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// Copyright 2017 Huan Du. All rights reserved.
// Licensed under the MIT license that can be found in the LICENSE file.
package assert
import (
"errors"
"os"
"strings"
"testing"
)
// TestMain hacks the testing process and runs cases only if flag -test.run is specified.
// Due to the nature of this package, all "successful" cases will always fail.
// With this hack, we can run selected case manually without breaking travis-ci system.
func TestMain(m *testing.M) {
for _, arg := range os.Args[1:] {
if strings.HasPrefix(arg, "-test.run") {
os.Exit(m.Run())
return
}
}
}
func TestAssertCompareExpr(t *testing.T) {
a, b := 1, 2
Assert(t, a > b)
}
func TestAssertIdent(t *testing.T) {
a := 0
Assert(t, a)
}
func TestAssertNilErrorFunctionCall(t *testing.T) {
a := New(t)
f := func(string, int) (float32, bool, error) {
return 12, true, nil
}
a.NilError(f("should pass", 0))
f = func(string, int) (float32, bool, error) {
return 0, false, errors.New("expected")
}
a.NilError(f("should fail", 42))
}
func TestAssertNonNilErrorFunctionCall(t *testing.T) {
a := New(t)
f := func(string, int) (float32, bool, error) {
return 12, true, errors.New("should pass")
}
a.NonNilError(f("should pass", 0))
f = func(string, int) (float32, bool, error) {
return 0, false, nil
}
a.NonNilError(f("should fail", 42))
}
func TestAssertEquality(t *testing.T) {
Equal(t, map[string]int{
"foo": 1,
"bar": -2,
}, map[string]int{
"bar": -2,
"foo": 1,
})
Equal(t, map[string]int{
"foo": 1,
"bar": -2,
}, map[string]int{
"bar": -2,
"foo": 10000,
})
}
func TestAssertEqualityTypeMismatch(t *testing.T) {
v1 := struct {
Foo string
Bar int
}{"should pass", 1}
v2 := struct {
Foo string
Bar int
}{"should pass", 1}
Equal(t, v1, v2)
v3 := []int{1, 2, 3}
v4 := []int64{1, 2, 3}
Equal(t, v3, v4)
}
func TestAssertEqualityWithAssertion(t *testing.T) {
a := New(t)
a.Equal(map[string]int{
"foo": 1,
"bar": -2,
}, map[string]int{
"bar": -2,
"foo": 1,
})
a.Equal(map[string]int{
"foo": 1,
"bar": -2,
}, map[string]int{
"bar": -2,
"foo": 10000,
})
}
func TestAssertEqualityTypeMismatchWithAssertion(t *testing.T) {
a := New(t)
v1 := struct {
Foo string
Bar int
}{"should pass", 1}
v2 := struct {
Foo string
Bar int
}{"should pass", 1}
a.Equal(v1, v2)
v3 := []int{1, 2, 3}
v4 := []int64{1, 2, 3}
a.Equal(v3, v4)
}
func TestAssertNotEqual(t *testing.T) {
v1 := struct {
Foo string
Bar int
}{"should pass", 1}
v2 := struct {
Bar int
Foo string
}{1, "should pass"}
NotEqual(t, v1, v2)
v3 := []int{1, 2, 3}
v4 := []int{1, 2, 3}
NotEqual(t, v3, v4)
}
func TestAssertNotEqualWithAssertion(t *testing.T) {
a := New(t)
v1 := struct {
Foo string
Bar int
}{"should pass", 1}
v2 := struct {
Bar int
Foo string
}{1, "should pass"}
a.NotEqual(v1, v2)
v3 := []int{1, 2, 3}
v4 := []int{1, 2, 3}
a.NotEqual(v3, v4)
}
func TestUse(t *testing.T) {
a := New(t)
v1 := 123
v2 := []string{"foo", "bar"}
v3 := v2[0]
a.Use(v1, &v2) // v2 is used but v1 is not used due to missing `&`.
// Should pass.
a.Assert(v1 == 123 && v3 == "foo")
// Should fail.
v1 = 345
v3 = v2[1]
a.Assert(v1 > 123 && v3 != "bar")
}
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