Add test

Author: termoshtt

tests/inner.rs

@@ -0,0 +1,26 @@
+use ndarray::*;
+use ndarray_linalg::*;
+
+#[should_panic]
+#[test]
+fn size_shoter() {
+    let a: Array1<f32> = Array::zeros(3);
+    let b = Array::zeros(4);
+    a.inner(&b);
+}
+
+#[should_panic]
+#[test]
+fn size_longer() {
+    let a: Array1<f32> = Array::zeros(3);
+    let b = Array::zeros(4);
+    b.inner(&a);
+}
+
+#[test]
+fn abs() {
+    let a: Array1<c32> = random(1);
+    let aa = a.inner(&a);
+    assert_aclose!(aa.re(), a.norm().powi(2), 1e-5);
+    assert_aclose!(aa.im(), 0.0, 1e-5);
+}