move some tests into specific directories

test/api/test_api.py

@@ -0,0 +1,52 @@
+"""
+Test all things related to the ``jedi.api`` module.
+"""
+
+from jedi import api
+from pytest import raises
+
+
+def test_preload_modules():
+    def check_loaded(*modules):
+        # +1 for None module (currently used)
+        assert len(parser_cache) == len(modules) + 1
+        for i in modules:
+            assert [i in k for k in parser_cache.keys() if k is not None]
+
+    from jedi import cache
+    temp_cache, cache.parser_cache = cache.parser_cache, {}
+    parser_cache = cache.parser_cache
+
+    api.preload_module('sys')
+    check_loaded()  # compiled (c_builtin) modules shouldn't be in the cache.
+    api.preload_module('json', 'token')
+    check_loaded('json', 'token')
+
+    cache.parser_cache = temp_cache
+
+
+def test_empty_script():
+    assert api.Script('')
+
+
+def test_line_number_errors():
+    """
+    Script should raise a ValueError if line/column numbers are not in a
+    valid range.
+    """
+    s = 'hello'
+    # lines
+    with raises(ValueError):
+        api.Script(s, 2, 0)
+    with raises(ValueError):
+        api.Script(s, 0, 0)
+
+    # columns
+    with raises(ValueError):
+        api.Script(s, 1, len(s) + 1)
+    with raises(ValueError):
+        api.Script(s, 1, -1)
+
+    # ok
+    api.Script(s, 1, 0)
+    api.Script(s, 1, len(s))