Fix invalid parsing ot TaskName.get and test coverage.

lib/src/cli/command.dart

@@ -64,7 +64,7 @@ class Command {
 
     if (script == ScriptName.consumer) {
       if (taskName == TaskName.init) {
-        if (arguments.isEmpty) {
+        if (args.isEmpty) {
           return Command(taskName: taskName, scriptName: script);
         } else {
           return null;

lib/src/cli/input.dart

@@ -110,7 +110,7 @@ extension TaskNameParser on String? {
       case "ADD":
         return TaskName.add;
       case "GET":
-        return TaskName.init;
+        return TaskName.get;
       case "INIT":
         return TaskName.init;
       default:

test/src/cli/command_test.dart

@@ -0,0 +1,98 @@
+// Copyright (c) 2021 - 2023 Buijs Software
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+import "package:klutter/klutter.dart";
+import "package:test/test.dart";
+
+void main() {
+  test("Verify parsing consumer init command", () {
+    final command = Command.from(
+        script: ScriptName.consumer,
+        arguments: ["init"]);
+
+    expect(command != null, true, reason: "command should not be null");
+    expect(command!.scriptName, ScriptName.consumer);
+    expect(command.taskName, TaskName.init);
+  });
+
+  test("Verify parsing get flutte command", () {
+    final command = Command.from(
+        script: ScriptName.producer,
+        arguments: ["get", "flutter=3.10.6.macos.x64"]);
+
+    expect(command != null, true);
+  });
+
+  test("When more than 2 arguments are supplied then command is null", () {
+    final command = Command.from(
+        script: ScriptName.producer,
+        arguments: ["init", "bom=2023.1.1.beta", "flutter=3.10.6.macos.arm64", "x=y"]);
+
+    expect(command == null, true, reason: "command should be null because too many arguments");
+  });
+
+  test("When an argument has more than one '=' then command is null", () {
+    final command = Command.from(
+        script: ScriptName.producer,
+        arguments: ["init", "bom=2023.1.1.beta=woot", "flutter=3.10.6.macos.arm64",]);
+
+    expect(command == null, true, reason: "command should be null argument is invalid");
+  });
+
+  test("When an argument is not a valid option value then command is null", () {
+    final command = Command.from(
+        script: ScriptName.producer,
+        arguments: ["init", "woot=2023.1.1.beta", "flutter=3.10.6.macos.arm64",]);
+
+    expect(command == null, true, reason: "command should be null because argument is invalid");
+  });
+
+  test("When get command has more than 1 argument, command is null", () {
+    final command = Command.from(
+        script: ScriptName.producer,
+        arguments: ["get", "this", "and" ]);
+
+    expect(command == null, true, reason: "command should be null because get can only have one argument");
+  });
+
+  test("When get command option is invalid, command is null", () {
+    final command = Command.from(
+        script: ScriptName.producer,
+        arguments: ["get", "flutter=this=that"]);
+
+    expect(command, null);
+  });
+
+  test("When get command option is not named flutter, command is null", () {
+    final command = Command.from(
+        script: ScriptName.producer,
+        arguments: ["get", "not=flutter"]);
+
+    expect(command, null);
+  });
+
+  test("When get command option flutter is not a valid version, command is null", () {
+    final command = Command.from(
+        script: ScriptName.producer,
+        arguments: ["get", "flutter=not.really.flutterrrr"]);
+
+    expect(command, null);
+  });
+}