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transforms.test.js
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transforms.test.js
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
// @flow
import {
getProfileFromTextSamples,
getProfileWithUnbalancedNativeAllocations,
getProfileWithBalancedNativeAllocations,
getProfileWithJsAllocations,
addMarkersToThreadWithCorrespondingSamples,
} from '../fixtures/profiles/processed-profile';
import { formatTree } from '../fixtures/utils';
import { storeWithProfile } from '../fixtures/stores';
import { assertSetContainsOnly } from '../fixtures/custom-assertions';
import {
getStackLineInfo,
getLineTimings,
} from 'firefox-profiler/profile-logic/line-timings';
import {
addTransformToStack,
addCollapseResourceTransformToStack,
popTransformsFromStack,
changeInvertCallstack,
changeImplementationFilter,
changeSelectedCallNode,
changeCallTreeSummaryStrategy,
} from '../../actions/profile-view';
import { selectedThreadSelectors } from '../../selectors/per-thread';
describe('"focus-subtree" transform', function () {
describe('on a call tree', function () {
/**
* Assert this transformation:
*
* A:3,0 C:2,0
* | / \
* v Focus [A, B, C] v v
* B:3,0 --> D:1,0 F:1,0
* / \ | |
* v v v v
* C:2,0 H:1,0 E:1,1 G:1,1
* / \ \
* v v v
* D:1,0 F:1,0 I:1,1
* | |
* v v
* E:1,1 G:1,1
*/
const {
profile,
funcNamesPerThread: [funcNames],
} = getProfileFromTextSamples(`
A A A
B B B
C C H
D F I
E G
`);
const { dispatch, getState } = storeWithProfile(profile);
const originalCallTree = selectedThreadSelectors.getCallTree(getState());
const threadIndex = 0;
const A = funcNames.indexOf('A');
const B = funcNames.indexOf('B');
const C = funcNames.indexOf('C');
it('starts as an unfiltered call tree', function () {
expect(formatTree(originalCallTree)).toEqual([
'- A (total: 3, self: —)',
' - B (total: 3, self: —)',
' - C (total: 2, self: —)',
' - D (total: 1, self: —)',
' - E (total: 1, self: 1)',
' - F (total: 1, self: —)',
' - G (total: 1, self: 1)',
' - H (total: 1, self: —)',
' - I (total: 1, self: 1)',
]);
});
it('can be filtered to a subtree', function () {
dispatch(
addTransformToStack(threadIndex, {
type: 'focus-subtree',
callNodePath: [A, B, C],
implementation: 'combined',
inverted: false,
})
);
const callTree = selectedThreadSelectors.getCallTree(getState());
expect(formatTree(callTree)).toEqual([
'- C (total: 2, self: —)',
' - D (total: 1, self: —)',
' - E (total: 1, self: 1)',
' - F (total: 1, self: —)',
' - G (total: 1, self: 1)',
]);
});
it('can remove the transform', function () {
dispatch(popTransformsFromStack(0));
const callTree = selectedThreadSelectors.getCallTree(getState());
const formattedTree = formatTree(callTree);
expect(formattedTree).toEqual([
'- A (total: 3, self: —)',
' - B (total: 3, self: —)',
' - C (total: 2, self: —)',
' - D (total: 1, self: —)',
' - E (total: 1, self: 1)',
' - F (total: 1, self: —)',
' - G (total: 1, self: 1)',
' - H (total: 1, self: —)',
' - I (total: 1, self: 1)',
]);
expect(formattedTree).toEqual(formatTree(originalCallTree));
});
});
describe('on an inverted call tree', function () {
/**
* 1. Starting call tree -> 2. Invert call tree ->
*
* A:3,0 Z:2,2 E:1,1
* ↓ ↓ ↓
* B:3,0 Y:2,0 D:1,0
* ↙ ↘ ↓ ↓
* X:1,0 C:1,0 X:2,0 C:1,0
* ↙ ↙ ↘ ↙ ↘ ↓
* Y:1,0 X:1,0 D:1,0 B:1,0 C:1,0 B:1,0
* ↓ ↓ ↓ ↓ ↓ ↓
* Z:1,1 Y:1,0 E:1,0 A:1,0 B:1,0 A:1,0
* ↓ ↓
* Z:1,1 A:1,0
*
* --------------------------------------------------------------------------------
*
* -> 3. Focus [Z, Y, X] -> 4. Un-invert call tree
*
* X:2,2 A:2,0
* ↙ ↘ ↓
* B:1,0 C:1,0 B:2,0
* ↓ ↓ ↙ ↘
* A:1,0 B:1,0 X:1,1 C:1,0
* ↓ ↓
* A:1,0 X:1,1
*/
const {
profile,
