TST: mixed_int_string Index

[jbrockmendel]

Adding in conftest's indices_dict an entry:

"mixed-int-string": Index([0, "a", 1, "b", 2, "c"])

broke a bunch of tests the last time I checked. We should add an entry like this and fix the tests it breaks and/or bugs it surfaces.

[lithomas1]

I'll tag this as a good first issue as adding the tests doesn't seem too hard.

pandas/pandas/conftest.py

Lines 595 to 628 in b4929f8

	indices_dict = {
	"string": tm.makeStringIndex(100),
	"datetime": tm.makeDateIndex(100),
	"datetime-tz": tm.makeDateIndex(100, tz="US/Pacific"),
	"period": tm.makePeriodIndex(100),
	"timedelta": tm.makeTimedeltaIndex(100),
	"range": tm.makeRangeIndex(100),
	"int8": tm.makeIntIndex(100, dtype="int8"),
	"int16": tm.makeIntIndex(100, dtype="int16"),
	"int32": tm.makeIntIndex(100, dtype="int32"),
	"int64": tm.makeIntIndex(100, dtype="int64"),
	"uint8": tm.makeUIntIndex(100, dtype="uint8"),
	"uint16": tm.makeUIntIndex(100, dtype="uint16"),
	"uint32": tm.makeUIntIndex(100, dtype="uint32"),
	"uint64": tm.makeUIntIndex(100, dtype="uint64"),
	"float32": tm.makeFloatIndex(100, dtype="float32"),
	"float64": tm.makeFloatIndex(100, dtype="float64"),
	"bool-object": tm.makeBoolIndex(10).astype(object),
	"bool-dtype": Index(np.random.randn(10) < 0),
	"complex64": tm.makeNumericIndex(100, dtype="float64").astype("complex64"),
	"complex128": tm.makeNumericIndex(100, dtype="float64").astype("complex128"),
	"categorical": tm.makeCategoricalIndex(100),
	"interval": tm.makeIntervalIndex(100),
	"empty": Index([]),
	"tuples": MultiIndex.from_tuples(zip(["foo", "bar", "baz"], [1, 2, 3])),
	"mi-with-dt64tz-level": _create_mi_with_dt64tz_level(),
	"multi": _create_multiindex(),
	"repeats": Index([0, 0, 1, 1, 2, 2]),
	"nullable_int": Index(np.arange(100), dtype="Int64"),
	"nullable_uint": Index(np.arange(100), dtype="UInt16"),
	"nullable_float": Index(np.arange(100), dtype="Float32"),
	"nullable_bool": Index(np.arange(100).astype(bool), dtype="boolean"),
	"string-python": Index(pd.array(tm.makeStringIndex(100), dtype="string[python]")),
	}

is where you should start.

A word of caution, though:
This can get annoying/hard fast depending on how many tests fail.

[SanjithChockan]

take

[segwhat]

@SanjithChockan how's it going?

[PurnashisHazra]

Can I take this up?

[PurnashisHazra]

take