#7444 Migrate Tests from Enzyme to React Testing Library (RTL)

Blueprint currently relies on Enzyme for React component testing (e.g., in alertTests.tsx). Enzyme is no longer maintained and we rely on a makeshift adapter for React 18 support. We should migrate our tests to React Testing Library (RTL) or another modern alternative to ensure long-term maintainability and compatibility with future React versions. This migration will help us keep up with the React ecosystem and improve our test reliability.

See:

https://dev.to/wojtekmaj/enzyme-is-dead-now-what-ekl
https://github.com/cfaester/enzyme-adapter-react-18

Tasks:

Audit all test files using Enzyme.
Replace Enzyme usage with RTL
Update test utilities and helpers as needed.
Ensure all tests pass and maintain coverage.

Audit

The following tests use Enzyme:

core/test/alert/alertTests.tsx | https://github.com/palantir/blueprint/pull/7445
core/test/breadcrumbs/breadcrumbsTests.tsx | https://github.com/palantir/blueprint/pull/7446
core/test/breadcrumbs/breadcrumbTests.tsx | https://github.com/palantir/blueprint/pull/7446
core/test/buttons/abstractButtonTests.tsx | https://github.com/palantir/blueprint/pull/7447
core/test/callout/calloutTests.tsx | https://github.com/palantir/blueprint/pull/7448
core/test/card/cardTests.tsx | https://github.com/palantir/blueprint/pull/7449
core/test/card-list/cardListTests.tsx | https://github.com/palantir/blueprint/pull/7449
core/test/collapse/collapseTests.tsx | https://github.com/palantir/blueprint/pull/7437
core/test/context-menu/contextMenuTests.tsx | https://github.com/palantir/blueprint/pull/7777
core/test/control-card/controlCardTests.tsx | https://github.com/palantir/blueprint/pull/7453
core/test/controls/controlsTests.tsx | https://github.com/palantir/blueprint/pull/7453
core/test/controls/inputGroupTests.tsx | https://github.com/palantir/blueprint/pull/7455
core/test/controls/numericInputTests.tsx | https://github.com/palantir/blueprint/pull/7778
core/test/controls/radioGroupTests.tsx | https://github.com/palantir/blueprint/pull/7456
core/test/dialog/dialogTests.tsx | https://github.com/palantir/blueprint/pull/7438
core/test/drawer/drawerTests.tsx | https://github.com/palantir/blueprint/pull/7734
core/test/editable-text/editableTextTests.tsx | https://github.com/palantir/blueprint/pull/7723
core/test/entity-title/entityTitleTests.tsx | https://github.com/palantir/blueprint/pull/7739
core/test/forms/asyncControllableInputTests.tsx | https://github.com/palantir/blueprint/pull/7780
core/test/forms/fileInputTests.tsx | https://github.com/palantir/blueprint/pull/7783
core/test/forms/formGroupTests.tsx | https://github.com/palantir/blueprint/pull/7769
core/test/forms/textAreaTests.tsx | https://github.com/palantir/blueprint/pull/7784
core/test/html/htmlTests.tsx | https://github.com/palantir/blueprint/pull/7785
core/test/html-select/htmlSelectTests.tsx | https://github.com/palantir/blueprint/pull/7786
core/test/icon/iconTests.tsx | https://github.com/palantir/blueprint/pull/7792
core/test/menu/menuItemTests.tsx | https://github.com/palantir/blueprint/pull/7789
core/test/menu/menuTests.tsx | https://github.com/palantir/blueprint/pull/7789
core/test/multistep-dialog/multistepDialogTests.tsx | https://github.com/palantir/blueprint/pull/7799
core/test/non-ideal-state/nonIdealStateTests.tsx | https://github.com/palantir/blueprint/pull/7788
core/test/overflow-list/overflowListTests.tsx | [SKIPPED]
core/test/overlay/overlayTests.tsx | https://github.com/palantir/blueprint/pull/7800
core/test/overlay2/overlay2Tests.tsx | https://github.com/palantir/blueprint/pull/7636
