tests: Add test for TWRenderer.paragraph.

* tests/data/renderer-paragraphs-w.md: New file.
* tests/data/renderer-paragraphs.md: New file.
* tests/test_md_tw.py (TestTWRenderer)[test_render_paragraph]: Test
for TWRenderer.paragraph.
[setup, teardown]: Update methods.
[_write_tmp, _get, _md, _validate]: New methods.

2 files changed, 43 insertions, 0 deletions

diff --git a/tests/data/renderer-paragraphs-w.md b/tests/data/renderer-paragraphs-w.md
new file mode 100644
index 0000000..c2078bd
--- /dev/null
+++ b/tests/data/renderer-paragraphs-w.md
@@ -0,0 +1,25 @@
+He used to say that there are only two sources of human vice—idleness
+and superstition, and only two virtues—activity and intelligence. He
+himself undertook his daughter's education, and to develop these two
+cardinal virtues in her gave her lessons in algebra and geometry till
+she was twenty, and arranged her life so that her whole time was
+occupied. He was himself always occupied: writing his memoirs, solving
+problems in higher mathematics, turning snuffboxes on a lathe, working
+in the garden, or superintending the building that was always going on
+at his estate.
+
+“Mere mobs!” repeated his new friend with a snort of scorn. “So you talk
+about mobs and the working classes as if they were the question. You’ve
+got that eternal idiotic idea that if anarchy came it would come from
+the poor. Why should it? The poor have been rebels, but they have never
+been anarchists; they have more interest than anyone else in there being
+some decent government. The poor man really has a stake in the country.
+The rich man hasn’t; he can go away to New Guinea in a yacht. The poor
+have sometimes objected to being governed badly; the rich have always
+objected to being governed at all. Aristocrats were always anarchists,
+as you can see from the barons’ wars.”
+
+Thanking You in Advance. This sounds as if the writer meant, "It will
+not be worth my while to write to you again." In making your request,
+write, "Will you please," or "I shall be obliged," and if anything
+further seems necessary write a letter of acknowledgment later.
diff --git a/tests/data/renderer-paragraphs.md b/tests/data/renderer-paragraphs.md
new file mode 100644
index 0000000..e809160
--- /dev/null
+++ b/tests/data/renderer-paragraphs.md
@@ -0,0 +1,18 @@
+He used to say that there are only two sources of human vice—idleness and superstition, and only two
+virtues—activity and intelligence. He himself undertook his daughter's education, and to develop
+these two cardinal virtues in her gave her lessons in algebra and geometry till she was twenty, and
+arranged her life so that her whole time was occupied. He was himself always occupied: writing his
+memoirs, solving problems in higher mathematics, turning snuffboxes on a lathe, working in the
+garden, or superintending the building that was always going on at his estate.
+
+“Mere mobs!” repeated his new friend with a snort of scorn. “So you talk about mobs and the working
+classes as if they were the question. You’ve got that eternal idiotic idea that if anarchy came it
+would come from the poor. Why should it? The poor have been rebels, but they have never been
+anarchists; they have more interest than anyone else in there being some decent government. The poor
+man really has a stake in the country.  The rich man hasn’t; he can go away to New Guinea in a
+yacht. The poor have sometimes objected to being governed badly; the rich have always objected to
+being governed at all. Aristocrats were always anarchists, as you can see from the barons’ wars.”
+
+Thanking You in Advance. This sounds as if the writer meant, "It will not be worth my while to write
+to you again." In making your request, write, "Will you please," or "I shall be obliged," and if
+anything further seems necessary write a letter of acknowledgment later.