Files
skopeo/signature/json_test.go
Miloslav Trmač c8d8608b57 Move the x() helper from signature_test.go to json_test.go
It will be used in other tests as well.
2016-05-16 14:57:05 +02:00

77 lines
2.0 KiB
Go

package signature
import (
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
type mSI map[string]interface{} // To minimize typing the long name
// A short-hand way to get a JSON object field value or panic. No error handling done, we know
// what we are working with, a panic in a test is good enough, and fitting test cases on a single line
// is a priority.
func x(m mSI, fields ...string) mSI {
for _, field := range fields {
// Not .(mSI) because type assertion of an unnamed type to a named type always fails (the types
// are not "identical"), but the assignment is fine because they are "assignable".
m = m[field].(map[string]interface{})
}
return m
}
func TestValidateExactMapKeys(t *testing.T) {
// Empty map and keys
err := validateExactMapKeys(mSI{})
assert.NoError(t, err)
// Success
err = validateExactMapKeys(mSI{"a": nil, "b": 1}, "b", "a")
assert.NoError(t, err)
// Extra map keys
err = validateExactMapKeys(mSI{"a": nil, "b": 1}, "a")
assert.Error(t, err)
// Extra expected keys
err = validateExactMapKeys(mSI{"a": 1}, "b", "a")
assert.Error(t, err)
// Unexpected key values
err = validateExactMapKeys(mSI{"a": 1}, "b")
assert.Error(t, err)
}
func TestMapField(t *testing.T) {
// Field not found
_, err := mapField(mSI{"a": mSI{}}, "b")
assert.Error(t, err)
// Field has a wrong type
_, err = mapField(mSI{"a": 1}, "a")
assert.Error(t, err)
// Success
// FIXME? We can't use mSI as the type of child, that type apparently can't be converted to the raw map type.
child := map[string]interface{}{"b": mSI{}}
m, err := mapField(mSI{"a": child, "b": nil}, "a")
require.NoError(t, err)
assert.Equal(t, child, m)
}
func TestStringField(t *testing.T) {
// Field not found
_, err := stringField(mSI{"a": "x"}, "b")
assert.Error(t, err)
// Field has a wrong type
_, err = stringField(mSI{"a": 1}, "a")
assert.Error(t, err)
// Success
s, err := stringField(mSI{"a": "x", "b": nil}, "a")
require.NoError(t, err)
assert.Equal(t, "x", s)
}