/
object_test.go
74 lines (61 loc) · 1.83 KB
/
object_test.go
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package jsonmerge
import (
"bytes"
"io"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestObjectMerger_singleEmptyObject(t *testing.T) {
w := &bytes.Buffer{}
merger := NewObjectMerger(w)
r1 := bytes.NewBufferString(`{}`)
p1 := merger.NewPage(r1, true)
n, err := io.Copy(w, p1)
require.NoError(t, err)
assert.Equal(t, int64(0), n)
assert.NoError(t, p1.Close())
assert.Equal(t, ``, w.String())
require.NoError(t, merger.Close())
assert.JSONEq(t, `{}`, w.String())
}
func TestObjectMerger_finalEmptyObject(t *testing.T) {
w := &bytes.Buffer{}
merger := NewObjectMerger(w)
r1 := bytes.NewBufferString(`{"a":1,"b":2}`)
p1 := merger.NewPage(r1, false)
n, err := io.Copy(w, p1)
require.NoError(t, err)
assert.Equal(t, int64(0), n)
assert.NoError(t, p1.Close())
assert.Equal(t, ``, w.String())
r2 := bytes.NewBufferString(`{}`)
p2 := merger.NewPage(r2, true)
n, err = io.Copy(w, p2)
require.NoError(t, err)
assert.Equal(t, int64(0), n)
assert.NoError(t, p2.Close())
assert.Equal(t, ``, w.String())
require.NoError(t, merger.Close())
assert.JSONEq(t, `{"a":1,"b":2}`, w.String())
}
func TestObjectMerger_multiplePages(t *testing.T) {
w := &bytes.Buffer{}
merger := NewObjectMerger(w)
r1 := bytes.NewBufferString(`{"a":1,"b":2,"arr":["a","b"]}`)
p1 := merger.NewPage(r1, false)
n, err := io.Copy(w, p1)
require.NoError(t, err)
assert.Equal(t, int64(0), n)
assert.NoError(t, p1.Close())
assert.Equal(t, ``, w.String())
r2 := bytes.NewBufferString(`{"b":3,"c":{"d":4},"arr":["c","d"]}`)
p2 := merger.NewPage(r2, true)
n, err = io.Copy(w, p2)
require.NoError(t, err)
assert.Equal(t, int64(0), n)
assert.NoError(t, p2.Close())
assert.Equal(t, ``, w.String())
require.NoError(t, merger.Close())
assert.JSONEq(t, `{"a":1,"b":3,"c":{"d":4},"arr":["a","b","c","d"]}`, w.String())
}