feat: Working on cli client and tests

Tests/CliClientTests/CliClientTests.swift

@@ -0,0 +1,99 @@
+@_spi(Internal) import CliClient
+import Dependencies
+import Foundation
+import Logging
+import Models
+import MQTTNIO
+import Testing
+
+@Test
+func checkTesting() {
+  #expect(Bool(true))
+}
+
+@Test(
+  arguments: [
+    (MQTTClient.Version.v3_1_1, ["3", "3.1", "3.1.1", "00367894"]),
+    (MQTTClient.Version.v5_0, ["5", "5.1", "5.1.1", "00000500012"]),
+    (nil, ["0", "0.1", "0.1.1", "0000000001267894", "blob"])
+  ]
+)
+func checkParseMQTTVersion(
+  version: MQTTClient.Version?,
+  strings: [String]
+) {
+  withDependencies {
+    $0.cliClient = .liveValue
+  } operation: {
+    @Dependency(\.cliClient) var cliClient
+    for string in strings {
+      #expect(cliClient.parseMqttClientVersion(string) == version)
+      #expect(cliClient.parseMqttClientVersion("v\(string)") == version)
+    }
+  }
+}
+
+@Test(
+  arguments: [
+    (Logger.Level.debug, EnvVars(appEnv: .staging, logLevel: nil)),
+    (Logger.Level.debug, EnvVars(appEnv: .development, logLevel: nil)),
+    (Logger.Level.info, EnvVars(appEnv: .production, logLevel: nil)),
+    (Logger.Level.trace, EnvVars(appEnv: .testing, logLevel: nil)),
+    (Logger.Level.info, EnvVars(appEnv: .staging, logLevel: .info)),
+    (Logger.Level.trace, EnvVars(appEnv: .development, logLevel: .trace)),
+    (Logger.Level.warning, EnvVars(appEnv: .production, logLevel: .warning)),
+    (Logger.Level.debug, EnvVars(appEnv: .testing, logLevel: .debug))
+  ]
+)
+func logLevelFromEnvVars(expectedLevel: Logger.Level, environment: EnvVars) {
+  withDependencies {
+    $0.cliClient = .liveValue
+  } operation: {
+    @Dependency(\.cliClient) var cliClient
+    #expect(cliClient.logLevel(environment) == expectedLevel)
+  }
+}
+
+@Test(
+  arguments: [
+    (
+      CliClient.EnvVarsRequest(envFilePath: nil, logger: nil, version: nil),
+      EnvVars()
+    ),
+    (
+      CliClient.EnvVarsRequest(envFilePath: nil, logger: nil, version: "3"),
+      EnvVars(version: "3")
+    ),
+    (
+      CliClient.EnvVarsRequest(
+        envFilePath: "Tests/CliClientTests/test.env",
+        logger: nil,
+        version: nil
+      ),
+      EnvVars(
+        appEnv: .testing,
+        host: "test.mqtt",
+        port: "1234",
+        identifier: "testing-mqtt",
+        userName: "test-user",
+        password: "super-secret",
+        logLevel: .debug,
+        version: "5.0"
+      )
+    )
+  ]
+)
+func checkMakeEnvVars(
+  request: CliClient.EnvVarsRequest,
+  expectedEnvVars: EnvVars
+) async throws {
+  try await withDependencies {
+    $0.cliClient = .liveValue
+    $0.environment = .liveValue
+    $0.environment.processInfo = { [:] }
+  } operation: {
+    @Dependency(\.cliClient) var cliClient
+    let result = try await cliClient.makeEnvVars(request)
+    #expect(result == expectedEnvVars)
+  }
+}