From e4f1c09672068e4778f7b5f3e27b47ff8986863c Mon Sep 17 00:00:00 2001
From: Mario Mulansky <mario.mulansky@gmx.net>
Date: Mon, 29 Sep 2014 12:55:56 +0200
Subject: +mul_scalar, tests restructured and cosmetics

---
 test/test_function.py | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

(limited to 'test')

diff --git a/test/test_function.py b/test/test_function.py
index 014ecac..7420011 100644
--- a/test/test_function.py
+++ b/test/test_function.py
@@ -29,6 +29,13 @@ def test_pwc():
     assert_almost_equal(f.abs_avrg(), (1.0+0.5+0.5*1.5+1.5*0.75)/4.0,
                         decimal=16)
 
+
+def test_pwc_add():
+    # some random data
+    x = [0.0, 1.0, 2.0, 2.5, 4.0]
+    y = [1.0, -0.5, 1.5, 0.75]
+    f = spk.PieceWiseConstFunc(x, y)
+
     f1 = copy(f)
     x = [0.0, 0.75, 2.0, 2.5, 2.7, 4.0]
     y = [0.5, 1.0, -0.25, 0.0, 1.5]
@@ -48,6 +55,17 @@ def test_pwc():
     assert_array_almost_equal(f1.x, f2.x, decimal=16)
     assert_array_almost_equal(f1.y, 2*f2.y, decimal=16)
 
+def test_pwc_mul():
+    x = [0.0, 1.0, 2.0, 2.5, 4.0]
+    y = [1.0, -0.5, 1.5, 0.75]
+    f = spk.PieceWiseConstFunc(x, y)
+    
+    f.mul_scalar(1.5)
+    assert_array_almost_equal(f.x, x, decimal=16)
+    assert_array_almost_equal(f.y, 1.5*np.array(y), decimal=16)
+    f.mul_scalar(1.0/5.0)
+    assert_array_almost_equal(f.y, 1.5/5.0*np.array(y), decimal=16)
+
 
 def test_pwl():
     x = [0.0, 1.0, 2.0, 2.5, 4.0]
@@ -67,6 +85,13 @@ def test_pwl():
     abs_avrg_expected = (1.25 + 0.45 + 0.75 + 1.5*0.5) / 4.0
     assert_almost_equal(f.abs_avrg(), abs_avrg_expected, decimal=16)
 
+
+def test_pwl_add():
+    x = [0.0, 1.0, 2.0, 2.5, 4.0]
+    y1 = [1.0, -0.5, 1.5, 0.75]
+    y2 = [1.5, -0.4, 1.5, 0.25]
+    f = spk.PieceWiseLinFunc(x, y1, y2)
+
     f1 = copy(f)
     x = [0.0, 0.75, 2.0, 2.5, 2.7, 4.0]
     y1 = [0.5, 1.0, -0.25, 0.0, 1.5]
@@ -94,5 +119,19 @@ def test_pwl():
     assert_array_almost_equal(f1.y2, 2*f2.y2, decimal=16)
 
 
+def test_pwc_mul():
+    x = [0.0, 1.0, 2.0, 2.5, 4.0]
+    y1 = [1.0, -0.5, 1.5, 0.75]
+    y2 = [1.5, -0.4, 1.5, 0.25]
+    f = spk.PieceWiseLinFunc(x, y1, y2)
+    
+    f.mul_scalar(1.5)
+    assert_array_almost_equal(f.x, x, decimal=16)
+    assert_array_almost_equal(f.y1, 1.5*np.array(y1), decimal=16)
+    assert_array_almost_equal(f.y2, 1.5*np.array(y2), decimal=16)
+    f.mul_scalar(1.0/5.0)
+    assert_array_almost_equal(f.y1, 1.5/5.0*np.array(y1), decimal=16)
+    assert_array_almost_equal(f.y2, 1.5/5.0*np.array(y2), decimal=16)
+
 if __name__ == "__main__":
     test_pwc()
-- 
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