funcNamesPerThread: [funcNames],
} = getProfileFromTextSamples(`
A A A
B B B
C X C
D Y X
E Z Y
Z
`);
const { dispatch, getState } = storeWithProfile(profile);
dispatch(changeInvertCallstack(true));
it('starts as an inverted call tree', function () {
const callTree = selectedThreadSelectors.getCallTree(getState());
expect(formatTree(callTree)).toEqual([
'- Z (total: 2, self: 2)',
' - Y (total: 2, self: —)',
' - X (total: 2, self: —)',
' - B (total: 1, self: —)',
' - A (total: 1, self: —)',
' - C (total: 1, self: —)',
' - B (total: 1, self: —)',
' - A (total: 1, self: —)',
'- E (total: 1, self: 1)',
' - D (total: 1, self: —)',
' - C (total: 1, self: —)',
' - B (total: 1, self: —)',
' - A (total: 1, self: —)',
]);
});
it('can be filtered to a subtree', function () {
const threadIndex = 0;
const X = funcNames.indexOf('X');
const Y = funcNames.indexOf('Y');
const Z = funcNames.indexOf('Z');
dispatch(
addTransformToStack(threadIndex, {
type: 'focus-subtree',
callNodePath: [Z, Y, X],
implementation: 'combined',
inverted: true,
})
);
const callTree = selectedThreadSelectors.getCallTree(getState());
expect(formatTree(callTree)).toEqual([
'- X (total: 2, self: 2)',
' - B (total: 1, self: —)',
' - A (total: 1, self: —)',
' - C (total: 1, self: —)',
' - B (total: 1, self: —)',
' - A (total: 1, self: —)',
]);
});
it('can be un-inverted and keep the transform', function () {
dispatch(changeInvertCallstack(false));
const callTree = selectedThreadSelectors.getCallTree(getState());
expect(formatTree(callTree)).toEqual([
'- A (total: 2, self: —)',
' - B (total: 2, self: —)',
' - C (total: 1, self: —)',
' - X (total: 1, self: 1)',
' - X (total: 1, self: 1)',
]);
});
});
});
describe('"merge-call-node" transform', function () {
describe('on a call tree', function () {
/**
* Assert this transformation:
*
* A:3,0 A:3,0
* | |
* v Focus [A, B, C] v
* B:3,0 --> B:3,0
* / \ / | \
* v v v v v
* C:2,0 H:1,0 D:1,0 F:1,0 I:1,1
* / \ \ | |
* v v v v v
* D:1,0 F:1,0 I:1,1 E:1,1 G:1,1
* | |
* v v
* E:1,1 G:1,1
*/
const {
profile,
funcNamesPerThread: [funcNames],
} = getProfileFromTextSamples(`
A A A
B B B
C C H
D F I
E G
`);
const { dispatch, getState } = storeWithProfile(profile);
const originalCallTree = selectedThreadSelectors.getCallTree(getState());
const threadIndex = 0;
const A = funcNames.indexOf('A');
const B = funcNames.indexOf('B');
const C = funcNames.indexOf('C');
it('starts as an unfiltered call tree', function () {
expect(formatTree(originalCallTree)).toEqual([
'- A (total: 3, self: —)',
' - B (total: 3, self: —)',
' - C (total: 2, self: —)',
' - D (total: 1, self: —)',
' - E (total: 1, self: 1)',
' - F (total: 1, self: —)',
' - G (total: 1, self: 1)',
' - H (total: 1, self: —)',
' - I (total: 1, self: 1)',
]);
});
it('call node [A, B, C] can be merged into [A, B]', function () {
dispatch(
addTransformToStack(threadIndex, {
type: 'merge-call-node',
callNodePath: [A, B, C],
implementation: 'combined',
})
);
const callTree = selectedThreadSelectors.getCallTree(getState());
expect(formatTree(callTree)).toEqual([
'- A (total: 3, self: —)',
' - B (total: 3, self: —)',
' - D (total: 1, self: —)',
' - E (total: 1, self: 1)',
' - F (total: 1, self: —)',
' - G (total: 1, self: 1)',
' - H (total: 1, self: —)',
' - I (total: 1, self: 1)',
]);
});
});
describe('on a JS call tree', function () {
const {
profile,
funcNamesPerThread: [funcNames],
} = getProfileFromTextSamples(`
JS::RunScript.cpp JS::RunScript.cpp JS::RunScript.cpp
onLoad.js onLoad.js onLoad.js
a.js js::jit::IonCannon.cpp js::jit::IonCannon.cpp
b.js a.js a.js
b.js b.js
`);
const threadIndex = 0;
// funcIndexes in the profile fixture.
