tests: Implement mock weechat module and add some color tests.

Makefile

@@ -1,7 +1,8 @@
-.PHONY: install install-lib phony
+.PHONY: install install-lib phony test
 
 WEECHAT_HOME ?= $(HOME)/.weechat
 PREFIX ?= $(WEECHAT_HOME)
+PYTHON ?= python
 
 lib := $(patsubst matrix/%.py, $(DESTDIR)$(PREFIX)/python/matrix/%.py, \
 	 $(wildcard matrix/*.py))
@@ -15,3 +16,6 @@ phony:
 
 $(DESTDIR)$(PREFIX)/python/matrix/%.py: matrix/%.py phony
 	install -Dm644 $< $@
+
+test:
+	$(PYTHON) -m pytest

matrix/_weechat.py

@@ -0,0 +1,93 @@
+def color(color_name):
+    # type: (str) -> str
+    # yapf: disable
+    weechat_base_colors = {
+        "black":        "0",
+        "red":          "1",
+        "green":        "2",
+        "brown":        "3",
+        "blue":         "4",
+        "magenta":      "5",
+        "cyan":         "6",
+        "default":      "7",
+        "gray":         "8",
+        "lightred":     "9",
+        "lightgreen":   "10",
+        "yellow":       "11",
+        "lightblue":    "12",
+        "lightmagenta": "13",
+        "lightcyan":    "14",
+        "white":        "15"
+    }
+
+    escape_codes = []
+    reset_code = "0"
+
+    def make_fg_color(color):
+        return "38;5;{}".format(color)
+
+    def make_bg_color(color):
+        return "48;5;{}".format(color)
+
+    attributes = {
+        "bold":       "1",
+        "-bold":      "21",
+        "reverse":    "27",
+        "-reverse":   "21",
+        "italic":     "3",
+        "-italic":    "23",
+        "underline":  "4",
+        "-underline": "24",
+        "reset":      "0",
+        "resetcolor": "39"
+    }
+
+    short_attributes = {
+        "*": "1",
+        "!": "27",
+        "/": "3",
+        "_": "4"
+    }
+
+    colors = color_name.split(",", 2)
+
+    fg_color = colors.pop(0)
+
+    bg_color = colors.pop(0) if colors else ""
+
+    if fg_color in attributes:
+        escape_codes.append(attributes[fg_color])
+    else:
+        chars = list(fg_color)
+
+        for char in chars:
+            if char in short_attributes:
+                escape_codes.append(short_attributes[char])
+            elif char == "|":
+                reset_code = ""
+            else:
+                break
+
+        stripped_color = fg_color.lstrip("*_|/!")
+
+        if stripped_color in weechat_base_colors:
+            escape_codes.append(
+                make_fg_color(weechat_base_colors[stripped_color]))
+
+        elif stripped_color.isdecimal():
+            num_color = int(stripped_color)
+            if num_color >= 0 and num_color < 256:
+                escape_codes.append(make_fg_color(stripped_color))
+
+
+    if bg_color in weechat_base_colors:
+        escape_codes.append(make_bg_color(weechat_base_colors[bg_color]))
+    else:
+        if bg_color.isdecimal():
+            num_color = int(bg_color)
+            if num_color >= 0 and num_color < 256:
+                escape_codes.append(make_bg_color(bg_color))
+
+    escape_string = "\033[{}{}m".format(reset_code, ";".join(escape_codes))
+
+    return escape_string

matrix/colors.py

@@ -542,6 +542,7 @@ def colour_find_rgb(r, g, b):
 
 def color_html_to_weechat(color):
     # type: (str) -> str
+    # yapf: disable
     first_16 = {
         (0, 0, 0): "black",             # 0
         (128, 0, 0): "red",             # 1
@@ -553,12 +554,14 @@ def color_html_to_weechat(color):
         (192, 192, 192): "default",     # 7
         (128, 128, 128): "gray",        # 8
         (255, 0, 0): "lightred",        # 9
-        (0, 255, 0): "lightgreen",  # 11
-        (255, 255, 0): "yellow",  # 12
-        (0, 0, 255): "lightblue",  # 13
-        (255, 0, 255): "lightmagenta",  # 14
-        (0, 255, 255): "lightcyan",  # 15
+        (0, 255, 0): "lightgreen",      # 10
+        (255, 255, 0): "yellow",        # 11
+        (0, 0, 255): "lightblue",       # 12
+        (255, 0, 255): "lightmagenta",  # 13
+        (0, 255, 255): "lightcyan",     # 14
+        (255, 255, 255): "white",       # 15
     }
+    # yapf: enable
 
     try:
         rgb_color = webcolors.html5_parse_legacy_color(color)
@@ -573,6 +576,7 @@ def color_html_to_weechat(color):
 
 def color_weechat_to_html(color):
     # type: (str) -> str
+    # yapf: disable
     first_16 = {
         "black": "black",           # 0
         "red": "maroon",            # 1
@@ -582,15 +586,15 @@ def color_weechat_to_html(color):
         "magenta": "purple",        # 5
         "cyan": "teal",             # 6
         "default": "silver",        # 7
-        "gray": "grey",  # 8
+        "gray": "gray",             # 8
         "lightred": "red",          # 9
         "lightgreen": "lime",       # 11
         "yellow": "yellow",         # 12
-        "lightblue": "fuchsia",  # 13
-        "lightmagenta": "aqua",  # 14
-        "lightcyan": "white",  # 15
+        "lightblue": "blue",        # 13
+        "lightmagenta": "fuchsia",  # 14
+        "lightcyan": "aqua",        # 15
+        "white": "white",           # 15
     }
-    #yapf: disable
     hex_colors = {
         "0":   "#000000",
         "1":   "#800000",

matrix/globals.py

@@ -21,9 +21,12 @@ import sys
 from matrix.utf import WeechatWrapper
 from matrix.plugin_options import PluginOptions
 
-import weechat
-
-W = weechat if sys.hexversion >= 0x3000000 else WeechatWrapper(weechat)
+try:
+    import weechat
+    W = weechat if sys.hexversion >= 0x3000000 else WeechatWrapper(weechat)
+except ImportError:
+    import matrix._weechat as weechat
+    W = weechat
 
 OPTIONS = PluginOptions()  # type: PluginOptions
 SERVERS = dict()  # type: Dict[str, MatrixServer]

tests/color_test.py

@@ -0,0 +1,26 @@
+import webcolors
+from hypothesis import given
+from hypothesis.strategies import sampled_from
+
+from matrix.colors import (Formatted, color_html_to_weechat,
+                           color_weechat_to_html)
+
+html_prism = ("<font color=maroon>T</font><font color=red>e</font><font "
+              "color=olive>s</font><font color=yellow>t</font>")
+
+weechat_prism = (
+    u"\x1b[038;5;1mT\x1b[039m\x1b[038;5;9me\x1b[039m\x1b[038;5;3ms\x1b[039m\x1b[038;5;11mt\x1b[039m"
+)
+
+first_16_html_colors = list(webcolors.HTML4_HEX_TO_NAMES.values())
+
+
+def test_prism():
+    formatted = Formatted.from_html(html_prism)
+    assert formatted.to_weechat() == weechat_prism
+
+
+@given(sampled_from(first_16_html_colors))
+def test_color_conversion(color_name):
+    assert color_weechat_to_html(
+        color_html_to_weechat(color_name)) == color_name