- name: 2d.reset.basic
desc: reset clears to transparent black
code: |
ctx.fillStyle = '#f00';
ctx.fillRect(0, 0, ctx.canvas.width, ctx.canvas.height);
ctx.reset();
@assert pixel 0,0 == 0,0,0,0;
@assert pixel 50,25 == 0,0,0,0;
@assert pixel 25,50 == 0,0,0,0;
@assert pixel 100,50 == 0,0,0,0;
@assert pixel 0,50 == 0,0,0,0;
@assert pixel 100,0 == 0,0,0,0;
t.done();
- name: 2d.reset.after-rasterization
desc: Reset after rasterizing a frame discards frame content.
code: |
ctx.fillStyle = 'rgba(255, 0, 0, 1)';
ctx.fillRect(0, 0, {{ size[0] }}, {{ size[1] }});
ctx.getImageData(0, 0, 1, 1); // Force previous draw calls to be rendered.
ctx.reset();
ctx.fillStyle = 'rgba(0, 255, 0, 0.5)';
ctx.fillRect(0, 0, {{ size[0] }}, {{ (size[1] / 2) | int }});
reference: |
ctx.fillStyle = 'rgba(0, 255, 0, 0.5)';
ctx.fillRect(0, 0, {{ size[0] }}, {{ (size[1] / 2) | int }});
- name: 2d.reset.state
desc: check that the state is reset
code: |
const default_value = ctx.{{ state_name }};
ctx.{{ state_name }} = {{ new_value }};
@assert ctx.{{ state_name }} == {{ new_value }};
ctx.reset();
@assert ctx.{{ state_name }} == default_value;
variants:
- letter_spacing:
state_name: letterSpacing
new_value: "'12px'"
word_spacing:
state_name: wordSpacing
new_value: "'12px'"
fill_style:
state_name: fillStyle
new_value: "'#ffffff'"
stroke_style:
state_name: strokeStyle
new_value: "'#ffffff'"
filter:
state_name: filter
new_value: "'blur(10px)'"
font:
state_name: font
new_value: "'25px sans-serif'"
global_alpha:
state_name: globalAlpha
new_value: 0.5
global_composite_operation:
state_name: globalCompositeOperation
new_value: "'destination-over'"
line_width:
state_name: lineWidth
new_value: 1
line_cap:
state_name: lineCap
new_value: "'square'"
line_join:
state_name: lineJoin
new_value: "'bevel'"
miter_limit:
state_name: miterLimit
new_value: 1.0
line_dash_offset:
state_name: lineDashOffset
new_value: 1.0
shadow_offset_x:
state_name: shadowOffsetX
new_value: 10.0
shadow_offset_y:
state_name: shadowOffsetY
new_value: 10.0
shadow_blur:
state_name: shadowBlur
new_value: 10.0
shadow_color:
state_name: shadowColor
new_value: "'#ff0000'"
font:
state_name: font
new_value: "'16px sans-serif'"
text_align:
state_name: textAlign
new_value: "'end'"
text_baseline:
state_name: textBaseline
new_value: "'middle'"
direction:
state_name: direction
new_value: "'rtl'"
font_kerning:
state_name: fontKerning
new_value: "'normal'"
font_stretch:
state_name: fontStretch
new_value: "'ultra-condensed'"
font_variant_caps:
state_name: fontVariantCaps
new_value: "'unicase'"
text_rendering:
state_name: textRendering
new_value: "'geometricPrecision'"
image_smoothing_enabled:
state_name: imageSmoothingEnabled
new_value: "false"
image_smoothing_quality:
state_name: imageSmoothingQuality
new_value: "'high'"
- name: 2d.reset.state.transformation_matrix
desc: check that the state is reset
code: |
ctx.scale(2, 2);
ctx.reset();
@assert ctx.getTransform().isIdentity;
- name: 2d.reset.state.clip
desc: check that the clip is reset
size: [200, 200]
code: |
ctx.beginPath();
ctx.rect(0, 0, 100, 100);
ctx.clip();