const RUN_SCRIPT = funcNames.indexOf('JS::RunScript.cpp');
const ON_LOAD = funcNames.indexOf('onLoad.js');
const A = funcNames.indexOf('a.js');
const mergeJSPathAB = {
type: 'merge-call-node',
callNodePath: [ON_LOAD, A],
implementation: 'js',
};
const mergeCombinedPathToA = {
type: 'merge-call-node',
callNodePath: [RUN_SCRIPT, ON_LOAD, A],
implementation: 'combined',
};
it('starts as an untransformed call tree', function () {
/**
* JS::RunScript
* ↓
* onLoad
* ↙ ↘
* a js::jit::IonCannon
* ↓ ↓
* b a
* ↓
* b
*/
const { getState } = storeWithProfile(profile);
expect(
formatTree(selectedThreadSelectors.getCallTree(getState()))
).toEqual([
'- JS::RunScript.cpp (total: 3, self: —)',
' - onLoad.js (total: 3, self: —)',
' - js::jit::IonCannon.cpp (total: 2, self: —)',
' - a.js (total: 2, self: —)',
' - b.js (total: 2, self: 2)',
' - a.js (total: 1, self: —)',
' - b.js (total: 1, self: 1)',
]);
});
it('has an untransformed JS only view', function () {
/**
* onLoad
* ↓
* a
* ↓
* b
*/
const { dispatch, getState } = storeWithProfile(profile);
dispatch(changeImplementationFilter('js'));
expect(
formatTree(selectedThreadSelectors.getCallTree(getState()))
).toEqual([
'- onLoad.js (total: 3, self: —)',
' - a.js (total: 3, self: —)',
' - b.js (total: 3, self: 3)',
]);
});
it('can merge the node at JS path "onLoad" -> "A"', function () {
/**
* onLoad
* ↓
* b
*/
const { dispatch, getState } = storeWithProfile(profile);
dispatch(changeImplementationFilter('js'));
dispatch(addTransformToStack(threadIndex, mergeJSPathAB));
expect(
formatTree(selectedThreadSelectors.getCallTree(getState()))
).toEqual([
'- onLoad.js (total: 3, self: —)',
' - b.js (total: 3, self: 3)',
]);
});
it('can merge the node at JS path "onLoad" -> "A" on an combined call tree', function () {
/**
* JS::RunScript
* ↓
* onLoad
* ↙ ↘
* b js::jit::IonCannon
* ↓
* b
*/
const { dispatch, getState } = storeWithProfile(profile);
dispatch(addTransformToStack(threadIndex, mergeJSPathAB));
expect(
formatTree(selectedThreadSelectors.getCallTree(getState()))
).toEqual([
'- JS::RunScript.cpp (total: 3, self: —)',
' - onLoad.js (total: 3, self: —)',
' - js::jit::IonCannon.cpp (total: 2, self: —)',
' - b.js (total: 2, self: 2)',
' - b.js (total: 1, self: 1)',
]);
});
it('can merge a combined CallNodePath, and display a correct JS call tree', function () {
/**
* onLoad
* ↙ ↘
* b a
* ↓
* b
*/
const { dispatch, getState } = storeWithProfile(profile);
dispatch(changeImplementationFilter('js'));
dispatch(addTransformToStack(threadIndex, mergeCombinedPathToA));
expect(
formatTree(selectedThreadSelectors.getCallTree(getState()))
).toEqual([
'- onLoad.js (total: 3, self: —)',
' - a.js (total: 2, self: —)',
' - b.js (total: 2, self: 2)',
' - b.js (total: 1, self: 1)',
]);
});
});
});
describe('"merge-function" transform', function () {
describe('on a call tree', function () {
/**
* Assert this transformation:
*
* A:3,0 A:3,0
* | |
* v merge C v
* B:3,0 --> B:3,0
* / \ / | \
* v v v v v
* C:2,0 H:1,0 D:1,0 F:1,0 H:1,1
* / \ \ | |
* v v v v v
* D:1,0 F:1,0 C:1,1 E:1,1 G:1,1
* | |
* v v
* E:1,1 G:1,1
*/
const {
profile,
funcNamesPerThread: [funcNames],
} = getProfileFromTextSamples(`
A A A
B B B
C C H
D F C
E G
`);
const threadIndex = 0;
const C = funcNames.indexOf('C');
const { dispatch, getState } = storeWithProfile(profile);