core/test/panel-stack/panelStackTests.tsx | https://github.com/palantir/blueprint/pull/7801
core/test/popover/popoverTests.tsx | https://github.com/palantir/blueprint/pull/7532
core/test/portal/portalTests.tsx | https://github.com/palantir/blueprint/pull/7802
core/test/progress/progressBarTests.tsx | https://github.com/palantir/blueprint/pull/7787
core/test/resize-sensor/resizeSensorTests.tsx | [SKIPPED]
core/test/section/sectionTests.tsx | https://github.com/palantir/blueprint/pull/7791
core/test/segmented-control/segmentedControlTests.tsx | https://github.com/palantir/blueprint/pull/7798
core/test/slider/handleTests.tsx | https://github.com/palantir/blueprint/pull/7772
core/test/slider/multiSliderTests.tsx | https://github.com/palantir/blueprint/pull/7772
core/test/slider/rangeSliderTests.tsx | https://github.com/palantir/blueprint/pull/7772
core/test/slider/sliderTests.tsx | https://github.com/palantir/blueprint/pull/7772
core/test/slider/sliderTestUtils.ts | https://github.com/palantir/blueprint/pull/7772
core/test/spinner/spinnerTests.tsx | https://github.com/palantir/blueprint/pull/7771
core/test/tabs/tabsTests.tsx | https://github.com/palantir/blueprint/pull/7793
core/test/tag/compoundTagTests.tsx | https://github.com/palantir/blueprint/pull/7795
core/test/tag/tagTests.tsx | https://github.com/palantir/blueprint/pull/7795
core/test/tag-input/tagInputTests.tsx | https://github.com/palantir/blueprint/pull/7779
core/test/text/textTests.tsx | https://github.com/palantir/blueprint/pull/7794
core/test/toast/toastTests.tsx | https://github.com/palantir/blueprint/pull/7803
core/test/tooltip/tooltipTests.tsx | https://github.com/palantir/blueprint/pull/7669
core/test/tree/treeTests.tsx | https://github.com/palantir/blueprint/pull/7770
datetime/test/common/dayPickerTestUtils.ts
datetime/test/components/dateInputTests.tsx
datetime/test/components/datePickerTests.tsx
datetime/test/components/dateRangeInputTests.tsx | https://github.com/palantir/blueprint/pull/7711
datetime/test/components/dateRangePickerTests.tsx
datetime/test/components/timePickerTests.tsx | https://github.com/palantir/blueprint/pull/7524
datetime/test/components/timezoneSelectTests.tsx
datetime/test/dateInputMigrationUtilsTests.tsx
icons/test/generatedIconsTests.tsx
icons/test/svgIconContainerTests.tsx
select/test/itemRendererTests.tsx
select/test/multiSelectTests.tsx
select/test/omnibarTests.tsx
select/test/queryListTests.tsx
select/test/selectComponentSuite.tsx
select/test/selectPopoverTestSuite.tsx
select/test/selectTests.tsx
select/test/suggestTests.tsx
table/test/common/internal/scrollUtilsTests.tsx
table/test/quadrants/tableQuadrantStackTests.tsx
table/test/quadrants/tableQuadrantTests.tsx
table/test/columnHeaderCellTests.tsx
table/test/editableCellTests.tsx
table/test/editableNameTests.tsx
table/test/locatorTests.tsx
table/test/resizableTests.tsx
table/test/rowHeaderCellTests.tsx
table/test/tableBodyTests.tsx
table/test/tableTests.tsx

There are also several Table tests that leverage a custom testing harness that uses Enzyme:

(see: https://github.com/palantir/blueprint/pull/7149)

table/test/formats/jsonFormatTests.tsx
table/test/formats/truncatedFormatTests.tsx
table/test/cellTests.tsx
table/test/columnHeaderCellTests.tsx
table/test/columnTests.tsx
table/test/guidesTests.tsx
table/test/harness.ts
table/test/loadableContentTests.tsx
table/test/loadingOptionsTests.tsx
table/test/menusTests.tsx
table/test/reorderableTests.tsx
table/test/resizableTests.tsx
table/test/rowHeaderCellTests.tsx
table/test/selectableTests.tsx
table/test/selectionTests.tsx
table/test/tableTests.tsx