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import osproc, streams, os, strutils, re
{.experimental.}
## Compiler as a service tester.
##
## Please read docs/idetools.txt for information about this.
type
TRunMode = enum
ProcRun, CaasRun, SymbolProcRun
NimSession* = object
nim: Process # Holds the open process for CaasRun sessions, nil otherwise.
mode: TRunMode # Stores the type of run mode the session was started with.
lastOutput: string # Preserves the last output, needed for ProcRun mode.
filename: string # Appended to each command starting with '>'. Also a var.
modname: string # Like filename but without extension.
nimcache: string # Input script based name for the nimcache dir.
const
modes = [CaasRun, ProcRun, SymbolProcRun]
filenameReplaceVar = "$TESTNIM"
moduleReplaceVar = "$MODULE"
silentReplaceVar = "$SILENT"
silentReplaceText = "--verbosity:0 --hints:off"
var
TesterDir = getAppDir() / ".."
NimBin = TesterDir / "../bin/nim"
proc replaceVars(session: var NimSession, text: string): string =
result = text.replace(filenameReplaceVar, session.filename)
result = result.replace(moduleReplaceVar, session.modname)
result = result.replace(silentReplaceVar, silentReplaceText)
proc startNimSession(project, script: string, mode: TRunMode):
NimSession =
let (dir, name, ext) = project.splitFile
result.mode = mode
result.lastOutput = ""
result.filename = name & ext
result.modname = name
let (nimcacheDir, nimcacheName, nimcacheExt) = script.splitFile
result.nimcache = "SymbolProcRun." & nimcacheName
if mode == SymbolProcRun:
removeDir(nimcacheDir / result.nimcache)
else:
removeDir(nimcacheDir / "nimcache")
if mode == CaasRun:
result.nim = startProcess(NimBin, workingDir = dir,
args = ["serve", "--server.type:stdin", name])
proc doCaasCommand(session: var NimSession, command: string): string =
assert session.mode == CaasRun
session.nim.inputStream.write(session.replaceVars(command) & "\n")
session.nim.inputStream.flush
result = ""
while true:
var line = ""
if session.nim.outputStream.readLine(line):
if line.string == "": break
result.add(line.string & "\n")
else:
result = "FAILED TO EXECUTE: " & command & "\n" & result
break
proc doProcCommand(session: var NimSession, command: string): string =
try:
assert session.mode == ProcRun or session.mode == SymbolProcRun
except:
result = "FAILED TO EXECUTE: " & command & "\n" & result
var
process = startProcess(NimBin, args = session.replaceVars(command).split)
stream = outputStream(process)
line = ""
result = ""
while stream.readLine(line):
if result.len > 0: result &= "\n"
result &= line.string
process.close()
proc doCommand(session: var NimSession, command: string) =
if session.mode == CaasRun:
if not session.nim.running:
session.lastOutput = "FAILED TO EXECUTE: " & command & "\n" &
"Exit code " & $session.nim.peekExitCode
return
session.lastOutput = doCaasCommand(session,
command & " " & session.filename)
else:
var command = command
# For symbol runs we prepend the necessary parameters to avoid clobbering
# the normal nimcache.
if session.mode == SymbolProcRun:
command = "--symbolFiles:on --nimcache:" & session.nimcache &
" " & command
session.lastOutput = doProcCommand(session,
command & " " & session.filename)
proc destroy(session: var NimSession) {.destructor.} =
if session.mode == CaasRun:
session.nim.close
proc doScenario(script: string, output: Stream, mode: TRunMode, verbose: bool): bool =
result = true
var f = open(script)
var project = ""
if f.readLine(project):
var
s = startNimSession(script.parentDir / project.string, script, mode)
tline = ""
ln = 1
while f.readLine(tline):
var line = tline.string
inc ln
# Filter lines by run mode, removing the prefix if the mode is current.
for testMode in modes:
if line.startsWith($testMode):
if testMode != mode:
line = ""
else:
line = line[len($testMode)..len(line) - 1].strip
break
if line.strip.len == 0: continue
if line.startsWith("#"):
output.writeLine line
continue
elif line.startsWith(">"):
s.doCommand(line.substr(1).strip)
output.writeLine line, "\n", if verbose: s.lastOutput else: ""
else:
var expectMatch = true
var pattern = s.replaceVars(line)
if line.startsWith("!"):
pattern = pattern.substr(1).strip
expectMatch = false
let actualMatch =
s.lastOutput.find(re(pattern, flags = {reStudy})) != -1
if expectMatch == actualMatch:
output.writeLine "SUCCESS ", line
else:
output.writeLine "FAILURE ", line
result = false
iterator caasTestsRunner*(filter = "", verbose = false): tuple[test,
output: string, status: bool,
mode: TRunMode] =
for scenario in os.walkFiles(TesterDir / "caas/*.txt"):
if filter.len > 0 and find(scenario, filter) == -1: continue
for mode in modes:
var outStream = newStringStream()
let r = doScenario(scenario, outStream, mode, verbose)
yield (scenario, outStream.data, r, mode)
when isMainModule:
var
filter = ""
failures = 0
verbose = false
for i in 0..paramCount() - 1:
let param = paramStr(i + 1)
case param
of "verbose": verbose = true
else: filter = param
if verbose and len(filter) > 0:
echo "Running only test cases matching filter '$1'" % [filter]
for test, output, result, mode in caasTestsRunner(filter, verbose):
if not result or verbose:
echo "Mode ", $mode, " (", if result: "succeeded)" else: "failed)"
echo test
echo output
echo "---------\n"
if not result:
failures += 1
quit(failures)
|
