Add canned VAST/VMAP ad responses for testing

PiperOrigin-RevId: 303286872

testdata/src/test/assets/ad-responses/midroll.xml

+<vmap:VMAP xmlns:vmap="http://www.iab.net/videosuite/vmap" version="1.0">
+  <vmap:AdBreak timeOffset="start" breakType="linear" breakId="preroll">
+    <vmap:AdSource id="preroll-ad-1" allowMultipleAds="false" followRedirects="true">
+      <vmap:VASTAdData>
+        <VAST xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="vast.xsd" version="3.0">
+          <Ad id="709684336">
+            <InLine>
+              <AdSystem>GDFP</AdSystem>
+              <AdTitle>Preroll</AdTitle>
+              <Description>
+                <![CDATA[ Preroll ad ]]>
+              </Description>
+              <Creatives>
+                <Creative id="57861016576" sequence="1">
+                  <Linear>
+                    <Duration>00:00:05</Duration>
+                    <MediaFiles>
+                      <MediaFile id="GDFP" delivery="progressive" width="640" height="360" type="video/mp4" bitrate="450" scalable="true" maintainAspectRatio="true">
+                        <![CDATA[
+file:///android_asset/mp4/preroll-5s.mp4
+]]>
+                      </MediaFile>
+                    </MediaFiles>
+                  </Linear>
+                </Creative>
+              </Creatives>
+            </InLine>
+          </Ad>
+        </VAST>
+      </vmap:VASTAdData>
+    </vmap:AdSource>
+  </vmap:AdBreak>
+  <vmap:AdBreak timeOffset="00:00:06.000" breakType="linear" breakId="midroll-1">
+    <vmap:AdSource id="midroll-1-ad-1" allowMultipleAds="false" followRedirects="true">
+      <vmap:VASTAdData>
+        <VAST xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="vast.xsd" version="3.0">
+          <Ad id="710742616">
+            <InLine>
+              <AdSystem>GDFP</AdSystem>
+              <AdTitle>Midroll</AdTitle>
+              <Description>
+                <![CDATA[ Midroll ad ]]>
+              </Description>
+              <Creatives>
+                <Creative id="57861202456" sequence="1">
+                  <Linear>
+                    <Duration>00:00:05</Duration>
+                    <MediaFiles>
+                      <MediaFile id="GDFP" delivery="progressive" width="640" height="360" type="video/mp4" bitrate="450" scalable="true" maintainAspectRatio="true">
+                        <![CDATA[
+file:///android_asset/mp4/midroll-5s.mp4
+]]>
+                      </MediaFile>
+                    </MediaFiles>
+                  </Linear>
+                </Creative>
+              </Creatives>
+            </InLine>
+          </Ad>
+        </VAST>
+      </vmap:VASTAdData>
+    </vmap:AdSource>
+  </vmap:AdBreak>
+  <vmap:AdBreak timeOffset="end" breakType="linear" breakId="postroll">
+    <vmap:AdSource id="postroll-ad-1" allowMultipleAds="false" followRedirects="true">
+      <vmap:VASTAdData>
+        <VAST xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="vast.xsd" version="3.0">
+          <Ad id="710742616">
+            <InLine>
+              <AdSystem>GDFP</AdSystem>
+              <AdTitle>Postroll</AdTitle>
+              <Description>
+                <![CDATA[ Postroll ad ]]>
+              </Description>
+              <Creatives>
+                <Creative id="57861202456" sequence="1">
+                  <Linear>
+                    <Duration>00:00:05</Duration>
+                    <MediaFiles>
+                      <MediaFile id="GDFP" delivery="progressive" width="640" height="360" type="video/mp4" bitrate="450" scalable="true" maintainAspectRatio="true">
+                        <![CDATA[
+file:///android_asset/mp4/postroll-5s.mp4
+]]>
+                      </MediaFile>
+                    </MediaFiles>
+                  </Linear>
+                </Creative>
+              </Creatives>
+            </InLine>
+          </Ad>
+        </VAST>
+      </vmap:VASTAdData>
+    </vmap:AdSource>
+  </vmap:AdBreak>
+</vmap:VMAP>

testdata/src/test/assets/ad-responses/preroll.xml

+<VAST xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    version="3.0" xsi:noNamespaceSchemaLocation="vast.xsd">
+  <Ad id="697203496">
+    <InLine>
+      <AdSystem>GDFP</AdSystem>
+      <AdTitle>Preroll</AdTitle>
+      <Description>
+        <![CDATA[ Preroll ]]>
+      </Description>
+      <Creatives>
+        <Creative id="57859154776" sequence="1">
+          <Linear>
+            <Duration>00:00:05</Duration>
+            <MediaFiles>
+              <MediaFile id="GDFP" delivery="progressive" width="640" height="360" type="video/mp4" bitrate="450" scalable="true" maintainAspectRatio="true">
+                <![CDATA[
+file:///android_asset/mp4/preroll-5s.mp4
+]]>
+              </MediaFile>
+            </MediaFiles>
+          </Linear>
+        </Creative>
+      </Creatives>
+    </InLine>
+  </Ad>
+</VAST>