mirror of
https://github.com/MihailRis/voxelcore.git
synced 2026-10-04 10:31:50 +00:00
79 lines
2.4 KiB
Lua
79 lines
2.4 KiB
Lua
local this = {}
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local app = __vc_app
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local function diff_canvas(expected, fact)
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this.equals(expected.width, fact.width, "image width")
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this.equals(expected.width, fact.width, "image height")
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local diff = Canvas({expected.width, expected.height})
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local mismatches = 0
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for y = 0, expected.height - 1 do
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for x = 0, expected.width - 1 do
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local ca = expected:at(x, y)
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local cb = fact:at(x, y)
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if ca == cb then
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diff:set(x, y, ca)
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else
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diff:set(x, y, 0xff0000ff)
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mismatches = mismatches + 1
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end
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end
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end
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return diff, mismatches
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end
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local TEST_ARTIFACTS_PATH = "export:test-results"
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local function get_test_artifact_path(name)
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local path = TEST_ARTIFACTS_PATH
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if not file.isdir(path) then
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file.mkdirs(path)
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end
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return file.join(path, name)
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end
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function this.equals(expected, fact, prefix)
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local mt = getmetatable(expected)
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if mt == Canvas then
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local diff, mismatches = diff_canvas(expected, fact)
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if mismatches > 0 then
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prefix = prefix or app.script or base64.encode_urlsafe(random.bytes(6))
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local path_diff = get_test_artifact_path(
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string.format("%s.diff.png", prefix)
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)
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local path_fact = get_test_artifact_path(
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string.format("%s.fact.png", prefix)
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)
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local path_expected = get_test_artifact_path(
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string.format("%s.expected.png", prefix)
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)
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file.write_bytes(path_diff, diff:encode('png'))
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file.write_bytes(path_fact, fact:encode('png'))
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file.write_bytes(path_expected, expected:encode('png'))
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local total_pixels = expected.width * expected.height
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assert(mismatches == 0, string.format(
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"%s pixels of %s (%s%%) are different, diff saved as %s",
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mismatches,
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total_pixels,
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math.round(mismatches / total_pixels * 100, 2),
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string.escape(path_diff))
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)
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end
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return
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end
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if prefix then
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prefix = prefix .. " "
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else
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prefix = ""
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end
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assert(fact == expected, string.format(
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prefix .. "(fact == expected) assertion failed\n Expected: %s\n Fact: %s",
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expected, fact
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))
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end
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return this
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