Automatic backups: Added test for DatabaseUtils.saveDatabaseCopy with or without datetime in it's name

uhabits-android/src/test/java/org/isoron/uhabits/utils/DatabaseUtilsTest.kt

@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2016-2021 Álinson Santos Xavier <git@axavier.org>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.utils
+
+import android.content.Context
+import org.hamcrest.CoreMatchers.equalTo
+import org.hamcrest.MatcherAssert.assertThat
+import org.isoron.uhabits.core.utils.DateUtils.Companion.setFixedLocalTime
+import org.junit.After
+import org.junit.Before
+import org.junit.Test
+import org.mockito.kotlin.mock
+import org.mockito.kotlin.whenever
+import java.io.File
+import java.nio.file.Files
+import kotlin.test.assertTrue
+
+class DatabaseUtilsTest {
+    private lateinit var baseDir: File
+    private lateinit var filesDir: File
+    private lateinit var backupDir: File
+    private lateinit var context: Context
+
+    @Before
+    fun setUp() {
+        baseDir = Files.createTempDirectory("dbutils").toFile()
+        filesDir = File(baseDir, "files").apply { mkdirs() }
+        File(baseDir, "databases").apply {
+            mkdirs()
+            File(this, "uhabits.db").writeText("data")
+        }
+        backupDir = File(baseDir, "backup").apply { mkdirs() }
+
+        context = mock()
+        whenever(context.filesDir).thenReturn(filesDir)
+        setFixedLocalTime(1422172800000L)
+    }
+
+    @After
+    fun tearDown() {
+        setFixedLocalTime(null)
+    }
+
+    @Test
+    fun testSaveDatabaseCopyWithDate() {
+        val path = DatabaseUtils.saveDatabaseCopy(context, backupDir, true)
+        val expected = File(backupDir, "Loop Habits Backup 2015-01-25 080000.db").absolutePath
+        assertThat(path, equalTo(expected))
+        assertTrue(File(path).exists())
+    }
+
+    @Test
+    fun testSaveDatabaseCopyWithoutDate() {
+        val path = DatabaseUtils.saveDatabaseCopy(context, backupDir, false)
+        val expected = File(backupDir, "Loop Habits Backup.db").absolutePath
+        assertThat(path, equalTo(expected))
+        assertTrue(File(path).exists())
+    }
+}