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instamock_test.go
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/
instamock_test.go
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package main
import (
"fmt"
"strings"
"testing"
)
func TestInstamock(t *testing.T) {
for i, c := range []struct {
src string
expected string
}{
{
src: `
type MyInterface interface {
foo(ext.Type) (int, MyType)
bar()
nene(a, b int, dame Toma, mas ...interface{})
}
`,
expected: `
type MyInterfaceMock struct {
fooFunc func(ext.Type) (int, mypkg.MyType)
barFunc func()
neneFunc func(a, b int, dame mypkg.Toma, mas ...interface{})
}
func (r MyInterfaceMock) foo(a0 ext.Type) (int, mypkg.MyType) {
return r.fooFunc(a0)
}
func (r MyInterfaceMock) bar() {
r.barFunc()
}
func (r MyInterfaceMock) nene(a, b int, dame mypkg.Toma, mas ...interface{}) {
r.neneFunc(a, b, dame, mas...)
}
`,
},
{
src: `
type embedder interface {
MyInterface
Qux()
}
`,
expected: `
type embedderMock struct {
QuxFunc func()
}
func (r embedderMock) Qux() {
r.QuxFunc()
}
`,
},
{
src: `
type coso interface {
single(ext.Type) (int, MyType)
}
`,
expected: `
type cosoFunc func(ext.Type) (int, mypkg.MyType)
func (r cosoFunc) single(a0 ext.Type) (int, mypkg.MyType) {
return r(a0)
}
type cosoMock struct {
singleFunc func(a0 ext.Type) (int, mypkg.MyType)
}
func (r cosoMock) single(a0 ext.Type) (int, mypkg.MyType) {
return r.singleFunc(a0)
}
`,
},
{
src: `
type deepNames interface {
foo(*MyType, []MyType, []*[123]MyType, not.MyType)
bar(arg struct{
f func([]MyType) []MyType
})
}
`,
expected: `
type deepNamesMock struct {
fooFunc func(*mypkg.MyType, []mypkg.MyType, []*[123]mypkg.MyType, not.MyType)
barFunc func(arg struct {
f func([]mypkg.MyType) []mypkg.MyType
})
}
func (r deepNamesMock) foo(a0 *mypkg.MyType, a1 []mypkg.MyType, a2 []*[123]mypkg.MyType, a3 not.MyType) {
r.fooFunc(a0, a1, a2, a3)
}
func (r deepNamesMock) bar(arg struct { f func([]mypkg.MyType) []mypkg.MyType}) {
r.barFunc(arg)
}
`,
},
} {
c := c
t.Run(fmt.Sprint(i), func(t *testing.T) {
t.Parallel()
equal := func(expected, got string) {
t.Helper()
replace := strings.NewReplacer(
"\n", "",
"\t", "",
" ", "",
).Replace
if replace(expected) != replace(got) {
t.Errorf("expected:\n\n%s\ngot:\n\n%s\n%[1]q\n%[2]q", replace(expected), replace(got))
}
}
got := translate(c.src, "mypkg")
equal(c.expected, got)
// Now without a package qualifier.
expected := strings.ReplaceAll(c.expected, "mypkg.", "")
got = translate(c.src, "")
equal(expected, got)
})
}
}