Add first integration test (routes log from logger to sink)

Author: Tastyep

script/test.sh

@@ -2,6 +2,7 @@
 
 if [ -z "$1" ]; then
   nvim --headless --noplugin -u test/minimal-init.lua -c "PlenaryBustedDirectory test/unit { minimal_init = 'test/minimal-init.lua' }"
+  nvim --headless --noplugin -u test/minimal-init.lua -c "PlenaryBustedDirectory test/integration { minimal_init = 'test/minimal-init.lua' }"
 else
   nvim --headless --noplugin -u test/minimal-init.lua -c "lua require('plenary.busted').run('$1')"
 fi

test/integration/logger_spec.lua

@@ -0,0 +1,26 @@
+local log = require("structlog")
+
+local stub = require("luassert.stub")
+local match = require("luassert.match")
+
+describe("Log message", function()
+  it("should be formatted with the added entries", function()
+    local sink = log.sinks.Console({
+      processors = { log.processors.Namer() },
+      formatter = log.formatters.Format( --
+        "[%s] %s: %s",
+        { "level", "logger_name", "msg" }
+      ),
+    })
+    stub(sink, "write")
+
+    local logger = log.Logger("test", log.level.TRACE, {
+      sink,
+    })
+    logger.context = { context = "test" }
+
+    logger:info("message", { key = "value" })
+
+    assert.stub(sink.write).was_called_with(match.ref(sink), '[INFO] test: message context="test", key="value"')
+  end)
+end)