Add tests for Strings (#295)

gliptak · jbgi · commit e6abe86c7527 · 2016-09-15T20:13:03.000+02:00
diff --git a/core/src/test/java/fj/function/StringsTest.java b/core/src/test/java/fj/function/StringsTest.java
@@ -0,0 +1,67 @@
+package fj.function;
+
+import fj.Function;
+import org.junit.Test;
+
+import static fj.F1Functions.o;
+import static fj.Function.compose;
+import static fj.function.Strings.*;
+import static org.junit.Assert.*;
+import static org.hamcrest.core.Is.is;
+
+public class StringsTest {
+    @Test
+    public void testLines() {
+        assertThat(compose(unlines(), lines()).f("one two three"), is("one two three"));
+    }
+
+    @Test
+    public void testLinesEmpty() {
+        assertThat(o(unlines(), lines()).f(""), is(""));
+    }
+
+    @Test
+    public void testLength() {
+        assertThat(length.f("functionaljava"), is(14));
+    }
+
+    @Test
+    public void testMatches() {
+        assertThat(matches.f("foo").f("foo"), is(true));
+    }
+
+    @Test
+    public void testContains() {
+        assertThat(contains.f("bar").f("foobar1"), is(true));
+    }
+
+    @Test(expected = NullPointerException.class)
+    public void testIsEmptyException() {
+        assertThat(isEmpty.f(null), is(true));
+    }
+
+    @Test
+    public void testIsEmpty() {
+        assertThat(isEmpty.f(""), is(true));
+    }
+
+    @Test
+    public void testIsNotNullOrEmpty() {
+        assertThat(isNotNullOrEmpty.f("foo"), is(true));
+    }
+
+    @Test
+    public void testIsNullOrEmpty() {
+        assertThat(isNullOrEmpty.f(null), is(true));
+    }
+
+    @Test
+    public void testIsNotNullOrBlank() {
+        assertThat(isNotNullOrBlank.f("foo"), is(true));
+    }
+
+    @Test
+    public void testIsNullOrBlank() {
+        assertThat(isNullOrBlank.f("  "), is(true));
+    }
+}
