7121: Replace Get(loc,true) with CompareAndTouch(). Add Compare method to Volume...
[arvados.git] / services / keepstore / handler_test.go
index d1be04a420174998358733a2d5c5335166587875..a9bf91e842f7178fff900e40fb0c2b75fa4e9fba 100644 (file)
@@ -43,9 +43,9 @@ func TestGetHandler(t *testing.T) {
 
        // Prepare two test Keep volumes. Our block is stored on the second volume.
        KeepVM = MakeTestVolumeManager(2)
-       defer KeepVM.Quit()
+       defer KeepVM.Close()
 
-       vols := KeepVM.Volumes()
+       vols := KeepVM.AllWritable()
        if err := vols[0].Put(TEST_HASH, TEST_BLOCK); err != nil {
                t.Error(err)
        }
@@ -54,11 +54,11 @@ func TestGetHandler(t *testing.T) {
        // Turn on permission settings so we can generate signed locators.
        enforce_permissions = true
        PermissionSecret = []byte(known_key)
-       permission_ttl = time.Duration(300) * time.Second
+       blob_signature_ttl = 300 * time.Second
 
        var (
                unsigned_locator  = "/" + TEST_HASH
-               valid_timestamp   = time.Now().Add(permission_ttl)
+               valid_timestamp   = time.Now().Add(blob_signature_ttl)
                expired_timestamp = time.Now().Add(-time.Hour)
                signed_locator    = "/" + SignLocator(TEST_HASH, known_token, valid_timestamp)
                expired_locator   = "/" + SignLocator(TEST_HASH, known_token, expired_timestamp)
@@ -81,10 +81,11 @@ func TestGetHandler(t *testing.T) {
                "Unauthenticated request, unsigned locator",
                string(TEST_BLOCK),
                response)
-       received_xbs := response.Header().Get("X-Block-Size")
-       expected_xbs := fmt.Sprintf("%d", len(TEST_BLOCK))
-       if received_xbs != expected_xbs {
-               t.Errorf("expected X-Block-Size %s, got %s", expected_xbs, received_xbs)
+
+       received_cl := response.Header().Get("Content-Length")
+       expected_cl := fmt.Sprintf("%d", len(TEST_BLOCK))
+       if received_cl != expected_cl {
+               t.Errorf("expected Content-Length %s, got %s", expected_cl, received_cl)
        }
 
        // ----------------
@@ -102,10 +103,11 @@ func TestGetHandler(t *testing.T) {
                "Authenticated request, signed locator", http.StatusOK, response)
        ExpectBody(t,
                "Authenticated request, signed locator", string(TEST_BLOCK), response)
-       received_xbs = response.Header().Get("X-Block-Size")
-       expected_xbs = fmt.Sprintf("%d", len(TEST_BLOCK))
-       if received_xbs != expected_xbs {
-               t.Errorf("expected X-Block-Size %s, got %s", expected_xbs, received_xbs)
+
+       received_cl = response.Header().Get("Content-Length")
+       expected_cl = fmt.Sprintf("%d", len(TEST_BLOCK))
+       if received_cl != expected_cl {
+               t.Errorf("expected Content-Length %s, got %s", expected_cl, received_cl)
        }
 
        // Authenticated request, unsigned locator
@@ -149,7 +151,7 @@ func TestPutHandler(t *testing.T) {
 
        // Prepare two test Keep volumes.
        KeepVM = MakeTestVolumeManager(2)
-       defer KeepVM.Quit()
+       defer KeepVM.Close()
 
        // --------------
        // No server key.
@@ -174,7 +176,7 @@ func TestPutHandler(t *testing.T) {
        // With a server key.
 