const originalCallTree = selectedThreadSelectors.getCallTree(getState());
it('starts as an unfiltered call tree', function () {
expect(formatTree(originalCallTree)).toEqual([
'- A (total: 3, self: —)',
' - B (total: 3, self: —)',
' - C (total: 2, self: —)',
' - D (total: 1, self: —)',
' - E (total: 1, self: 1)',
' - F (total: 1, self: —)',
' - G (total: 1, self: 1)',
' - H (total: 1, self: —)',
' - C (total: 1, self: 1)',
]);
});
it('function C can be merged into callers', function () {
dispatch(
addTransformToStack(threadIndex, {
type: 'merge-function',
funcIndex: C,
})
);
const callTree = selectedThreadSelectors.getCallTree(getState());
expect(formatTree(callTree)).toEqual([
'- A (total: 3, self: —)',
' - B (total: 3, self: —)',
' - D (total: 1, self: —)',
' - E (total: 1, self: 1)',
' - F (total: 1, self: —)',
' - G (total: 1, self: 1)',
' - H (total: 1, self: 1)',
]);
});
});
});
describe('"drop-function" transform', function () {
describe('on a call tree', function () {
const {
profile,
funcNamesPerThread: [funcNames],
} = getProfileFromTextSamples(`
A A A A
B B C B
C C E
D
`);
const threadIndex = 0;
const C = funcNames.indexOf('C');
const { dispatch, getState } = storeWithProfile(profile);
const originalCallTree = selectedThreadSelectors.getCallTree(getState());
it('starts as an unfiltered call tree', function () {
expect(formatTree(originalCallTree)).toEqual([
'- A (total: 4, self: —)',
' - B (total: 3, self: —)',
' - C (total: 2, self: 1)',
' - D (total: 1, self: 1)',
' - E (total: 1, self: 1)',
' - C (total: 1, self: 1)',
]);
});
it('function C can be merged into callers', function () {
dispatch(
addTransformToStack(threadIndex, {
type: 'drop-function',
funcIndex: C,
})
);
const callTree = selectedThreadSelectors.getCallTree(getState());
expect(formatTree(callTree)).toEqual([
'- A (total: 1, self: —)',
' - B (total: 1, self: —)',
' - E (total: 1, self: 1)',
]);
});
});
});
describe('"focus-function" transform', function () {
describe('on a call tree', function () {
/**
* Assert this transformation:
*
* A:3,0 X:3,0
* / \ |
* v v Focus X v
* X:1,0 B:2,0 -> Y:3,0
* | | / \
* v v v v
* Y:1,0 X:2,0 C:1,1 X:2,0
* | | |
* v v v
* C:1,1 Y:2,0 Y:2,0
* | |
* v v
* X:2,0 D:2,2
* |
* v
* Y:2,0
* |
* v
* D:2,2
*/
const {
profile,
funcNamesPerThread: [funcNames],
} = getProfileFromTextSamples(`
A A A
X B B
Y X X
C Y Y
X X
Y Y
D D
`);
const threadIndex = 0;
const X = funcNames.indexOf('X');
it('starts as an unfiltered call tree', function () {
const { getState } = storeWithProfile(profile);
expect(
formatTree(selectedThreadSelectors.getCallTree(getState()))
).toEqual([
'- A (total: 3, self: —)',
' - B (total: 2, self: —)',
' - X (total: 2, self: —)',
' - Y (total: 2, self: —)',
' - X (total: 2, self: —)',
' - Y (total: 2, self: —)',
' - D (total: 2, self: 2)',
' - X (total: 1, self: —)',
' - Y (total: 1, self: —)',
' - C (total: 1, self: 1)',
]);
});
it('can be focused on a function', function () {
const { dispatch, getState } = storeWithProfile(profile);
dispatch(
addTransformToStack(threadIndex, {
type: 'focus-function',
funcIndex: X,
})
);
expect(
formatTree(selectedThreadSelectors.getCallTree(getState()))
).toEqual([
'- X (total: 3, self: —)',
' - Y (total: 3, self: —)',
' - X (total: 2, self: —)',
' - Y (total: 2, self: —)',
' - D (total: 2, self: 2)',
' - C (total: 1, self: 1)',
]);
});
});
});
