Calculator editor

calculatorpp-core/src/test/java/org/solovyev/android/calculator/CalculatorEditorImplTest.java

@@ -0,0 +1,200 @@
+package org.solovyev.android.calculator;
+
+import junit.framework.Assert;
+import org.jetbrains.annotations.NotNull;
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * User: Solovyev_S
+ * Date: 21.09.12
+ * Time: 12:44
+ */
+public class CalculatorEditorImplTest {
+
+    @NotNull
+    private CalculatorEditor calculatorEditor;
+
+    @Before
+    public void setUp() throws Exception {
+        this.calculatorEditor = new CalculatorEditorImpl(new CalculatorImpl());
+    }
+
+    @Test
+    public void testInsert() throws Exception {
+        CalculatorEditorViewState viewState = this.calculatorEditor.getViewState();
+
+        Assert.assertEquals("", viewState.getText());
+        Assert.assertEquals(0, viewState.getSelection());
+
+        viewState = this.calculatorEditor.insert("");
+
+        Assert.assertEquals("", viewState.getText());
+        Assert.assertEquals(0, viewState.getSelection());
+
+        viewState = this.calculatorEditor.insert("test");
+
+        Assert.assertEquals("test", viewState.getText());
+        Assert.assertEquals(4, viewState.getSelection());
+
+        viewState = this.calculatorEditor.insert("test");
+        Assert.assertEquals("testtest", viewState.getText());
+        Assert.assertEquals(8, viewState.getSelection());
+
+        viewState = this.calculatorEditor.insert("");
+        Assert.assertEquals("testtest", viewState.getText());
+        Assert.assertEquals(8, viewState.getSelection());
+
+        viewState = this.calculatorEditor.insert("1234567890");
+        Assert.assertEquals("testtest1234567890", viewState.getText());
+        Assert.assertEquals(18, viewState.getSelection());
+
+        viewState = this.calculatorEditor.moveCursorLeft();
+        viewState = this.calculatorEditor.insert("9");
+        Assert.assertEquals("testtest12345678990", viewState.getText());
+        Assert.assertEquals(18, viewState.getSelection());
+
+        viewState = this.calculatorEditor.setCursorOnStart();
+        viewState = this.calculatorEditor.insert("9");
+        Assert.assertEquals("9testtest12345678990", viewState.getText());
+        Assert.assertEquals(1, viewState.getSelection());
+
+        viewState = this.calculatorEditor.erase();
+        viewState = this.calculatorEditor.insert("9");
+        Assert.assertEquals("9testtest12345678990", viewState.getText());
+        Assert.assertEquals(1, viewState.getSelection());
+    }
+
+    @Test
+    public void testErase() throws Exception {
+        this.calculatorEditor.setText("");
+        this.calculatorEditor.erase();
+
+        Assert.assertEquals("", this.calculatorEditor.getViewState().getText());
+
+        this.calculatorEditor.setText("test");
+        this.calculatorEditor.erase();
+        Assert.assertEquals("tes", this.calculatorEditor.getViewState().getText());
+
+        this.calculatorEditor.erase();
+        Assert.assertEquals("te", this.calculatorEditor.getViewState().getText());
+
+        this.calculatorEditor.erase();
+        Assert.assertEquals("t", this.calculatorEditor.getViewState().getText());
+
+        this.calculatorEditor.erase();
+        Assert.assertEquals("", this.calculatorEditor.getViewState().getText());
+
+        this.calculatorEditor.erase();
+        Assert.assertEquals("", this.calculatorEditor.getViewState().getText());
+
+        this.calculatorEditor.setText("1234");
+        this.calculatorEditor.moveCursorLeft();
+        this.calculatorEditor.erase();
+        Assert.assertEquals("124", this.calculatorEditor.getViewState().getText());
+
+        this.calculatorEditor.erase();
+        Assert.assertEquals("14", this.calculatorEditor.getViewState().getText());
+
+        this.calculatorEditor.erase();
+        Assert.assertEquals("4", this.calculatorEditor.getViewState().getText());
+
+        this.calculatorEditor.setText("1");