        PermissionSecret = []byte(known_key)
-       permission_ttl = time.Duration(300) * time.Second
+       blob_signature_ttl = 300 * time.Second
 
        // When a permission key is available, the locator returned
        // from an authenticated PUT request will be signed.
@@ -193,7 +195,7 @@ func TestPutHandler(t *testing.T) {
                "Authenticated PUT, signed locator, with server key",
                http.StatusOK, response)
        response_locator := strings.TrimSpace(response.Body.String())
-       if !VerifySignature(response_locator, known_token) {
+       if VerifySignature(response_locator, known_token) != nil {
                t.Errorf("Authenticated PUT, signed locator, with server key:\n"+
                        "response '%s' does not contain a valid signature",
                        response_locator)
@@ -216,6 +218,53 @@ func TestPutHandler(t *testing.T) {
                TEST_HASH_PUT_RESPONSE, response)
 }
 
+func TestPutAndDeleteSkipReadonlyVolumes(t *testing.T) {
+       defer teardown()
+       data_manager_token = "fake-data-manager-token"
+       vols := []*MockVolume{CreateMockVolume(), CreateMockVolume()}
+       vols[0].Readonly = true
+       KeepVM = MakeRRVolumeManager([]Volume{vols[0], vols[1]})
+       defer KeepVM.Close()
+       IssueRequest(
+               &RequestTester{
+                       method:       "PUT",
+                       uri:          "/" + TEST_HASH,
+                       request_body: TEST_BLOCK,
+               })
+       defer func(orig bool) {
+               never_delete = orig
+       }(never_delete)
+       never_delete = false
+       IssueRequest(
+               &RequestTester{
+                       method:       "DELETE",
+                       uri:          "/" + TEST_HASH,
+                       request_body: TEST_BLOCK,
+                       api_token:    data_manager_token,
+               })
+       type expect struct {
+               volnum    int
+               method    string
+               callcount int
+       }
+       for _, e := range []expect{
+               {0, "Get", 0},
+               {0, "Compare", 0},
+               {0, "Touch", 0},
+               {0, "Put", 0},
+               {0, "Delete", 0},
+               {1, "Get", 0},
+               {1, "Compare", 1},
+               {1, "Touch", 1},
+               {1, "Put", 1},
+               {1, "Delete", 1},
+       } {
+               if calls := vols[e.volnum].CallCount(e.method); calls != e.callcount {
+                       t.Errorf("Got %d %s() on vol %d, expect %d", calls, e.method, e.volnum, e.callcount)
+               }
+       }
+}
+
 // Test /index requests:
 //   - unauthenticated /index request
 //   - unauthenticated /index/prefix request
@@ -234,9 +283,9 @@ func TestIndexHandler(t *testing.T) {
        // Include multiple blocks on different volumes, and
        // some metadata files (which should be omitted from index listings)
        KeepVM = MakeTestVolumeManager(2)
-       defer KeepVM.Quit()
+       defer KeepVM.Close()
 
-       vols := KeepVM.Volumes()
+       vols := KeepVM.AllWritable()
        vols[0].Put(TEST_HASH, TEST_BLOCK)
        vols[1].Put(TEST_HASH_2, TEST_BLOCK_2)
        vols[0].Put(TEST_HASH+".meta", []byte("metadata"))
@@ -276,10 +325,10 @@ func TestIndexHandler(t *testing.T) {
        // -------------------------------------------------------------
        // Only the superuser should be allowed to issue /index requests.
 
-  // ---------------------------
-  // enforce_permissions enabled
+       // ---------------------------
+       // enforce_permissions enabled
        // This setting should not affect tests passing.
-  enforce_permissions = true
+       enforce_permissions = true
 
        // unauthenticated /index request
        // => UnauthorizedError
@@ -334,10 +383,8 @@ func TestIndexHandler(t *testing.T) {
                http.StatusOK,
                response)
 
-
-
        expected := `^` + TEST_HASH + `\+\d+ \d+\n` +
-               TEST_HASH_2 + `\+\d+ \d+\n$`
+               TEST_HASH_2 + `\+\d+ \d+\n\n$`
        match, _ := regexp.MatchString(expected, response.Body.String())
        if !match {
                t.Errorf(
@@ -353,7 +400,7 @@ func TestIndexHandler(t *testing.T) {
                http.StatusOK,
                response)
 