describe('"focus-category" transform', function () {
describe('on a tiny call tree', function () {
const { profile } = getProfileFromTextSamples(`
A[cat:Graphics]
B[cat:Layout]
C[cat:Graphics]
`);
const threadIndex = 0;
if (profile.meta.categories === undefined) {
throw new Error('Expected profile to have categories');
}
const categoryIndex = profile.meta.categories
.map((c, i) => (c.name === 'Graphics' ? i : -1))
.filter((i) => i !== -1)[0];
const { dispatch, getState } = storeWithProfile(profile);
const originalCallTree = selectedThreadSelectors.getCallTree(getState());
it('starts as an unfiltered call tree', function () {
expect(formatTree(originalCallTree)).toEqual([
'- A (total: 1, self: —)',
' - B (total: 1, self: —)',
' - C (total: 1, self: 1)',
]);
});
it('category Graphics can be focused', function () {
dispatch(
addTransformToStack(threadIndex, {
type: 'focus-category',
category: categoryIndex,
})
);
const callTree = selectedThreadSelectors.getCallTree(getState());
expect(formatTree(callTree)).toEqual([
'- A (total: 1, self: —)',
' - C (total: 1, self: 1)',
]);
});
});
describe('on a slightly larger call tree', function () {
const { profile } = getProfileFromTextSamples(`
A[cat:Graphics]
B[cat:Layout]
D[cat:Layout]
C[cat:Graphics]
`);
const threadIndex = 0;
if (profile.meta.categories === undefined) {
throw new Error('Expected profile to have categories');
}
const categoryIndex = profile.meta.categories
.map((c, i) => (c.name === 'Graphics' ? i : -1))
.filter((i) => i !== -1)[0];
const { dispatch, getState } = storeWithProfile(profile);
it('category Graphics can be focused', function () {
dispatch(
addTransformToStack(threadIndex, {
type: 'focus-category',
category: categoryIndex,
})
);
const callTree = selectedThreadSelectors.getCallTree(getState());
expect(formatTree(callTree)).toEqual([
'- A (total: 1, self: —)',
' - C (total: 1, self: 1)',
]);
});
});
describe('on a tinier call tree', function () {
const { profile } = getProfileFromTextSamples(`
A[cat:Graphics]
B[cat:Layout]
`);
const threadIndex = 0;
if (profile.meta.categories === undefined) {
throw new Error('Expected profile to have categories');
}
const categoryIndex = profile.meta.categories
.map((c, i) => (c.name === 'Graphics' ? i : -1))
.filter((i) => i !== -1)[0];
const { dispatch, getState } = storeWithProfile(profile);
it('category Graphics can be focused', function () {
dispatch(
addTransformToStack(threadIndex, {
type: 'focus-category',
category: categoryIndex,
})
);
const callTree = selectedThreadSelectors.getCallTree(getState());
expect(formatTree(callTree)).toEqual(['- A (total: 1, self: 1)']);
});
});
describe('on a small call tree', function () {
const { profile } = getProfileFromTextSamples(`
A[cat:Graphics] A[cat:Graphics]
B[cat:Layout]
`);
const threadIndex = 0;
if (profile.meta.categories === undefined) {
throw new Error('Expected profile to have categories');
}
const categoryIndex = profile.meta.categories
.map((c, i) => (c.name === 'Graphics' ? i : -1))
.filter((i) => i !== -1)[0];
const { dispatch, getState } = storeWithProfile(profile);
it('category Graphics can be focused', function () {
dispatch(
addTransformToStack(threadIndex, {
type: 'focus-category',
category: categoryIndex,
})
);
const callTree = selectedThreadSelectors.getCallTree(getState());
