Add homework#1(Astapov)

src/test/java/ru/odnoklassniki/homework/TestgenerateIntSequence.java

@@ -0,0 +1,68 @@
+package ru.odnoklassniki.stringSorter;
+
+import org.junit.Assert;
+import org.junit.Test;
+import ru.odnoklassniki.ClassToBeTested;
+
+import java.util.List;
+
+import static org.hamcrest.Matchers.allOf;
+import static org.hamcrest.Matchers.equalTo;
+import static org.hamcrest.Matchers.hasItem;
+import static org.hamcrest.Matchers.hasSize;
+
+/**
+ * Created by Ruslan Astapov on 4/15/18 at 8:53 AM
+ */
+public class TestStringSorter {
+
+    @Test
+    public void testCorrectly() throws Exception {
+        final int s1 = 5;
+        final int s2 = 6;
+        final List<Integer> sorted = ClassToBeTested.generateIntSequence(s1, s2);
+
+        Assert.assertNotNull(sorted);
+        Assert.assertEquals(6, sorted.size());
+        Assert.assertEquals(5,(int)  sorted.get(0));
+        Assert.assertEquals(6, (int) sorted.get(1));
+        Assert.assertEquals(7, (int) sorted.get(2));
+        Assert.assertEquals(8, (int) sorted.get(3));
+        Assert.assertEquals(9, (int) sorted.get(4));
+        Assert.assertEquals(10, (int) sorted.get(5));
+    }
+
+    @Test
+    public void testReturnedInResponse() throws Exception{
+        final int s1 = 0;
+        final int s2 = 1;
+        final List<Integer> sorted = ClassToBeTested.generateIntSequence(s1, s2);
+
+        Assert.assertThat(
+                "В ответе неправильное количество элементов",
+                sorted,
+                hasSize(equalTo(1))
+        );
+    }
+
+    @Test
+    public void testIfSecondIsZeroExceptionIsThrown() throws Exception {
+        try {
+            ClassToBeTested.generateIntSequence(24,0);
+            Assert.fail("Method did not throw exception when itemsCount was 0");
+        } catch (IllegalArgumentException e) {
+            Assert.assertEquals("itemsCount must be greater than 0", e.getMessage());
+        }
+    }
+
+    @Test
+    public void testIfFinishIsMaxExceptionIsThrown() throws Exception {
+        try {
+            ClassToBeTested.generateIntSequence(2147483647,5);
+            Assert.fail("Method did not throw exception when finishNumber was more than Integer.MAX_VALUE");
+        } catch (IllegalArgumentException e) {
+            Assert.assertEquals("can't generate an int greater than integer's max value", e.getMessage());
+        }
+    }
+
+}