ctx.fillRect(0, 0, 200, 200);
ctx.reset();
ctx.fillRect(0, 0, 200, 200);
reference: |
ctx.fillRect(0, 0, 200, 200);
- name: 2d.reset.state.line_dash
desc: check that the line dash is reset
code: |
ctx.setLineDash([1, 2]);
ctx.reset();
@assert ctx.getLineDash().length == 0;
- name: 2d.reset.render.drop_shadow
desc: check that drop shadows are correctly rendered after reset
size: [500, 500]
code: |
ctx.shadowOffsetX = 10;
ctx.shadowOffsetY = 10;
ctx.shadowColor = "red";
ctx.shadowBlur = 10;
ctx.reset();
ctx.fillRect(100, 100, 100, 100);
reference: |
ctx.fillRect(100, 100, 100, 100);
- name: 2d.reset.render.text
desc: check that text is correctly rendered after reset
size: [400, 400]
code: |
ctx.font = "24px serif";
ctx.textAlign = "center";
ctx.textBaseline = "hanging";
ctx.direction = "rtl";
ctx.letterSpacing = "10px";
ctx.fontKerning = "none";
ctx.fontStretch = "semi-condensed";
ctx.fontVariantCaps = "tilting-caps";
ctx.textRendering = "optimizeLegibility";
ctx.wordSpacing = "20px";
ctx.reset();
ctx.fillText("Lorem ipsum dolor sit amet, consectetur adipiscing elit", 0, 10);
reference: |
ctx.fillText("Lorem ipsum dolor sit amet, consectetur adipiscing elit", 0, 10);
- name: 2d.reset.render.line
desc: check that lines are correctly rendered after reset
size: [400, 400]
code: |
ctx.lineWidth = 10;
ctx.lineCap = "round";
ctx.lineJoin = "bevel";
ctx.lineDashOffset = 10;
ctx.setLineDash([20]);
ctx.reset();
ctx.beginPath();
ctx.moveTo(100, 100);
ctx.lineTo(100, 300);
ctx.lineTo(300, 300);
ctx.lineTo(300, 100);
ctx.stroke();
reference: |
ctx.beginPath();
ctx.moveTo(100, 100);
ctx.lineTo(100, 300);
ctx.lineTo(300, 300);
ctx.lineTo(300, 100);
ctx.stroke();
- name: 2d.reset.render.miter_limit
desc: check that the lines are correctly rendered with the default miter limit after reset
size: [400, 400]
code: |
ctx.miterLimit = 6;
ctx.reset();
ctx.lineWidth = 10;
ctx.beginPath();
ctx.moveTo(0, 100);
for (let i = 0; i < 24; i++) {
const dy = i % 2 === 0 ? 25 : -25;
ctx.lineTo(Math.pow(i, 1.5) * 2, 75 + dy);
}
ctx.stroke();
reference: |
ctx.lineWidth = 10;
ctx.beginPath();
ctx.moveTo(0, 100);
for (let i = 0; i < 24; i++) {
const dy = i % 2 === 0 ? 25 : -25;
ctx.lineTo(Math.pow(i, 1.5) * 2, 75 + dy);
}
ctx.stroke();
- name: 2d.reset.render.global_composite_operation
desc: check that canvas correctly renders rectangles with the default global composite operation after reset
size: [400, 400]
code: |
ctx.globalCompositeOperation = "xor";
ctx.reset();
ctx.fillRect(10, 10, 100, 100);
ctx.fillRect(50, 50, 100, 100);
reference: |
ctx.fillRect(10, 10, 100, 100);
ctx.fillRect(50, 50, 100, 100);
- name: 2d.reset.render.misc
desc: check that canvas correctly renders rectangles after reset (states not covered by other tests)
size: [400, 400]
code: |
ctx.fillStyle = "red";
ctx.strokeStyle = "red";
ctx.globalAlpha = 0.5;
ctx.filter = "blur(2px)";
ctx.reset();
ctx.fillRect(0, 0, 100, 100);
ctx.strokeRect(150, 150, 100, 100);
reference: |
ctx.fillRect(0, 0, 100, 100);
ctx.strokeRect(150, 150, 100, 100);
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