expect(formatTree(callTree)).toEqual(['- A (total: 2, self: 2)']);
});
});
describe('on a small call tree 2', function () {
const { profile } = getProfileFromTextSamples(`
B[cat:Layout] A[cat:Graphics]
A[cat:Graphics]
`);
const threadIndex = 0;
if (profile.meta.categories === undefined) {
throw new Error('Expected profile to have categories');
}
const categoryIndex = profile.meta.categories
.map((c, i) => (c.name === 'Graphics' ? i : -1))
.filter((i) => i !== -1)[0];
const { dispatch, getState } = storeWithProfile(profile);
it('category Graphics can be focused', function () {
dispatch(
addTransformToStack(threadIndex, {
type: 'focus-category',
category: categoryIndex,
})
);
const callTree = selectedThreadSelectors.getCallTree(getState());
expect(formatTree(callTree)).toEqual(['- A (total: 2, self: 2)']);
});
});
describe('on a longer larger call tree', function () {
const { profile } = getProfileFromTextSamples(`
A[cat:Graphics]
B[cat:Layout]
D[cat:Layout]
A[cat:Graphics]
D[cat:Layout]
`);
const threadIndex = 0;
if (profile.meta.categories === undefined) {
throw new Error('Expected profile to have categories');
}
const categoryIndex = profile.meta.categories
.map((c, i) => (c.name === 'Graphics' ? i : -1))
.filter((i) => i !== -1)[0];
const { dispatch, getState } = storeWithProfile(profile);
it('category Graphics can be focused', function () {
dispatch(
addTransformToStack(threadIndex, {
type: 'focus-category',
category: categoryIndex,
})
);
const callTree = selectedThreadSelectors.getCallTree(getState());
expect(formatTree(callTree)).toEqual([
'- A (total: 1, self: —)',
' - A (total: 1, self: 1)',
]);
});
});
});
describe('"collapse-resource" transform', function () {
describe('combined implementation', function () {
/**
* A
* -----´ `----- A
* / \ |
* v v Collapse firefox v
* B[lib:firefox] E[lib:firefox] -> firefox
* | | / \
* v v D F
* C[lib:firefox] F
* |
* v
* D
*/
const {
profile,
funcNamesPerThread: [funcNames],
} = getProfileFromTextSamples(`
A A
B[lib:firefox] E[lib:firefox]
C[lib:firefox] F
D
`);
const collapsedFuncNames = [...funcNames, 'firefox'];
const threadIndex = 0;
const thread = profile.threads[threadIndex];
const firefoxNameIndex = thread.stringTable.indexForString('firefox');
const firefoxResourceIndex = thread.resourceTable.name.findIndex(
(stringIndex) => stringIndex === firefoxNameIndex
);
if (firefoxResourceIndex === -1) {
throw new Error('Unable to find the firefox resource');
}
it('starts as an unfiltered call tree', function () {
const { getState } = storeWithProfile(profile);
expect(
formatTree(selectedThreadSelectors.getCallTree(getState()))
).toEqual([
'- A (total: 2, self: —)',
' - B (total: 1, self: —)',
' - C (total: 1, self: —)',
' - D (total: 1, self: 1)',
' - E (total: 1, self: —)',
' - F (total: 1, self: 1)',
]);
});
it('can collapse the "firefox" library', function () {
const { dispatch, getState } = storeWithProfile(profile);
dispatch(
addCollapseResourceTransformToStack(
threadIndex,
firefoxResourceIndex,
'combined'
)
);
expect(
formatTree(selectedThreadSelectors.getCallTree(getState()))
).toEqual([
'- A (total: 2, self: —)',
' - firefox (total: 2, self: —)',
' - D (total: 1, self: 1)',
' - F (total: 1, self: 1)',
]);
});
it('can apply the transform to the selected CallNodePaths', function () {
// This transform requires a valid thread, unlike many of the others.
