add coordinates single glyph unit tests

Author: chrissimpkins

tests/test_coordinates.py

@@ -0,0 +1,195 @@
+import argparse
+import os
+import sys
+
+import pytest
+
+from pathins.coordinates import coordinates_run
+
+TESTFONT_PATH_1 = os.path.join(
+    "tests", "testfiles", "fonts", "NotoSans-Regular.subset1.ttf"
+)
+
+COLORED_START = "\033[32mSTART ~~~~~~~~\033[0m"
+COLORED_END = "\033[31m~~~~~~~~~~ END\033[0m"
+UNCOLORED_START = "START ~~~~~~~~"
+UNCOLORED_END = "~~~~~~~~~~ END"
+ON_PATH = "----- on -----"
+
+# instantiate a parser for unit tests in this module
+parser = argparse.ArgumentParser()
+parser.add_argument("--nocolor", action="store_true", help="no ANSI color")
+parser.add_argument("fontpath", type=str, help="font file path")
+parser.add_argument(
+    "glyphname", type=str, help="glyph name (optional, default=all)", nargs="?"
+)
+
+
+def test_coordinates_run_error_invalid_path(capsys):
+    test_path = os.path.join("bogus", "path.txt")
+    args = parser.parse_args([test_path])
+
+    with pytest.raises(SystemExit) as e:
+        coordinates_run(args)
+
+    captured = capsys.readouterr()
+    assert e.type == SystemExit
+    assert e.value.code == 1
+    assert "does not appear to be a file" in captured.err
+
+
+def test_coordinates_run_error_non_font_path(capsys):
+    test_path = os.path.join("tests", "testfiles", "text", "test.txt")
+    args = parser.parse_args([test_path])
+
+    with pytest.raises(SystemExit) as e:
+        coordinates_run(args)
+
+    captured = capsys.readouterr()
+    assert e.type == SystemExit
+    assert e.value.code == 1
+    assert "does not appear to be a TTF format font" in captured.err
+
+
+def test_coordinates_run_fail_invalid_glyphname(capsys):
+    args = parser.parse_args([TESTFONT_PATH_1, "bogus"])
+    with pytest.raises(SystemExit) as e:
+        coordinates_run(args)
+
+    captured = capsys.readouterr()
+    assert e.type == SystemExit
+    assert e.value.code == 1
+    assert "Failed to open glyph" in captured.err
+
+
+def test_coordinates_run_single_glyph_noncomposite_default(capsys, monkeypatch):
+    def mock_isatty():
+        return True
+
+    # apply the monkeypatch for sys.stdout.isatty()
+    monkeypatch.setattr(sys.stdout, "isatty", mock_isatty)
+
+    args = parser.parse_args([TESTFONT_PATH_1, "A"])
+    coordinates_run(args)
+
+    captured = capsys.readouterr()
+    # must be in a tty to get ANSI color output
+    # this is mocked above
+    assert "\x1b[1;36m'A' coordinates\x1b[0m" in captured.out
+    # check first contour start coordinate appropriately labeled
+    assert f"(545, 0) {COLORED_START}" in captured.out
+    assert f"(459, 221) {ON_PATH}" in captured.out
+    # check first contour end coord appropriately labeled
+    assert f"(638, 0) {COLORED_END}" in captured.out
+    # check second contour start coordinate appropriately labeled
+    assert f"(432, 301) {COLORED_START}" in captured.out
+    assert "(349, 525)" in captured.out
+    # check off-curve coordinate appropriately labeled
+    assert f"(349, 525) {ON_PATH}" not in captured.out
+    # check second contour end coordinate appropriately labeled
+    assert f"(206, 301) {COLORED_END}" in captured.out
+
+
+def test_coordinates_run_single_glyph_noncomposite_nocolor(capsys, monkeypatch):
+    def mock_isatty():
+        return True
+
+    # apply the monkeypatch for sys.stdout.isatty()
+    monkeypatch.setattr(sys.stdout, "isatty", mock_isatty)
