""},
geTestCase{int64(kTwoTo25 + 0), false, false, ""},
geTestCase{int64(kTwoTo25 + 1), true, false, ""},
geTestCase{int64(kTwoTo25 + 2), true, false, ""},
// Unsigned integers.
geTestCase{uint(0), false, false, ""},
geTestCase{uint(kTwoTo25 + 0), false, false, ""},
geTestCase{uint(kTwoTo25 + 1), true, false, ""},
geTestCase{uint(kTwoTo25 + 2), true, false, ""},
geTestCase{uint8(0), false, false, ""},
geTestCase{uint8(255), false, false, ""},
geTestCase{uint16(0), false, false, ""},
geTestCase{uint16(65535), false, false, ""},
geTestCase{uint32(0), false, false, ""},
geTestCase{uint32(kTwoTo25 + 0), false, false, ""},
geTestCase{uint32(kTwoTo25 + 1), true, false, ""},
geTestCase{uint32(kTwoTo25 + 2), true, false, ""},
geTestCase{uint64(0), false, false, ""},
geTestCase{uint64(kTwoTo25 + 0), false, false, ""},
geTestCase{uint64(kTwoTo25 + 1), true, false, ""},
geTestCase{uint64(kTwoTo25 + 2), true, false, ""},
geTestCase{uintptr(0), false, false, ""},
geTestCase{uintptr(kTwoTo25 + 0), false, false, ""},
geTestCase{uintptr(kTwoTo25 + 1), true, false, ""},
geTestCase{uintptr(kTwoTo25 + 2), true, false, ""},
// Floating point.
geTestCase{float32(-1), false, false, ""},
geTestCase{float32(kTwoTo25 - 2), false, false, ""},
geTestCase{float32(kTwoTo25 - 1), true, false, ""},
geTestCase{float32(kTwoTo25 + 0), true, false, ""},
geTestCase{float32(kTwoTo25 + 1), true, false, ""},
geTestCase{float32(kTwoTo25 + 2), true, false, ""},
geTestCase{float32(kTwoTo25 + 3), true, false, ""},
geTestCase{float64(-1), false, false, ""},
geTestCase{float64(kTwoTo25 - 2), false, false, ""},
geTestCase{float64(kTwoTo25 - 1), false, false, ""},
geTestCase{float64(kTwoTo25 + 0), false, false, ""},
geTestCase{float64(kTwoTo25 + 1), true, false, ""},
geTestCase{float64(kTwoTo25 + 2), true, false, ""},
geTestCase{float64(kTwoTo25 + 3), true, false, ""},
}
t.checkTestCases(matcher, cases)
}
func (t *GreaterOrEqualTest) Uint64NotExactlyRepresentableByDoublePrecision() {
// Double-precision floats don't have enough bits to represent the integers
// near this one distinctly, so [2^54-1, 2^54+2] all receive the same value
// and should be treated as equivalent when floats are in the mix.
const kTwoTo54 = 1 << 54
matcher := GreaterOrEqual(uint64(kTwoTo54 + 1))
desc := matcher.Description()
expectedDesc := "greater than or equal to 18014398509481985"
ExpectThat(desc, Equals(expectedDesc))
cases := []geTestCase{
// Signed integers.
geTestCase{-1, false, false, ""},
geTestCase{1 << 30, false, false, ""},
geTestCase{int(-1), false, false, ""},
geTestCase{int(math.MaxInt32), false, false, ""},
geTestCase{int8(-1), false, false, ""},
geTestCase{int8(127), false, false, ""},
geTestCase{int16(-1), false, false, ""},
geTestCase{int16(0), false, false, ""},
geTestCase{int16(32767), false, false, ""},
geTestCase{int32(-1), false, false, ""},
geTestCase{int32(math.MaxInt32), false, false, ""},
geTestCase{int64(-1), false, false, ""},
geTestCase{int64(kTwoTo54 - 1), false, false, ""},
geTestCase{int64(kTwoTo54 + 0), false, false, ""},
geTestCase{int64(kTwoTo54 + 1), true, false, ""},
geTestCase{int64(kTwoTo54 + 2), true, false, ""},
// Unsigned integers.
