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+'''test pycairo API
+- can be expanded later as required.
+- is not able to test the quality of images created. We assume cairo itself
+ tests for this.
+'''
+import tempfile as tfi
+
+import cairo
+import py.test as test
+
+
+def test_context():
+ if cairo.HAS_IMAGE_SURFACE:
+ f, w, h = cairo.FORMAT_ARGB32, 100, 100
+ s = cairo.ImageSurface(f, w, h)
+ ctx = cairo.Context(s)
+ ctx.set_source_rgb(1.0, 1.0, 1.0)
+ ctx.set_operator(cairo.OPERATOR_SOURCE)
+ ctx.paint()
+
+
+def test_matrix():
+ m = cairo.Matrix()
+ m.rotate(10)
+ m.scale(1.5, 2.5)
+ m.translate(10, 20)
+
+
+def test_path():
+ # AttributeError: 'module' object has no attribute 'Path'
+ test.raises(AttributeError, "p = cairo.Path()")
+ # see examples/warpedtext.py
+
+
+def test_pattern():
+ # TypeError: The Pattern type cannot be instantiated
+ test.raises(TypeError, "p = cairo.Pattern()")
+
+ r,g,b,a = 0.1, 0.2, 0.3, 0.4
+ p = cairo.SolidPattern(r,g,b,a)
+ assert p.get_rgba() == (r,g,b,a)
+
+ # SurfacePattern
+
+ # TypeError: The Gradient type cannot be instantiated
+ test.raises(TypeError, "p = cairo.Gradient()")
+
+ x0,y0,x1,y1 = 0.0, 0.0, 0.0, 1.0
+ p = cairo.LinearGradient(x0,y0,x1,y1)
+ assert p.get_linear_points() == (x0,y0,x1,y1)
+ p.add_color_stop_rgba(1, 0, 0, 0, 1)
+ p.add_color_stop_rgba(0, 1, 1, 1, 1)
+
+ cx0, cy0, radius0, cx1, cy1, radius1 = 1.0, 1.0, 1.0, 2.0, 2.0, 1.0
+ p = cairo.RadialGradient(cx0, cy0, radius0, cx1, cy1, radius1)
+ assert p.get_radial_circles() == (cx0, cy0, radius0, cx1, cy1, radius1)
+ p.add_color_stop_rgba(0, 1, 1, 1, 1)
+ p.add_color_stop_rgba(1, 0, 0, 0, 1)
+
+
+def test_surface():
+ # TypeError: The Surface type cannot be instantiated
+ test.raises(TypeError, "s = cairo.Surface()")
+
+ if cairo.HAS_IMAGE_SURFACE:
+ f, w, h = cairo.FORMAT_ARGB32, 100, 100
+ s = cairo.ImageSurface(f, w, h)
+ assert s.get_format() == f
+ assert s.get_width() == w
+ assert s.get_height() == h
+
+ if cairo.HAS_PDF_SURFACE:
+ f, w, h = tfi.TemporaryFile(mode='w+b'), 100, 100
+ s = cairo.PDFSurface(f, w, h)
+
+ if cairo.HAS_PS_SURFACE:
+ f, w, h = tfi.TemporaryFile(mode='w+b'), 100, 100
+ s = cairo.PSSurface(f, w, h)
+
+ if cairo.HAS_SVG_SURFACE:
+ f, w, h = tfi.TemporaryFile(mode='w+b'), 100, 100
+ s = cairo.SVGSurface(f, w, h)
+
+
+def test_text():
+ pass