postfix functions

src/test/java/org/solovyev/android/calculator/ToJsclPreprocessorTest.java

@@ -0,0 +1,44 @@
+package org.solovyev.android.calculator;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * User: serso
+ * Date: 9/26/11
+ * Time: 12:13 PM
+ */
+public class ToJsclPreprocessorTest {
+
+	@Test
+	public void testProcess() throws Exception {
+		final ToJsclPreprocessor preprocessor = new ToJsclPreprocessor();
+
+		Assert.assertEquals( "sin(4)*cos(5)", preprocessor.process("sin(4)cos(5)"));
+		Assert.assertEquals( "pi*sin(4)*pi*cos(sqrt(5))", preprocessor.process("πsin(4)πcos(√(5))"));
+		Assert.assertEquals( "pi*sin(4)+pi*cos(sqrt(5))", preprocessor.process("πsin(4)+πcos(√(5))"));
+		Assert.assertEquals( "pi*sin(4)+pi*cos(sqrt(5+sqrt(-1)))", preprocessor.process("πsin(4)+πcos(√(5+i))"));
+		Assert.assertEquals( "pi*sin(4.01)+pi*cos(sqrt(5+sqrt(-1)))", preprocessor.process("πsin(4.01)+πcos(√(5+i))"));
+		Assert.assertEquals( "exp(1)^pi*sin(4.01)+pi*cos(sqrt(5+sqrt(-1)))", preprocessor.process("e^πsin(4.01)+πcos(√(5+i))"));
+	}
+
+	@Test
+	public void testPostfixFunctionsProcessing() throws Exception {
+		final ToJsclPreprocessor preprocessor = new ToJsclPreprocessor();
+
+		Assert.assertEquals(-1, preprocessor.getPostfixFunctionStart("5!", 0));
+		Assert.assertEquals(0, preprocessor.getPostfixFunctionStart("!", 0));
+		Assert.assertEquals(-1, preprocessor.getPostfixFunctionStart("5.4434234!", 8));
+		Assert.assertEquals(1, preprocessor.getPostfixFunctionStart("2+5!", 2));
+		Assert.assertEquals(4, preprocessor.getPostfixFunctionStart("2.23+5.4434234!", 13));
+		Assert.assertEquals(14, preprocessor.getPostfixFunctionStart("2.23+5.4434234*5!", 15));
+		Assert.assertEquals(14, preprocessor.getPostfixFunctionStart("2.23+5.4434234*5.1!", 17));
+		Assert.assertEquals(4, preprocessor.getPostfixFunctionStart("2.23+(5.4434234*5.1)!", 19));
+		Assert.assertEquals(4, preprocessor.getPostfixFunctionStart("2.23+(5.4434234*(5.1+1))!", 23));
+		Assert.assertEquals(4, preprocessor.getPostfixFunctionStart("2.23+(5.4434234*sin(5.1+1))!", 26));
+		Assert.assertEquals(0, preprocessor.getPostfixFunctionStart("sin(5)!", 5));
+		Assert.assertEquals(0, preprocessor.getPostfixFunctionStart("sin(5sin(5sin(5)))!", 17));
+		Assert.assertEquals(1, preprocessor.getPostfixFunctionStart("2+sin(5sin(5sin(5)))!", 19));
+		Assert.assertEquals(4, preprocessor.getPostfixFunctionStart("2.23+sin(5.4434234*sin(5.1+1))!", 29));
+	}
+}