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Diffstat (limited to 'vendor/github.com/tdewolff/parse/buffer/writer_test.go')
-rw-r--r--vendor/github.com/tdewolff/parse/buffer/writer_test.go46
1 files changed, 46 insertions, 0 deletions
diff --git a/vendor/github.com/tdewolff/parse/buffer/writer_test.go b/vendor/github.com/tdewolff/parse/buffer/writer_test.go
new file mode 100644
index 0000000..f56f5f7
--- /dev/null
+++ b/vendor/github.com/tdewolff/parse/buffer/writer_test.go
@@ -0,0 +1,46 @@
+package buffer // import "github.com/tdewolff/parse/buffer"
+
+import (
+ "fmt"
+ "testing"
+
+ "github.com/tdewolff/test"
+)
+
+func TestWriter(t *testing.T) {
+ w := NewWriter(make([]byte, 0, 3))
+
+ test.That(t, w.Len() == 0, "buffer must initially have zero length")
+
+ n, _ := w.Write([]byte("abc"))
+ test.That(t, n == 3, "first write must write 3 characters")
+ test.Bytes(t, w.Bytes(), []byte("abc"), "first write must match 'abc'")
+ test.That(t, w.Len() == 3, "buffer must have length 3 after first write")
+
+ n, _ = w.Write([]byte("def"))
+ test.That(t, n == 3, "second write must write 3 characters")
+ test.Bytes(t, w.Bytes(), []byte("abcdef"), "second write must match 'abcdef'")
+
+ w.Reset()
+ test.Bytes(t, w.Bytes(), []byte(""), "reset must match ''")
+
+ n, _ = w.Write([]byte("ghijkl"))
+ test.That(t, n == 6, "third write must write 6 characters")
+ test.Bytes(t, w.Bytes(), []byte("ghijkl"), "third write must match 'ghijkl'")
+}
+
+func ExampleNewWriter() {
+ w := NewWriter(make([]byte, 0, 11)) // initial buffer length is 11
+ w.Write([]byte("Lorem ipsum"))
+ fmt.Println(string(w.Bytes()))
+ // Output: Lorem ipsum
+}
+
+func ExampleWriter_Reset() {
+ w := NewWriter(make([]byte, 0, 11)) // initial buffer length is 10
+ w.Write([]byte("garbage that will be overwritten")) // does reallocation
+ w.Reset()
+ w.Write([]byte("Lorem ipsum"))
+ fmt.Println(string(w.Bytes()))
+ // Output: Lorem ipsum
+}