fix #89 with Image component v2.0 + 23 tests (#90)

* qtbot is needed in any test that uses a QObject
previously these tests would fail if they ran before qtbot was initialized by another test. I'm now running tests in a random order

* add tests for drawBars, readAudioFile, BlankFrame

* replace numpy.seterr with numpy.errstate

* fix incorrect comment

* add MockVideoWorker and imageDataSum

* test further into visualization (less likely to be a false positive)

* test FloodFrame function

* add failing test for Image component
one step towards fixing #89

* test component name CLI parsing

* prevent log warning when 1 setting changed

* correct tests to use widgets when needed

* test undo and blockSignals

* remove stretch_scale (use scale only)

* image ignores scale if stretch checkbox checked
fixes #89

* test Title Text component, ffmpeg command

* Image v2: replace stretched setting with resizeMode
3 resize modes are scale, cover, and stretch. Scale only applies when resizeMode is set to scale. Cover uses ImageOps.fit() to stretch while maintaining aspect ratio. Also, spinBox_scale was moved to be underneath comboBox_resizeMode.

* change transformData into staticmethod
the purpose is to allow easier reuse in other components

* add respondToAudio option to Image component
this causes the image to scale up and down slightly based on the input audio file

* cache static portion of image when animating
increases rendering speed of a 1-minute video by 12 seconds (based on two manual tests anyway)

1 files changed, 50 insertions, 0 deletions

diff --git a/tests/test_image_comp.py b/tests/test_image_comp.py
new file mode 100644
index 0000000..a4f05e1
--- /dev/null
+++ b/tests/test_image_comp.py
@@ -0,0 +1,50 @@
+from avp.command import Command
+from pytestqt import qtbot
+from pytest import fixture
+from . import audioData, MockSignal, imageDataSum, getTestDataPath
+
+
+sampleSize = 1470  # 44100 / 30 = 1470
+
+
+@fixture
+def coreWithImageComp(qtbot):
+    """Fixture providing a Command object with Image component added"""
+    command = Command()
+    command.settings.setValue("outputHeight", 1080)
+    command.settings.setValue("outputWidth", 1920)
+    command.core.insertComponent(0, command.core.moduleIndexFor("Image"), command)
+    yield command.core
+
+
+def test_comp_image_set_path(coreWithImageComp):
+    "Set imagePath of Image component"
+    comp = coreWithImageComp.selectedComponents[0]
+    comp.imagePath = getTestDataPath("test.jpg")
+    image = comp.previewRender()
+    assert imageDataSum(image) == 463711601
+
+
+def test_comp_image_scale_50_1080p(coreWithImageComp):
+    """Image component stretches image to 50% at 1080p"""
+    comp = coreWithImageComp.selectedComponents[0]
+    comp.imagePath = getTestDataPath("test.jpg")
+    image = comp.previewRender()
+    sum = imageDataSum(image)
+    comp.page.spinBox_scale.setValue(50)
+    assert imageDataSum(comp.previewRender()) - sum / 4 < 2000
+
+
+def test_comp_image_scale_50_720p(coreWithImageComp):
+    """Image component stretches image to 50% at 720p"""
+    comp = coreWithImageComp.selectedComponents[0]
+    comp.imagePath = getTestDataPath("test.jpg")
+    comp.page.spinBox_scale.setValue(50)
+    image = comp.previewRender()
+    sum = imageDataSum(image)
+    comp.parent.settings.setValue("outputHeight", 720)
+    comp.parent.settings.setValue("outputWidth", 1280)
+    newImage = comp.previewRender()
+    assert image.width == 1920
+    assert newImage.width == 1280
+    assert imageDataSum(comp.previewRender()) == sum