1 files changed, 80 insertions, 0 deletions
diff --git a/streamingvisitors/src/tests/charbuffer/charbuffer.cpp b/streamingvisitors/src/tests/charbuffer/charbuffer.cpp
new file mode 100644
index 00000000000..736d35459cb
--- /dev/null
+++ b/streamingvisitors/src/tests/charbuffer/charbuffer.cpp
@@ -0,0 +1,80 @@
+// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+#include <vespa/vespalib/testkit/testapp.h>
+
+#include <vespa/vsm/common/charbuffer.h>
+
+namespace vsm {
+
+class CharBufferTest : public vespalib::TestApp
+{
+private:
+    void test();
+public:
+    int Main() override;
+};
+
+void
+CharBufferTest::test()
+{
+    { // empty
+        CharBuffer buf;
+        EXPECT_EQUAL(buf.getLength(), 0u);
+        EXPECT_EQUAL(buf.getPos(), 0u);
+        EXPECT_EQUAL(buf.getRemaining(), 0u);
+    }
+    { // explicit length
+        CharBuffer buf(8);
+        EXPECT_EQUAL(buf.getLength(), 8u);
+        EXPECT_EQUAL(buf.getPos(), 0u);
+        EXPECT_EQUAL(buf.getRemaining(), 8u);
+    }
+    { // resize
+        CharBuffer buf(8);
+        EXPECT_EQUAL(buf.getLength(), 8u);
+        buf.resize(16);
+        EXPECT_EQUAL(buf.getLength(), 16u);
+        buf.resize(8);
+        EXPECT_EQUAL(buf.getLength(), 16u);
+    }
+    { // put with triggered resize
+        CharBuffer buf(8);
+        buf.put("123456", 6);
+        EXPECT_EQUAL(buf.getLength(), 8u);
+        EXPECT_EQUAL(buf.getPos(), 6u);
+        EXPECT_EQUAL(buf.getRemaining(), 2u);
+        EXPECT_EQUAL(std::string(buf.getBuffer(), buf.getPos()), "123456");
+        buf.put("789", 3);
+        EXPECT_EQUAL(buf.getLength(), 12u);
+        EXPECT_EQUAL(buf.getPos(), 9u);
+        EXPECT_EQUAL(buf.getRemaining(), 3u);
+        EXPECT_EQUAL(std::string(buf.getBuffer(), buf.getPos()), "123456789");
+        buf.put('a');
+        EXPECT_EQUAL(buf.getLength(), 12u);
+        EXPECT_EQUAL(buf.getPos(), 10u);
+        EXPECT_EQUAL(buf.getRemaining(), 2u);
+        EXPECT_EQUAL(std::string(buf.getBuffer(), buf.getPos()), "123456789a");
+        buf.reset();
+        EXPECT_EQUAL(buf.getLength(), 12u);
+        EXPECT_EQUAL(buf.getPos(), 0u);
+        EXPECT_EQUAL(buf.getRemaining(), 12u);
+        buf.put("bcd", 3);
+        EXPECT_EQUAL(buf.getLength(), 12u);
+        EXPECT_EQUAL(buf.getPos(), 3u);
+        EXPECT_EQUAL(buf.getRemaining(), 9u);
+        EXPECT_EQUAL(std::string(buf.getBuffer(), buf.getPos()), "bcd");
+    }
+}
+
+int
+CharBufferTest::Main()
+{
+    TEST_INIT("charbuffer_test");
+
+    test();
+
+    TEST_DONE();
+}
+
+}
+
+TEST_APPHOOK(vsm::CharBufferTest);