Adding Test for Parsing Flash Task

Test: fastboot_test
Bug: 194686221
Change-Id: Ie15b2d0423366fb9d1debb9be52de3b6d3a891af
diff --git a/fastboot/task_test.cpp b/fastboot/task_test.cpp
new file mode 100644
index 0000000..400e27f
--- /dev/null
+++ b/fastboot/task_test.cpp
@@ -0,0 +1,82 @@
+//
+// Copyright (C) 2023 The Android Open Source Project
+//
+// Licensed 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.
+//
+
+#include "task.h"
+#include "fastboot.h"
+
+#include <gtest/gtest.h>
+#include <fstream>
+#include <iostream>
+#include <memory>
+#include <unordered_map>
+#include "android-base/strings.h"
+using android::base::Split;
+
+class ParseTest : public ::testing ::Test {
+  protected:
+    void SetUp() override {
+        fp = std::make_unique<FlashingPlan>();
+        fp->slot_override = "b";
+        fp->secondary_slot = "a";
+        fp->wants_wipe = false;
+    }
+    void TearDown() override {}
+
+    std::unique_ptr<FlashingPlan> fp;
+
+  private:
+};
+
+static std::vector<std::unique_ptr<Task>> collectTasks(FlashingPlan* fp,
+                                                       const std::vector<std::string>& commands) {
+    std::vector<std::vector<std::string>> vec_commands;
+    for (auto& command : commands) {
+        vec_commands.emplace_back(android::base::Split(command, " "));
+    }
+    std::vector<std::unique_ptr<Task>> tasks;
+    for (auto& command : vec_commands) {
+        tasks.emplace_back(ParseFastbootInfoLine(fp, command));
+    }
+    return tasks;
+}
+
+TEST_F(ParseTest, CORRECT_FlASH_TASK_FORMED) {
+    std::vector<std::string> commands = {"flash dtbo", "flash --slot-other system system_other.img",
+                                         "flash system", "flash --apply-vbmeta vbmeta"};
+
+    std::vector<std::unique_ptr<Task>> tasks = collectTasks(fp.get(), commands);
+
+    std::vector<std::vector<std::string>> expected_values{
+            {"dtbo", "dtbo_b", "b", "dtbo.img"},
+            {"system", "system_a", "a", "system_other.img"},
+            {"system", "system_b", "b", "system.img"},
+            {"vbmeta", "vbmeta_b", "b", "vbmeta.img"}
+
+    };
+
+    for (auto& task : tasks) {
+        ASSERT_TRUE(task != nullptr);
+    }
+
+    for (size_t i = 0; i < tasks.size(); i++) {
+        auto task = tasks[i]->AsFlashTask();
+        ASSERT_TRUE(task != nullptr);
+        ASSERT_EQ(task->GetPartition(), expected_values[i][0]);
+        ASSERT_EQ(task->GetPartitionAndSlot(), expected_values[i][1]);
+        ASSERT_EQ(task->GetSlot(), expected_values[i][2]);
+        ASSERT_EQ(task->GetImageName(), expected_values[i][3]);
+    }
+}