+        this.calculatorEditor.moveCursorLeft();
+        this.calculatorEditor.erase();
+        Assert.assertEquals("1", this.calculatorEditor.getViewState().getText());
+    }
+
+    @Test
+    public void testMoveSelection() throws Exception {
+        this.calculatorEditor.setText("");
+
+        CalculatorEditorViewState viewState = this.calculatorEditor.moveSelection(0);
+        Assert.assertEquals(0, viewState.getSelection());
+
+        viewState = this.calculatorEditor.moveSelection(2);
+        Assert.assertEquals(0, viewState.getSelection());
+
+        viewState = this.calculatorEditor.moveSelection(100);
+        Assert.assertEquals(0, viewState.getSelection());
+
+        viewState = this.calculatorEditor.moveSelection(-3);
+        Assert.assertEquals(0, viewState.getSelection());
+
+        viewState = this.calculatorEditor.moveSelection(-100);
+        Assert.assertEquals(0, viewState.getSelection());
+
+        viewState =  this.calculatorEditor.setText("0123456789");
+
+        viewState = this.calculatorEditor.moveSelection(0);
+        Assert.assertEquals(10, viewState.getSelection());
+
+        viewState = this.calculatorEditor.moveSelection(1);
+        Assert.assertEquals(10, viewState.getSelection());
+
+        viewState = this.calculatorEditor.moveSelection(-2);
+        Assert.assertEquals(8, viewState.getSelection());
+
+        viewState = this.calculatorEditor.moveSelection(1);
+        Assert.assertEquals(9, viewState.getSelection());
+
+        viewState = this.calculatorEditor.moveSelection(-9);
+        Assert.assertEquals(0, viewState.getSelection());
+
+        viewState = this.calculatorEditor.moveSelection(-10);
+        Assert.assertEquals(0, viewState.getSelection());
+
+        viewState = this.calculatorEditor.moveSelection(2);
+        Assert.assertEquals(2, viewState.getSelection());
+
+        viewState = this.calculatorEditor.moveSelection(2);
+        Assert.assertEquals(4, viewState.getSelection());
+
+        viewState = this.calculatorEditor.moveSelection(-6);
+        Assert.assertEquals(0, viewState.getSelection());
+    }
+
+    @Test
+    public void testSetText() throws Exception {
+        CalculatorEditorViewState viewState = this.calculatorEditor.setText("test");
+
+        Assert.assertEquals("test", viewState.getText());
+        Assert.assertEquals(4, viewState.getSelection());
+
+        viewState = this.calculatorEditor.setText("testtest");
+        Assert.assertEquals("testtest", viewState.getText());
+        Assert.assertEquals(8, viewState.getSelection());
+
+        viewState = this.calculatorEditor.setText("");
+        Assert.assertEquals("", viewState.getText());
+        Assert.assertEquals(0, viewState.getSelection());
+
+        viewState = this.calculatorEditor.setText("testtest", 0);
+        Assert.assertEquals("testtest", viewState.getText());
+        Assert.assertEquals(0, viewState.getSelection());
+
+        viewState = this.calculatorEditor.setText("testtest", 2);
+        Assert.assertEquals("testtest", viewState.getText());
+        Assert.assertEquals(2, viewState.getSelection());
+
+        viewState = this.calculatorEditor.setText("", 0);
+        Assert.assertEquals("", viewState.getText());
+        Assert.assertEquals(0, viewState.getSelection());
+
+        viewState = this.calculatorEditor.setText("", 3);
+        Assert.assertEquals("", viewState.getText());
+        Assert.assertEquals(0, viewState.getSelection());
+
+        viewState = this.calculatorEditor.setText("", -3);
+        Assert.assertEquals("", viewState.getText());
+        Assert.assertEquals(0, viewState.getSelection());
+
+        viewState = this.calculatorEditor.setText("test");
+        Assert.assertEquals("test", viewState.getText());
+        Assert.assertEquals(4, viewState.getSelection());
+
+        viewState = this.calculatorEditor.setText("", 2);
+        Assert.assertEquals("", viewState.getText());
+        Assert.assertEquals(0, viewState.getSelection());
+    }
+}