From 326d163db029515c338a963978a5d95948f78c29 Mon Sep 17 00:00:00 2001
From: Slasnista <stan.chambon@gmail.com>
Date: Wed, 23 Aug 2017 14:11:13 +0200
Subject: test functions for MappingTransport Class

---
 test/test_da.py | 117 +++++++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 112 insertions(+), 5 deletions(-)

(limited to 'test/test_da.py')

diff --git a/test/test_da.py b/test/test_da.py
index 196f4c4..162f681 100644
--- a/test/test_da.py
+++ b/test/test_da.py
@@ -264,6 +264,112 @@ def test_emd_transport_class():
     assert n_unsup != n_semisup, "semisupervised mode not working"
 
 
+def test_mapping_transport_class():
+    """test_mapping_transport
+    """
+
+    ns = 150
+    nt = 200
+
+    Xs, ys = get_data_classif('3gauss', ns)
+    Xt, yt = get_data_classif('3gauss2', nt)
+    Xs_new, _ = get_data_classif('3gauss', ns + 1)
+
+    ##########################################################################
+    # kernel == linear mapping tests
+    ##########################################################################
+
+    # check computation and dimensions if bias == False
+    clf = ot.da.MappingTransport(kernel="linear", bias=False)
+    clf.fit(Xs=Xs, Xt=Xt)
+
+    assert_equal(clf.coupling_.shape, ((Xs.shape[0], Xt.shape[0])))
+    assert_equal(clf.mapping_.shape, ((Xs.shape[1], Xt.shape[1])))
+
+    # test margin constraints
+    mu_s = unif(ns)
+    mu_t = unif(nt)
+    assert_allclose(np.sum(clf.coupling_, axis=0), mu_t, rtol=1e-3, atol=1e-3)
+    assert_allclose(np.sum(clf.coupling_, axis=1), mu_s, rtol=1e-3, atol=1e-3)
+
+    # test transform
+    transp_Xs = clf.transform(Xs=Xs)
+    assert_equal(transp_Xs.shape, Xs.shape)
+
+    transp_Xs_new = clf.transform(Xs_new)
+
+    # check that the oos method is working
+    assert_equal(transp_Xs_new.shape, Xs_new.shape)
+
+    # check computation and dimensions if bias == True
+    clf = ot.da.MappingTransport(kernel="linear", bias=True)
+    clf.fit(Xs=Xs, Xt=Xt)
+    assert_equal(clf.coupling_.shape, ((Xs.shape[0], Xt.shape[0])))
+    assert_equal(clf.mapping_.shape, ((Xs.shape[1] + 1, Xt.shape[1])))
+
+    # test margin constraints
+    mu_s = unif(ns)
+    mu_t = unif(nt)
+    assert_allclose(np.sum(clf.coupling_, axis=0), mu_t, rtol=1e-3, atol=1e-3)
+    assert_allclose(np.sum(clf.coupling_, axis=1), mu_s, rtol=1e-3, atol=1e-3)
+
+    # test transform
+    transp_Xs = clf.transform(Xs=Xs)
+    assert_equal(transp_Xs.shape, Xs.shape)
+
+    transp_Xs_new = clf.transform(Xs_new)
+
+    # check that the oos method is working
+    assert_equal(transp_Xs_new.shape, Xs_new.shape)
+
+    ##########################################################################
+    # kernel == gaussian mapping tests
+    ##########################################################################
+
+    # check computation and dimensions if bias == False
+    clf = ot.da.MappingTransport(kernel="gaussian", bias=False)
+    clf.fit(Xs=Xs, Xt=Xt)
+
+    assert_equal(clf.coupling_.shape, ((Xs.shape[0], Xt.shape[0])))
+    assert_equal(clf.mapping_.shape, ((Xs.shape[0], Xt.shape[1])))
+
+    # test margin constraints
+    mu_s = unif(ns)
+    mu_t = unif(nt)
+    assert_allclose(np.sum(clf.coupling_, axis=0), mu_t, rtol=1e-3, atol=1e-3)
+    assert_allclose(np.sum(clf.coupling_, axis=1), mu_s, rtol=1e-3, atol=1e-3)
+
+    # test transform
+    transp_Xs = clf.transform(Xs=Xs)
+    assert_equal(transp_Xs.shape, Xs.shape)
+
+    transp_Xs_new = clf.transform(Xs_new)
+
+    # check that the oos method is working
+    assert_equal(transp_Xs_new.shape, Xs_new.shape)
+
+    # check computation and dimensions if bias == True
+    clf = ot.da.MappingTransport(kernel="gaussian", bias=True)
+    clf.fit(Xs=Xs, Xt=Xt)
+    assert_equal(clf.coupling_.shape, ((Xs.shape[0], Xt.shape[0])))
+    assert_equal(clf.mapping_.shape, ((Xs.shape[0] + 1, Xt.shape[1])))
+
+    # test margin constraints
+    mu_s = unif(ns)
+    mu_t = unif(nt)
+    assert_allclose(np.sum(clf.coupling_, axis=0), mu_t, rtol=1e-3, atol=1e-3)
+    assert_allclose(np.sum(clf.coupling_, axis=1), mu_s, rtol=1e-3, atol=1e-3)
+
+    # test transform
+    transp_Xs = clf.transform(Xs=Xs)
+    assert_equal(transp_Xs.shape, Xs.shape)
+
+    transp_Xs_new = clf.transform(Xs_new)
+
+    # check that the oos method is working
+    assert_equal(transp_Xs_new.shape, Xs_new.shape)
+
+
 def test_otda():
 
     n_samples = 150  # nb samples
@@ -326,9 +432,10 @@ def test_otda():
     da_emd.predict(xs)    # interpolation of source samples
 
 
-# if __name__ == "__main__":
+if __name__ == "__main__":
 
-#     test_sinkhorn_transport_class()
-#     test_emd_transport_class()
-#     test_sinkhorn_l1l2_transport_class()
-#     test_sinkhorn_lpl1_transport_class()
+    # test_sinkhorn_transport_class()
+    # test_emd_transport_class()
+    # test_sinkhorn_l1l2_transport_class()
+    # test_sinkhorn_lpl1_transport_class()
+    test_mapping_transport_class()
-- 
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