1 files changed, 61 insertions, 0 deletions
diff --git a/impl_core/src/test/java/io/opencensus/implcore/trace/TracerImplTest.java b/impl_core/src/test/java/io/opencensus/implcore/trace/TracerImplTest.java
new file mode 100644
index 00000000..d10be6a2
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+++ b/impl_core/src/test/java/io/opencensus/implcore/trace/TracerImplTest.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2017, OpenCensus Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.opencensus.implcore.trace;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import io.opencensus.implcore.trace.RecordEventsSpanImpl.StartEndHandler;
+import io.opencensus.implcore.trace.internal.RandomHandler.SecureRandomHandler;
+import io.opencensus.testing.common.TestClock;
+import io.opencensus.trace.BlankSpan;
+import io.opencensus.trace.SpanBuilder;
+import io.opencensus.trace.SpanContext;
+import io.opencensus.trace.config.TraceConfig;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+/** Unit tests for {@link TracerImpl}. */
+@RunWith(JUnit4.class)
+public class TracerImplTest {
+  private static final String SPAN_NAME = "MySpanName";
+  @Mock private StartEndHandler startEndHandler;
+  @Mock private TraceConfig traceConfig;
+  private TracerImpl tracer;
+
+  @Before
+  public void setUp() {
+    MockitoAnnotations.initMocks(this);
+    tracer =
+        new TracerImpl(new SecureRandomHandler(), startEndHandler, TestClock.create(), traceConfig);
+  }
+
+  @Test
+  public void createSpanBuilder() {
+    SpanBuilder spanBuilder = tracer.spanBuilderWithExplicitParent(SPAN_NAME, BlankSpan.INSTANCE);
+    assertThat(spanBuilder).isInstanceOf(SpanBuilderImpl.class);
+  }
+
+  @Test
+  public void createSpanBuilderWithRemoteParet() {
+    SpanBuilder spanBuilder = tracer.spanBuilderWithRemoteParent(SPAN_NAME, SpanContext.INVALID);
+    assertThat(spanBuilder).isInstanceOf(SpanBuilderImpl.class);
+  }
+}