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|
package testing
import (
"bytes"
"io"
"io/ioutil"
"strings"
"testing"
)
func TestCompareStructEqual(t *testing.T) {
cases := map[string]struct {
A, B interface{}
ExpectErr string
}{
"simple match": {
A: struct {
Foo string
Bar int
}{
Foo: "abc",
Bar: 123,
},
B: struct {
Foo string
Bar int
}{
Foo: "abc",
Bar: 123,
},
},
"simple diff": {
A: struct {
Foo string
Bar int
}{
Foo: "abc",
Bar: 123,
},
B: struct {
Foo string
Bar int
}{
Foo: "abc",
Bar: 456,
},
ExpectErr: "values do not match",
},
"reader match": {
A: struct {
Foo io.Reader
Bar int
}{
Foo: bytes.NewBuffer([]byte("abc123")),
Bar: 123,
},
B: struct {
Foo io.Reader
Bar int
}{
Foo: ioutil.NopCloser(strings.NewReader("abc123")),
Bar: 123,
},
},
"reader diff": {
A: struct {
Foo io.Reader
Bar int
}{
Foo: bytes.NewBuffer([]byte("abc123")),
Bar: 123,
},
B: struct {
Foo io.Reader
Bar int
}{
Foo: ioutil.NopCloser(strings.NewReader("123abc")),
Bar: 123,
},
ExpectErr: "bytes do not match",
},
}
for name, c := range cases {
t.Run(name, func(t *testing.T) {
err := CompareValues(c.A, c.B)
if len(c.ExpectErr) != 0 {
if err == nil {
t.Fatalf("expect error, got none")
}
if e, a := c.ExpectErr, err.Error(); !strings.Contains(a, e) {
t.Fatalf("expect error to contain %v, got %v", e, a)
}
return
}
if err != nil {
t.Fatalf("expect no error, got %v", err)
}
})
}
}
|