-       expected = `^` + TEST_HASH + `\+\d+ \d+\n$`
+       expected = `^` + TEST_HASH + `\+\d+ \d+\n\n$`
        match, _ = regexp.MatchString(expected, response.Body.String())
        if !match {
                t.Errorf(
@@ -395,19 +442,21 @@ func TestDeleteHandler(t *testing.T) {
        // Include multiple blocks on different volumes, and
        // some metadata files (which should be omitted from index listings)
        KeepVM = MakeTestVolumeManager(2)
-       defer KeepVM.Quit()
+       defer KeepVM.Close()
 
-       vols := KeepVM.Volumes()
+       vols := KeepVM.AllWritable()
        vols[0].Put(TEST_HASH, TEST_BLOCK)
 
-       // Explicitly set the permission_ttl to 0 for these
+       // Explicitly set the blob_signature_ttl to 0 for these
        // tests, to ensure the MockVolume deletes the blocks
        // even though they have just been created.
-       permission_ttl = time.Duration(0)
+       blob_signature_ttl = time.Duration(0)
 
        var user_token = "NOT DATA MANAGER TOKEN"
        data_manager_token = "DATA MANAGER TOKEN"
 
+       never_delete = false
+
        unauth_req := &RequestTester{
                method: "DELETE",
                uri:    "/" + TEST_HASH,
@@ -488,10 +537,10 @@ func TestDeleteHandler(t *testing.T) {
                t.Error("superuser_existing_block_req: block not deleted")
        }
 
-       // A DELETE request on a block newer than permission_ttl should return
-       // success but leave the block on the volume.
+       // A DELETE request on a block newer than blob_signature_ttl
+       // should return success but leave the block on the volume.
        vols[0].Put(TEST_HASH, TEST_BLOCK)
-       permission_ttl = time.Duration(1) * time.Hour
+       blob_signature_ttl = time.Hour
 
        response = IssueRequest(superuser_existing_block_req)
        ExpectStatusCode(t,
@@ -545,6 +594,8 @@ func TestPullHandler(t *testing.T) {
        var user_token = "USER TOKEN"
        data_manager_token = "DATA MANAGER TOKEN"
 
+       pullq = NewWorkQueue()
+
        good_json := []byte(`[
                {
                        "locator":"locator_with_two_servers",
@@ -594,7 +645,7 @@ func TestPullHandler(t *testing.T) {
                        "Invalid pull request from the data manager",
                        RequestTester{"/pull", data_manager_token, "PUT", bad_json},
                        http.StatusBadRequest,
-                       "Bad Request\n",
+                       "",
                },
        }
 
@@ -649,6 +700,8 @@ func TestTrashHandler(t *testing.T) {
        var user_token = "USER TOKEN"
        data_manager_token = "DATA MANAGER TOKEN"
 
+       trashq = NewWorkQueue()
+
        good_json := []byte(`[
                {
                        "locator":"block1",
@@ -696,7 +749,7 @@ func TestTrashHandler(t *testing.T) {
                        "Invalid trash list from the data manager",
                        RequestTester{"/trash", data_manager_token, "PUT", bad_json},
                        http.StatusBadRequest,
-                       "Bad Request\n",
+                       "",
                },
        }
 
@@ -731,8 +784,8 @@ func IssueRequest(rt *RequestTester) *httptest.ResponseRecorder {
        if rt.api_token != "" {
                req.Header.Set("Authorization", "OAuth2 "+rt.api_token)
        }
-  loggingRouter := MakeLoggingRESTRouter()
-  loggingRouter.ServeHTTP(response, req)
+       loggingRouter := MakeLoggingRESTRouter()
+       loggingRouter.ServeHTTP(response, req)
        return response
 }
 
