PIN : add some tests to PinEntry

features/lockscreen/impl/src/test/kotlin/io/element/android/features/lockscreen/impl/pin/model/PinEntryTest.kt

@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2023 New Vector Ltd
+ *
+ * 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.
+ */
+
+package io.element.android.features.lockscreen.impl.pin.model
+
+import com.google.common.truth.Truth.assertThat
+import org.junit.Test
+
+class PinEntryTest {
+
+    @Test
+    fun `when using fillWith with empty string ensure pin is empty`() {
+        val pinEntry = PinEntry.createEmpty(4)
+        val newPinEntry = pinEntry.fillWith("")
+        assertThat(newPinEntry.isEmpty()).isTrue()
+    }
+
+    @Test
+    fun `when using fillWith with bigger string than size ensure pin is complete`() {
+        val pinEntry = PinEntry.createEmpty(4)
+        val newPinEntry = pinEntry.fillWith("12345")
+        assertThat(newPinEntry.isComplete()).isTrue()
+        newPinEntry.assertText("1234")
+    }
+
+    @Test
+    fun `when using fillWith with non digit string ensure pin is filtering`() {
+        val pinEntry = PinEntry.createEmpty(4)
+        val newPinEntry = pinEntry.fillWith("12aa")
+        newPinEntry.assertText("12")
+    }
+
+    @Test
+    fun `when using clear ensure pin is empty`() {
+        val pinEntry = PinEntry.createEmpty(4)
+        val newPinEntry = pinEntry.clear()
+        assertThat(newPinEntry.isEmpty()).isTrue()
+        assertThat(newPinEntry.isComplete()).isFalse()
+        newPinEntry.assertText("")
+    }
+
+    @Test
+    fun `when using deleteLast ensure pin correct`() {
+        val pinEntry = PinEntry.createEmpty(4)
+        val newPinEntry = pinEntry.fillWith("1234").deleteLast()
+        newPinEntry.assertText("123")
+    }
+
+    @Test
+    fun `when using deleteLast with empty pin ensure pin is empty`() {
+        val pinEntry = PinEntry.createEmpty(4)
+        val newPinEntry = pinEntry.deleteLast()
+        assertThat(newPinEntry.isEmpty()).isTrue()
+    }
+
+    @Test
+    fun `when using addDigit with complete pin ensure pin is complete`() {
+        val pinEntry = PinEntry.createEmpty(4)
+        val newPinEntry = pinEntry
+            .addDigit('1')
+            .addDigit('2')
+            .addDigit('3')
+            .addDigit('4')
+            .addDigit('5')
+        assertThat(newPinEntry.isComplete()).isTrue()
+        newPinEntry.assertText("1234")
+    }
+}