+
+    args = parser.parse_args(["--nocolor", TESTFONT_PATH_1, "A"])
+    coordinates_run(args)
+
+    captured = capsys.readouterr()
+    # must be in a tty to get ANSI color output
+    # this is mocked above
+    assert "\x1b[1;36m'A' coordinates\x1b[0m" not in captured.out
+    assert "'A' coordinates" in captured.out
+    # check first contour start coordinate appropriately labeled
+    assert f"(545, 0) {COLORED_START}" not in captured.out
+    assert f"(545, 0) {UNCOLORED_START}" in captured.out
+
+    assert f"(459, 221) {ON_PATH}" in captured.out
+
+    # check first contour end coord appropriately labeled
+    assert f"(638, 0) {COLORED_END}" not in captured.out
+    assert f"(638, 0) {UNCOLORED_END}" in captured.out
+
+    # check second contour start coordinate appropriately labeled
+    assert f"(432, 301) {COLORED_START}" not in captured.out
+    assert f"(432, 301) {UNCOLORED_START}" in captured.out
+
+    # check off-curve coordinate appropriately labeled
+    assert "(349, 525)" in captured.out
+    assert f"(349, 525) {ON_PATH}" not in captured.out
+
+    # check second contour end coordinate appropriately labeled
+    assert f"(206, 301) {COLORED_END}" not in captured.out
+    assert f"(206, 301) {UNCOLORED_END}" in captured.out
+
+
+def test_coordinates_run_single_glyph_composite_default(capsys, monkeypatch):
+    def mock_isatty():
+        return True
+
+    # apply the monkeypatch for sys.stdout.isatty()
+    monkeypatch.setattr(sys.stdout, "isatty", mock_isatty)
+
+    args = parser.parse_args([TESTFONT_PATH_1, "uni2E2E"])
+    coordinates_run(args)
+
+    captured = capsys.readouterr()
+    # must be in a tty to get ANSI color output
+    # this is mocked above
+    assert "\x1b[1;36m'uni2E2E' coordinates\x1b[0m" in captured.out
+
+    assert f"(303, 201) {COLORED_START}" in captured.out
+    assert f"(303, 228) {ON_PATH}" in captured.out
+
+    assert f"(303, 266)" in captured.out
+    assert f"(303, 266) {ON_PATH}" not in captured.out
+
+    assert f"(233, 201) {COLORED_END}" in captured.out
+
+    assert f"(326, 54) {COLORED_START}" in captured.out
+
+    assert f"(326, 91)" in captured.out
+    assert f"(326, 91) {ON_PATH}" not in captured.out
+
+    assert f"(264, -14) {ON_PATH}" in captured.out
+
+    assert f"(326, 18) {COLORED_END}" in captured.out
+
+
+def test_coordinates_run_single_glyph_composite_nocolor(capsys, monkeypatch):
+    def mock_isatty():
+        return True
+
+    # apply the monkeypatch for sys.stdout.isatty()
+    monkeypatch.setattr(sys.stdout, "isatty", mock_isatty)
+
+    args = parser.parse_args(["--nocolor", TESTFONT_PATH_1, "uni2E2E"])
+    coordinates_run(args)
+
+    captured = capsys.readouterr()
+    # must be in a tty to get ANSI color output
+    # this is mocked above
+    assert "\x1b[1;36m'uni2E2E' coordinates\x1b[0m" not in captured.out
+    assert "'uni2E2E' coordinates" in captured.out
+
+    assert f"(303, 201) {UNCOLORED_START}" in captured.out
+    assert f"(303, 228) {ON_PATH}" in captured.out
+
+    assert f"(303, 266)" in captured.out
+    assert f"(303, 266) {ON_PATH}" not in captured.out
+
+    assert f"(233, 201) {UNCOLORED_END}" in captured.out
+
+    assert f"(326, 54) {UNCOLORED_START}" in captured.out
+
+    assert f"(326, 91)" in captured.out
+    assert f"(326, 91) {ON_PATH}" not in captured.out
+
+    assert f"(264, -14) {ON_PATH}" in captured.out
+
+    assert f"(326, 18) {UNCOLORED_END}" in captured.out