@@ -744,7 +797,7 @@ func ExpectStatusCode(
        expected_status int,
        response *httptest.ResponseRecorder) {
        if response.Code != expected_status {
-               t.Errorf("%s: expected status %s, got %+v",
+               t.Errorf("%s: expected status %d, got %+v",
                        testname, expected_status, response)
        }
 }
@@ -754,8 +807,120 @@ func ExpectBody(
        testname string,
        expected_body string,
        response *httptest.ResponseRecorder) {
-       if response.Body.String() != expected_body {
+       if expected_body != "" && response.Body.String() != expected_body {
                t.Errorf("%s: expected response body '%s', got %+v",
                        testname, expected_body, response)
        }
 }
+
+// See #7121
+func TestPutNeedsOnlyOneBuffer(t *testing.T) {
+       defer teardown()
+       KeepVM = MakeTestVolumeManager(1)
+       defer KeepVM.Close()
+
+       defer func(orig *bufferPool) {
+               bufs = orig
+       }(bufs)
+       bufs = newBufferPool(1, BLOCKSIZE)
+
+       ok := make(chan struct{})
+       go func() {
+               for i := 0; i < 2; i++ {
+                       response := IssueRequest(
+                               &RequestTester{
+                                       method:       "PUT",
+                                       uri:          "/" + TEST_HASH,
+                                       request_body: TEST_BLOCK,
+                               })
+                       ExpectStatusCode(t,
+                               "TestPutNeedsOnlyOneBuffer", http.StatusOK, response)
+               }
+               ok <- struct{}{}
+       }()
+
+       select {
+       case <-ok:
+       case <-time.After(time.Second):
+               t.Fatal("PUT deadlocks with maxBuffers==1")
+       }
+}
+
+// Invoke the PutBlockHandler a bunch of times to test for bufferpool resource
+// leak.
+func TestPutHandlerNoBufferleak(t *testing.T) {
+       defer teardown()
+
+       // Prepare two test Keep volumes.
+       KeepVM = MakeTestVolumeManager(2)
+       defer KeepVM.Close()
+
+       ok := make(chan bool)
+       go func() {
+               for i := 0; i < maxBuffers+1; i += 1 {
+                       // Unauthenticated request, no server key
+                       // => OK (unsigned response)
+                       unsigned_locator := "/" + TEST_HASH
+                       response := IssueRequest(
+                               &RequestTester{
+                                       method:       "PUT",
+                                       uri:          unsigned_locator,
+                                       request_body: TEST_BLOCK,
+                               })
+                       ExpectStatusCode(t,
+                               "TestPutHandlerBufferleak", http.StatusOK, response)
+                       ExpectBody(t,
+                               "TestPutHandlerBufferleak",
+                               TEST_HASH_PUT_RESPONSE, response)
+               }
+               ok <- true
+       }()
+       select {
+       case <-time.After(20 * time.Second):
+               // If the buffer pool leaks, the test goroutine hangs.
+               t.Fatal("test did not finish, assuming pool leaked")
+       case <-ok:
+       }
+}
+
+// Invoke the GetBlockHandler a bunch of times to test for bufferpool resource
+// leak.
+func TestGetHandlerNoBufferleak(t *testing.T) {
+       defer teardown()
+
+       // Prepare two test Keep volumes. Our block is stored on the second volume.
+       KeepVM = MakeTestVolumeManager(2)
+       defer KeepVM.Close()
+
+       vols := KeepVM.AllWritable()
+       if err := vols[0].Put(TEST_HASH, TEST_BLOCK); err != nil {
+               t.Error(err)
+       }
+
+       ok := make(chan bool)
+       go func() {
+               for i := 0; i < maxBuffers+1; i += 1 {
+                       // Unauthenticated request, unsigned locator
+                       // => OK
+                       unsigned_locator := "/" + TEST_HASH
+                       response := IssueRequest(
+                               &RequestTester{
+                                       method: "GET",
+                                       uri:    unsigned_locator,
+                               })
+                       ExpectStatusCode(t,
+                               "Unauthenticated request, unsigned locator", http.StatusOK, response)
+                       ExpectBody(t,
+                               "Unauthenticated request, unsigned locator",
+                               string(TEST_BLOCK),
+                               response)
+               }
+               ok <- true
+       }()
+       select {
+       case <-time.After(20 * time.Second):
+               // If the buffer pool leaks, the test goroutine hangs.
+               t.Fatal("test did not finish, assuming pool leaked")
+       case <-ok:
+       }
+}