geTestCase{uint(0), false, false, ""},
geTestCase{uint(math.MaxUint32), false, false, ""},
geTestCase{uint8(0), false, false, ""},
geTestCase{uint8(255), false, false, ""},
geTestCase{uint16(0), false, false, ""},
geTestCase{uint16(65535), false, false, ""},
geTestCase{uint32(0), false, false, ""},
geTestCase{uint32(math.MaxUint32), false, false, ""},
geTestCase{uint64(0), false, false, ""},
geTestCase{uint64(kTwoTo54 - 1), false, false, ""},
geTestCase{uint64(kTwoTo54 + 0), false, false, ""},
geTestCase{uint64(kTwoTo54 + 1), true, false, ""},
geTestCase{uint64(kTwoTo54 + 2), true, false, ""},
geTestCase{uintptr(0), false, false, ""},
geTestCase{uintptr(kTwoTo54 - 1), false, false, ""},
geTestCase{uintptr(kTwoTo54 + 0), false, false, ""},
geTestCase{uintptr(kTwoTo54 + 1), true, false, ""},
geTestCase{uintptr(kTwoTo54 + 2), true, false, ""},
// Floating point.
geTestCase{float64(-1), false, false, ""},
geTestCase{float64(kTwoTo54 - 2), false, false, ""},
geTestCase{float64(kTwoTo54 - 1), true, false, ""},
geTestCase{float64(kTwoTo54 + 0), true, false, ""},
geTestCase{float64(kTwoTo54 + 1), true, false, ""},
geTestCase{float64(kTwoTo54 + 2), true, false, ""},
geTestCase{float64(kTwoTo54 + 3), true, false, ""},
}
t.checkTestCases(matcher, cases)
}
func (t *GreaterOrEqualTest) Float32AboveExactIntegerRange() {
// Single-precision floats don't have enough bits to represent the integers
// near this one distinctly, so [2^25-1, 2^25+2] all receive the same value
// and should be treated as equivalent when floats are in the mix.
const kTwoTo25 = 1 << 25
matcher := GreaterOrEqual(float32(kTwoTo25 + 1))
desc := matcher.Description()
expectedDesc := "greater than or equal to 3.3554432e+07"
ExpectThat(desc, Equals(expectedDesc))
cases := []geTestCase{
// Signed integers.
geTestCase{int64(-1), false, false, ""},
geTestCase{int64(kTwoTo25 - 2), false, false, ""},
geTestCase{int64(kTwoTo25 - 1), true, false, ""},
geTestCase{int64(kTwoTo25 + 0), true, false, ""},
geTestCase{int64(kTwoTo25 + 1), true, false, ""},
geTestCase{int64(kTwoTo25 + 2), true, false, ""},
geTestCase{int64(kTwoTo25 + 3), true, false, ""},
// Unsigned integers.
geTestCase{uint64(0), false, false, ""},
geTestCase{uint64(kTwoTo25 - 2), false, false, ""},
geTestCase{uint64(kTwoTo25 - 1), true, false, ""},
geTestCase{uint64(kTwoTo25 + 0), true, false, ""},
geTestCase{uint64(kTwoTo25 + 1), true, false, ""},
geTestCase{uint64(kTwoTo25 + 2), true, false, ""},
geTestCase{uint64(kTwoTo25 + 3), true, false, ""},
// Floating point.
geTestCase{float32(-1), false, false, ""},
geTestCase{float32(kTwoTo25 - 2), false, false, ""},
geTestCase{float32(kTwoTo25 - 1), true, false, ""},
geTestCase{float32(kTwoTo25 + 0), true, false, ""},
geTestCase{float32(kTwoTo25 + 1), true, false, ""},
geTestCase{float32(kTwoTo25 + 2), true, false, ""},
geTestCase{float32(kTwoTo25 + 3), true, false, ""},
geTestCase{float64(-1), false, false, ""},
geTestCase{float64(kTwoTo25 - 2), false, false, ""},
geTestCase{float64(kTwoTo25 - 1), true, false, ""},
geTestCase{float64(kTwoTo25 + 0), true, false, ""},
geTestCase{float64(kTwoTo25 + 1), true, false, ""},
geTestCase{float64(kTwoTo25 + 2), true, false, ""},
geTestCase{float64(kTwoTo25 + 3), true, false, ""},
}
t.checkTestCases(matcher, cases)
}