llvm-project/clang-tools-extra/clangd/test/protocol.test

# RUN: not clangd -pretty -sync -enable-test-uri-scheme < %s | FileCheck -strict-whitespace %s
# RUN: not clangd -pretty -sync -enable-test-uri-scheme < %s 2>&1 | FileCheck -check-prefix=STDERR %s
# vim: fileformat=dos
# It is absolutely vital that this file has CRLF line endings.
#
# Note that we invert the test because we intent to let clangd exit prematurely.
#
# Test protocol parsing
Content-Length: 125
Content-Type: application/vscode-jsonrpc; charset-utf-8

{"jsonrpc":"2.0","id":0,"method":"initialize","params":{"processId":123,"rootPath":"clangd","capabilities":{},"trace":"off"}}
# Test message with Content-Type after Content-Length
#
#      CHECK:  "jsonrpc": "2.0",
# CHECK-NEXT:  "result": {
#      CHECK:  }
Content-Length: 246

{"jsonrpc":"2.0","method":"textDocument/didOpen","params":{"textDocument":{"uri":"test:///main.cpp","languageId":"cpp","version":1,"text":"struct fake { int a, bb, ccc; int f(int i, const float f) const; };\nint main() {\n  fake f;\n  f.\n}\n"}}}

Content-Length: 104

{"jsonrpc":"2.0","method":"textDocument/didChange","params":{"textDocument":{"uri":"test:///main.cpp"}}}

Content-Type: application/vscode-jsonrpc; charset-utf-8
Content-Length: 146

{"jsonrpc":"2.0","id":1,"method":"textDocument/completion","params":{"textDocument":{"uri":"test:/main.cpp"},"position":{"line":3,"character":5}}}
# Test message with Content-Type before Content-Length
#
#      CHECK:  "id": 1,
# CHECK-NEXT:  "jsonrpc": "2.0",
# CHECK-NEXT:  "result": {
# CHECK-NEXT:    "isIncomplete": false,
# CHECK-NEXT:    "items": [
#      CHECK:        "filterText": "a",
# CHECK-NEXT:        "insertText": "a",
# CHECK-NEXT:        "insertTextFormat": 1,
# CHECK-NEXT:        "kind": 5,
# CHECK-NEXT:        "label": " a",
# CHECK-NEXT:        "score": {{[0-9]+.[0-9]+}},
# CHECK-NEXT:        "sortText": "{{.*}}"
#      CHECK:    ]
# CHECK-NEXT:  }

X-Test: Testing
Content-Type: application/vscode-jsonrpc; charset-utf-8
Content-Length: 146
Content-Type: application/vscode-jsonrpc; charset-utf-8
X-Testing: Test

{"jsonrpc":"2.0","id":2,"method":"textDocument/completion","params":{"textDocument":{"uri":"test:/main.cpp"},"position":{"line":3,"character":5}}}

Content-Type: application/vscode-jsonrpc; charset-utf-8
Content-Length: 10
Content-Length: 146

{"jsonrpc":"2.0","id":3,"method":"textDocument/completion","params":{"textDocument":{"uri":"test:/main.cpp"},"position":{"line":3,"character":5}}}
# Test message with duplicate Content-Length headers
#
#      CHECK:  "id": 3,
# CHECK-NEXT:  "jsonrpc": "2.0",
# CHECK-NEXT:  "result": {
# CHECK-NEXT:    "isIncomplete": false,
# CHECK-NEXT:    "items": [
#      CHECK:        "filterText": "a",
# CHECK-NEXT:        "insertText": "a",
# CHECK-NEXT:        "insertTextFormat": 1,
# CHECK-NEXT:        "kind": 5,
# CHECK-NEXT:        "label": " a",
# CHECK-NEXT:        "score": {{[0-9]+.[0-9]+}},
# CHECK-NEXT:        "sortText": "{{.*}}"
#      CHECK:    ]
# CHECK-NEXT:  }
# STDERR: Warning: Duplicate Content-Length header received. The previous value for this message (10) was ignored.

Content-Type: application/vscode-jsonrpc; charset-utf-8
Content-Length: 10

{"jsonrpc":"2.0","id":4,"method":"textDocument/completion","params":{"textDocument":{"uri":"test:/main.cpp"},"position":{"line":3,"character":5}}}
# Test message with malformed Content-Length
#
# STDERR: JSON parse error
# Ensure we recover by sending another (valid) message

Content-Length: 146

{"jsonrpc":"2.0","id":5,"method":"textDocument/completion","params":{"textDocument":{"uri":"test:/main.cpp"},"position":{"line":3,"character":5}}}
# Test message with Content-Type before Content-Length
#
#      CHECK:  "id": 5,
# CHECK-NEXT:  "jsonrpc": "2.0",
# CHECK-NEXT:  "result": {
# CHECK-NEXT:    "isIncomplete": false,
# CHECK-NEXT:    "items": [
#      CHECK:        "filterText": "a",
# CHECK-NEXT:        "insertText": "a",
# CHECK-NEXT:        "insertTextFormat": 1,
# CHECK-NEXT:        "kind": 5,
# CHECK-NEXT:        "label": " a",
# CHECK-NEXT:        "score": {{[0-9]+.[0-9]+}},
# CHECK-NEXT:        "sortText": "{{.*}}"
#      CHECK:    ]
# CHECK-NEXT:  }
Content-Length: 1024

{"jsonrpc":"2.0","id":5,"method":"textDocument/completion","params":{"textDocument":{"uri":"test:/main.cpp"},"position":{"line":3,"character":5}}}
# Test message which reads beyond the end of the stream.
#
# Ensure this is the last test in the file!
# STDERR: Input was aborted. Read only {{[0-9]+}} bytes of expected {{[0-9]+}}.