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markt pushed a commit to branch 9.0.x
in repository https://gitbox.apache.org/repos/asf/tomcat.git
commit f65825a77fdbcc225c895c43c371674ae87c3b79
Author: Mark Thomas <ma...@apache.org>
AuthorDate: Mon Mar 15 19:24:08 2021 +0000
Fix failing test after flow control updates
---
.../apache/coyote/http2/TestCancelledUpload.java | 73 ++++++++--------------
1 file changed, 26 insertions(+), 47 deletions(-)
diff --git a/test/org/apache/coyote/http2/TestCancelledUpload.java
b/test/org/apache/coyote/http2/TestCancelledUpload.java
index 9964aa4..accd4b3 100644
--- a/test/org/apache/coyote/http2/TestCancelledUpload.java
+++ b/test/org/apache/coyote/http2/TestCancelledUpload.java
@@ -73,26 +73,6 @@ public class TestCancelledUpload extends Http2TestBase {
// - reset the stream if further DATA frames are received
parser.readFrame(true);
- // If reset is first frame received end test here
- if (checkReset()) {
- return;
- }
-
- // Validate any WindowSize frames. Usually arrive in pairs. Depending
on
- // timing, can see a reset rather than than stream update.
- while (output.getTrace().startsWith("0-WindowSize-[")) {
- String trace = output.getTrace();
- int size = Integer.parseInt(trace.substring(14, trace.length() -
2));
- output.clearTrace();
- parser.readFrame(true);
- if (checkReset()) {
- return;
- }
- Assert.assertEquals("3-WindowSize-[" + size + "]\n",
output.getTrace());
- output.clearTrace();
- parser.readFrame(true);
- }
-
// Check for reset and exit if found
if (checkReset()) {
return;
@@ -106,58 +86,57 @@ public class TestCancelledUpload extends Http2TestBase {
"3-HeadersEnd\n",
output.getTrace());
output.clearTrace();
-
parser.readFrame(true);
+
// Check for reset and exit if found
if (checkReset()) {
return;
}
- // Not reset, must be request body
+ // Not window update, not reset, must be the response body
Assert.assertEquals("3-Body-0\n" +
"3-EndOfStream\n",
output.getTrace());
output.clearTrace();
-
- // There must be a reset. There may be some WindowSize frames
parser.readFrame(true);
- // Validate any WindowSize frames. Usually arrive in pairs. Depending
on
- // timing, can see a reset rather than than stream update.
- while (output.getTrace().startsWith("0-WindowSize-[")) {
- String trace = output.getTrace();
- int size = Integer.parseInt(trace.substring(14, trace.length() -
2));
- output.clearTrace();
- parser.readFrame(true);
- if (checkReset()) {
- return;
- }
- Assert.assertEquals("3-WindowSize-[" + size + "]\n",
output.getTrace());
- output.clearTrace();
- parser.readFrame(true);
- }
-
- // This should be the reset
- checkReset();
- Assert.assertEquals("3-RST-[3]\n", output.getTrace());
+ Assert.assertTrue(checkReset());
// If there are any more frames after this, ignore them
}
/*
- * Depending on timing, several resets may be sent.
+ * Looking for a RST frame with error type 3 (flow control error).
+ *
+ * If there is a flow control window update for stream 0 it may be followed
+ * by one for stream 3.
+ *
+ * If there is a flow control window update for stream 3 it will always be
+ * preceded by one for stream 0.
*/
private boolean checkReset() throws IOException, Http2Exception {
+ int lastConnectionFlowControlWindowUpdate = -1;
while (true) {
- if (output.getTrace().startsWith("3-RST-[3]\n")) {
+ String trace = output.getTrace();
+ if (trace.startsWith("3-RST-[3]\n")) {
+ // This is the reset we are looking for
return true;
- } else if (output.getTrace().startsWith("3-RST-[")) {
- output.clearTrace();
- parser.readFrame(true);
+ } else if (trace.startsWith("3-RST-[")) {
+ // Probably error type 8 (cancel) - ignore
+ } else if (trace.startsWith("0-WindowSize-[")) {
+ // Connection flow control window update
+ lastConnectionFlowControlWindowUpdate =
Integer.parseInt(trace.substring(14, trace.length() - 2));
+ } else if (trace.startsWith("3-WindowSize-[")) {
+ // Stream flow control window update
+ // Must be same size as last connection flow control window
+ // update. True for Tomcat anyway.
+ Assert.assertEquals("3-WindowSize-[" +
lastConnectionFlowControlWindowUpdate + "]\n", trace);
} else {
return false;
}
+ output.clearTrace();
+ parser.readFrame(true);
}
}
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