test: check vinyl/json corner cases

Follow-up

  5993e149 vinyl: sanitize full/empty key stmt detection
  4273ec52 box: introduce JSON Indexes

test/vinyl/json.result

+test_run = require('test_run').new()
+---
+...
+--
+-- Lookup in the primary index when applying a deferred DELETE
+-- for a secondary index on commit.
+--
+s = box.schema.space.create('test', {engine = 'vinyl'})
+---
+...
+pk = s:create_index('pk', {parts = { {'[1].a', 'unsigned'}, {'[1].b', 'unsigned'}, {'[1].c', 'unsigned'} }})
+---
+...
+sk = s:create_index('sk', {unique = false, parts = {2, 'unsigned'}})
+---
+...
+s:replace{{a = 1, b = 2, c = 3}, 10}
+---
+- [{'b': 2, 'a': 1, 'c': 3}, 10]
+...
+sk:select()
+---
+- - [{'b': 2, 'a': 1, 'c': 3}, 10]
+...
+s:drop()
+---
+...
+--
+-- Lookup on INSERT to check the unique constraint.
+--
+s = box.schema.space.create('test', {engine = 'vinyl'})
+---
+...
+pk = s:create_index('pk', {parts = { {'[1].a', 'unsigned'}, {'[1].b', 'unsigned'}, {'[1].c', 'unsigned'} }})
+---
+...
+s:replace{{a = 1, b = 2, c = 3}, 1}
+---
+- [{'b': 2, 'a': 1, 'c': 3}, 1]
+...
+box.snapshot()
+---
+- ok
+...
+s:replace{{a = 1, b = 2, c = 3}, 2}
+---
+- [{'b': 2, 'a': 1, 'c': 3}, 2]
+...
+s:insert{{a = 1, b = 2, c = 3}, 3}
+---
+- error: Duplicate key exists in unique index 'pk' in space 'test'
+...
+pk:stat().disk.iterator.lookup -- 0 (served from memory)
+---
+- 0
+...
+s:drop()
+---
+...
+--
+-- Gap locks coalescing.
+--
+s = box.schema.space.create('test', {engine = 'vinyl'})
+---
+...
+pk = s:create_index('pk', {parts = { {'[1].a', 'unsigned'}, {'[1].b', 'unsigned'}, {'[1].c', 'unsigned'} }})
+---
+...
+s:replace{{a = 1, b = 1, c = 1}}
+---
+- [{'b': 1, 'a': 1, 'c': 1}]
+...
+s:replace{{a = 1, b = 1, c = 2}}
+---
+- [{'b': 1, 'a': 1, 'c': 2}]
+...
+box.begin()
+---
+...
+gap_locks_1 = box.stat.vinyl().tx.gap_locks
+---
+...
+s:select({1, 1}, {iterator = 'ge', limit = 1})
+---
+- - [{'b': 1, 'a': 1, 'c': 1}]
+...
+s:select({1, 1}, {iterator = 'gt'})
+---
+- []
+...
+gap_locks_2 = box.stat.vinyl().tx.gap_locks
+---
+...
+gap_locks_2 - gap_locks_1 -- 2 (tracking intervals must not be coalesced)
+---
+- 2
+...
+box.commit()
+---
+...
+s:drop()
+---
+...
+--
+-- Cache iterator stop condition.
+--
+s = box.schema.space.create('test', {engine = 'vinyl'})
+---
+...
+pk = s:create_index('pk', {parts = { {'[1].a', 'unsigned'}, {'[1].b', 'unsigned'}, {'[1].c', 'unsigned'} }})
+---
+...
+s:replace{{a = 1, b = 1, c = 1}}
+---
+- [{'b': 1, 'a': 1, 'c': 1}]
+...
+s:replace{{a = 1, b = 1, c = 2}}
+---
+- [{'b': 1, 'a': 1, 'c': 2}]
+...
+s:replace{{a = 1, b = 1, c = 3}}
+---
+- [{'b': 1, 'a': 1, 'c': 3}]
+...
+s:insert{{a = 1, b = 1, c = 3}}
+---
+- error: Duplicate key exists in unique index 'pk' in space 'test'
+...
+s:select{1, 1, 1}
+---
+- - [{'b': 1, 'a': 1, 'c': 1}]
+...
+s:select{1, 1}
+---
+- - [{'b': 1, 'a': 1, 'c': 1}]
+  - [{'b': 1, 'a': 1, 'c': 2}]
+  - [{'b': 1, 'a': 1, 'c': 3}]
+...
+s:drop()
+---
+...

test/vinyl/json.test.lua

+test_run = require('test_run').new()
+
+--
+-- Lookup in the primary index when applying a deferred DELETE
+-- for a secondary index on commit.
+--
+s = box.schema.space.create('test', {engine = 'vinyl'})
+pk = s:create_index('pk', {parts = { {'[1].a', 'unsigned'}, {'[1].b', 'unsigned'}, {'[1].c', 'unsigned'} }})
+sk = s:create_index('sk', {unique = false, parts = {2, 'unsigned'}})
+s:replace{{a = 1, b = 2, c = 3}, 10}
+sk:select()
+s:drop()
+
+--
+-- Lookup on INSERT to check the unique constraint.
+--
+s = box.schema.space.create('test', {engine = 'vinyl'})
+pk = s:create_index('pk', {parts = { {'[1].a', 'unsigned'}, {'[1].b', 'unsigned'}, {'[1].c', 'unsigned'} }})
+s:replace{{a = 1, b = 2, c = 3}, 1}
+box.snapshot()
+s:replace{{a = 1, b = 2, c = 3}, 2}
+s:insert{{a = 1, b = 2, c = 3}, 3}
+pk:stat().disk.iterator.lookup -- 0 (served from memory)
+s:drop()
+
+--
+-- Gap locks coalescing.
+--
+s = box.schema.space.create('test', {engine = 'vinyl'})
+pk = s:create_index('pk', {parts = { {'[1].a', 'unsigned'}, {'[1].b', 'unsigned'}, {'[1].c', 'unsigned'} }})
+s:replace{{a = 1, b = 1, c = 1}}
+s:replace{{a = 1, b = 1, c = 2}}
+box.begin()
+gap_locks_1 = box.stat.vinyl().tx.gap_locks
+s:select({1, 1}, {iterator = 'ge', limit = 1})
+s:select({1, 1}, {iterator = 'gt'})
+gap_locks_2 = box.stat.vinyl().tx.gap_locks
+gap_locks_2 - gap_locks_1 -- 2 (tracking intervals must not be coalesced)
+box.commit()
+s:drop()
+
+--
+-- Cache iterator stop condition.
+--
+s = box.schema.space.create('test', {engine = 'vinyl'})
+pk = s:create_index('pk', {parts = { {'[1].a', 'unsigned'}, {'[1].b', 'unsigned'}, {'[1].c', 'unsigned'} }})
+s:replace{{a = 1, b = 1, c = 1}}
+s:replace{{a = 1, b = 1, c = 2}}
+s:replace{{a = 1, b = 1, c = 3}}
+s:insert{{a = 1, b = 1, c = 3}}
+s:select{1, 1, 1}
+s:select{1, 1}
+s:drop()