const { dispatch, getState } = storeWithProfile(profile);
dispatch(
changeSelectedCallNode(
threadIndex,
['A', 'B', 'C', 'D'].map((name) => collapsedFuncNames.indexOf(name))
)
);
dispatch(
addCollapseResourceTransformToStack(
threadIndex,
firefoxResourceIndex,
'combined'
)
);
expect(
selectedThreadSelectors.getSelectedCallNodePath(getState())
).toEqual(
['A', 'firefox', 'D'].map((name) => collapsedFuncNames.indexOf(name))
);
});
});
describe('specific implementation', function () {
/**
* A.js A.js
* / \ |
* v v Collapse firefox v
* B.cpp:firefox H.cpp:firefox -> firefox
* | | |
* v v v
* C.js I.js F.cpp
* | |
* v v
* D.cpp:firefox G.js
* |
* v
* E.js
* |
* v
* F.cpp
* |
* v
* G.js
*
* This behavior may seem a bit surprising, but any stack that doesn't match the
* current implementation AND has a callee that is collapsed, will itself be collapsed.
* It may be obvious to collapse C.js in this case, as it's between two different
* firefox library stacks, but E.js and I.js will be collapsed as well. The only
* retained leaf "js" stack is G.js, because it follows a non-collapsed "cpp" stack.
*/
const {
profile,
funcNamesPerThread: [funcNames],
} = getProfileFromTextSamples(`
A.js A.js
B.cpp[lib:firefox] H.cpp[lib:firefox]
C.js I.js
D.cpp[lib:firefox]
E.js
F.cpp
G.js
`);
const collapsedFuncNames = [...funcNames, 'firefox'];
const threadIndex = 0;
const thread = profile.threads[threadIndex];
const firefoxNameIndex = thread.stringTable.indexForString('firefox');
const firefoxResourceIndex = thread.resourceTable.name.findIndex(
(stringIndex) => stringIndex === firefoxNameIndex
);
if (firefoxResourceIndex === -1) {
throw new Error('Unable to find the firefox resource');
}
const collapseTransform = {
type: 'collapse-resource',
resourceIndex: firefoxResourceIndex,
collapsedFuncIndex: thread.funcTable.length,
implementation: 'cpp',
};
it('starts as an unfiltered call tree', function () {
const { getState } = storeWithProfile(profile);
expect(
formatTree(selectedThreadSelectors.getCallTree(getState()))
).toEqual([
'- A.js (total: 2, self: —)',
' - B.cpp (total: 1, self: —)',
' - C.js (total: 1, self: —)',
' - D.cpp (total: 1, self: —)',
' - E.js (total: 1, self: —)',
' - F.cpp (total: 1, self: —)',
' - G.js (total: 1, self: 1)',
' - H.cpp (total: 1, self: —)',
' - I.js (total: 1, self: 1)',
]);
});
it('can collapse the "firefox" library as well as the C.js intermediate function', function () {
const { dispatch, getState } = storeWithProfile(profile);
dispatch(
// Note the 'cpp' implementation filter.
addTransformToStack(threadIndex, collapseTransform)
);
expect(
formatTree(selectedThreadSelectors.getCallTree(getState()))
).toEqual([
'- A.js (total: 2, self: —)',
' - firefox (total: 2, self: 1)',
' - F.cpp (total: 1, self: —)',
' - G.js (total: 1, self: 1)',
]);
});
it('can apply the transform to the selected CallNodePaths', function () {
// This transform requires a valid thread, unlike many of the others.
const { dispatch, getState } = storeWithProfile(profile);
dispatch(