| -- |
| -- Licensed to the Apache Software Foundation (ASF) under one or more |
| -- contributor license agreements. See the NOTICE file distributed with |
| -- this work for additional information regarding copyright ownership. |
| -- The ASF licenses this file to You under the Apache License, Version 2.0 |
| -- (the "License"); you may not use this file except in compliance with |
| -- the License. You may obtain a copy of the License at |
| -- |
| -- http://www.apache.org/licenses/LICENSE-2.0 |
| -- |
| -- Unless required by applicable law or agreed to in writing, software |
| -- distributed under the License is distributed on an "AS IS" BASIS, |
| -- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| -- See the License for the specific language governing permissions and |
| -- limitations under the License. |
| -- |
| |
| local lu = require('luaunit') |
| local correlationContext = require('skywalking.correlation_context') |
| local TC = require('skywalking.tracing_context') |
| local Span = require("skywalking.span") |
| |
| TestCorrelationContext = {} |
| function TestCorrelationContext:testFromSW8Value() |
| -- simple analyze |
| local context = correlationContext.fromSW8Value('dGVzdDE=:dDE=,dGVzdDI=:dDI=') |
| lu.assertNotNil(context) |
| lu.assertEquals(context["test1"], "t1") |
| lu.assertEquals(context["test2"], "t2") |
| |
| -- analyze with empty value |
| context = correlationContext.fromSW8Value('dGVzdDE=:') |
| lu.assertNotNil(context) |
| lu.assertNil(context["test1"]) |
| |
| -- analyze with empty header |
| context = correlationContext.fromSW8Value('') |
| lu.assertNotNil(context) |
| lu.assertNotNil(#context == 0) |
| end |
| |
| function TestCorrelationContext:testSerialize() |
| -- serialize empty correlation |
| local context = correlationContext.fromSW8Value('') |
| local encode_context = correlationContext.serialize(context) |
| lu.assertNotNil(encode_context) |
| lu.assertEquals(encode_context, "") |
| |
| -- serialize with multiple value |
| context = correlationContext.fromSW8Value('') |
| correlationContext.put(context, "test1", "t1") |
| correlationContext.put(context, "test2", "t2") |
| encode_context = correlationContext.serialize(context) |
| lu.assertNotNil(encode_context) |
| context = correlationContext.fromSW8Value(encode_context) |
| lu.assertNotNil(context) |
| lu.assertEquals(context["test1"], "t1") |
| lu.assertEquals(context["test2"], "t2") |
| |
| -- serialize with empty value |
| context = correlationContext.fromSW8Value('') |
| correlationContext.put(context, "test1", "") |
| encode_context = correlationContext.serialize(context) |
| lu.assertNotNil(encode_context) |
| lu.assertEquals(encode_context, "") |
| end |
| |
| function TestCorrelationContext:testPut() |
| -- put with empty key and value |
| local context = correlationContext.fromSW8Value('') |
| correlationContext.put(context, nil, nil) |
| lu.assertEquals(correlationContext.serialize(context), '') |
| |
| -- put nil to remove key |
| correlationContext.put(context, "test1", "t1") |
| correlationContext.put(context, "test1", nil) |
| lu.assertEquals(correlationContext.serialize(context), '') |
| |
| -- overflow put |
| correlationContext.put(context, "test1", "t1") |
| correlationContext.put(context, "test2", "t2") |
| correlationContext.put(context, "test3", "t3") |
| correlationContext.put(context, "test4", "t4") |
| local encode_context = correlationContext.serialize(context) |
| lu.assertNotNil(encode_context) |
| local context = correlationContext.fromSW8Value(encode_context) |
| lu.assertEquals(context["test1"], "t1") |
| lu.assertEquals(context["test2"], "t2") |
| lu.assertEquals(context["test3"], "t3") |
| end |
| |
| function TestCorrelationContext:testTracingContext() |
| -- transform data |
| local context = TC.new("service", "instance") |
| local header = {} |
| header["sw8-correlation"] = 'dGVzdDI=:dDI=,dGVzdDE=:dDE=,dGVzdDM=:dDM=' |
| TC.createEntrySpan(context, 'operation_name', nil, header) |
| lu.assertNotNil(context.correlation) |
| local contextCarrier = {} |
| |
| -- mock ngx.req.set_header(k, v) |
| ngx = { |
| req = { |
| set_header = function(k, v) |
| contextCarrier[k] = v |
| end |
| } |
| } |
| local exitSpan = TC.createExitSpan(context, 'operation_name', nil) |
| TC.inject(context, exitSpan, 'peer', context.correlation) |
| lu.assertNotNil(contextCarrier['sw8-correlation']) |
| local correlation = correlationContext.fromSW8Value(contextCarrier['sw8-correlation']) |
| lu.assertEquals(correlation["test1"], "t1") |
| lu.assertEquals(correlation["test2"], "t2") |
| |
| -- transform data with adding data |
| exitSpan = TC.createExitSpan(context, 'operation_name', nil) |
| TC.inject(context, exitSpan, 'peer', { |
| test3 = "t3" |
| }) |
| lu.assertNotNil(contextCarrier['sw8-correlation']) |
| correlation = correlationContext.fromSW8Value(contextCarrier['sw8-correlation']) |
| lu.assertEquals(correlation["test1"], "t1") |
| lu.assertEquals(correlation["test2"], "t2") |
| lu.assertEquals(correlation["test3"], "t3") |
| end |
| |
| -- end TestTracingContext |
| |
| |
| os.exit( lu.LuaUnit.run() ) |