more-test

sympy/series/tests/test_series.py

@@ -1,5 +1,5 @@
 from sympy import sin, cos, exp, E, series, oo, S, Derivative, O, Integral, \
-    Function, PoleError, log, sqrt, N, Symbol, Subs, pi, symbols, atan, LambertW, Rational
+    Function, PoleError, log, sqrt, N, Symbol, Subs, pi, symbols, atan, LambertW, Rational, tan, cot, sec, cosec
 from sympy.abc import x, y, n, k
 from sympy.testing.pytest import raises
 from sympy.series.gruntz import calculate_series
@@ -17,6 +17,30 @@ def test_cos():
     assert e1 == e2
 
 
+def test_tan():
+    e1 = tan(x).series(x, 0)
+    e2 = series(tan(x), x, 0)
+    assert e1 == e2
+
+
+def test_cot():
+    e1 = cot(x).series(x, 0)
+    e2 = series(cot(x), x, 0)
+    assert e1 == e2
+
+
+def test_sec():
+    e1 = sec(x).series(x, 0)
+    e2 = series(sec(x), x, 0)
+    assert e1 == e2
+
+
+def test_cosec():
+    e1 = cosec(x).series(x, 0)
+    e2 = series(cosec(x), x, 0)
+    assert e1 == e2
+
+
 def test_exp():
     e1 = exp(x).series(x, 0)
     e2 = series(exp(x), x, 0)
@@ -29,6 +53,36 @@ def test_exp2():
     assert e1 == e2
 
 
+def test_exp3():
+    e1 = exp(sin(x)).series(x, 0)
+    e2 = series(exp(sin(x)), x, 0)
+    assert e1 == e2
+
+
+def test_exp4():
+    e1 = exp(tan(x)).series(x, 0)
+    e2 = series(exp(tan(x)), x, 0)
+    assert e1 == e2
+
+
+def test_exp5():
+    e1 = exp(cot(x)).series(x, 0)
+    e2 = series(exp(cot(x)), x, 0)
+    assert e1 == e2
+
+
+def test_exp6():
+    e1 = exp(sec(x)).series(x, 0)
+    e2 = series(exp(sec(x)), x, 0)
+    assert e1 == e2
+
+
+def test_exp7():
+    e1 = exp(cosec(x)).series(x, 0)
+    e2 = series(exp(cosec(x)), x, 0)
+    assert e1 == e2
+
+
 def test_issue_5223():
     assert series(1, x) == 1
     assert next(S.Zero.lseries(x)) == 0